Ethernet programming question

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I have a system based on the Freescale MPC5200B, running VxWorks, which has
a strange problem.


The system has a set of self tests which opens a socket server to the
world.  There is some PC software which opens a socket on the server for
communication, and then the user on the PC can run batteries of tests on
the card.  


The system also has a firmware uploader.  It works in the opposite way -
the PC software opens a socket server. and the embedded client connects to
it, after which the PC sends it new application software which the embedded
software burns.


Now the problem:  On 99% of the cards produced, this works fine.  On a few
of the cards, the uploader works, but the self-test software fails - the
firmware calls accept() and never returns, and never sees the PC trying to
open the sockets.  It is consistent - the cards that don't work, don't
work, and the others do.


You might say that this isn't exactly a software problem, and I'd agree,
but the company I made the software is asking me:  What device is failing
that they need to replace?  If the uploader is working, the Ethernet
drivers and processor are working.


So, now the explanation is passed, and here is the quesstion:  What can
fail in a call to socket "accept()" that is different from the "connect()"
in the opposite direction?  If accept (blocking) never returns, what is
happening there that could point to the problem on the 'bad' set of cards?


Thanks      
                    
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Re: Ethernet programming question
Quoted text here. Click to load it

On the contrary, my initial suspicions _are_ in the area of software (or
at least network configuration) problems.

Quoted text here. Click to load it

I am assuming, with your use of accept and friends, that this is a TCP/IP
based socket server and not some lower level or specialist protocol.

What is the network configuration on the failing devices ?

Does the Freescale board respond to ping requests ? (Assuming you are
not dropping ICMP packets for security reasons.)

My initial investigations would be in determining that the IP address,
subnet and gateway (if any) on the Freescale board all match what you
think they do.

If you are reusing the same IP address on different boards, are you
making sure that the arp cache on any relevant network device is
flushed after swapping the boards and _before_ trying to connect to
the new board ?

Simon.

--
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world

Re: Ethernet programming question
Quoted text here. Click to load it

You are looking at the high level only, while this is likely
only a low level detectable problem.
I have used the 5200B - and written all stuff for it from scratch,
including the SDMA (or Bestcomm, as they have it also) microcode,
and I can say the part works fine but there are plenty of details,
known and unknown silicon bugs etc.

Dimiter

------------------------------------------------------
Dimiter Popoff               Transgalactic Instruments

http://www.tgi-sci.com
------------------------------------------------------
http://www.flickr.com/photos/didi_tgi/sets/72157600228621276 /



Re: Ethernet programming question
Quoted text here. Click to load it
Accept() is waiting indifinetly for a connexion request from the other
end. If no
connection request is received or if the connexion request is
discarded, the call
to accept() will never return. Here are ten reasons why a connection
request might be
discarded.

http://www-01.ibm.com/support/docview.wss?uid3D%swg21063711

Re: Ethernet programming question
Wow - so many responses after a few hours.  I'll respond to them in order:

Simon - Your TCDP/IP assumption is correct .  And all the boards share a
single, reused, fixed IP address, subnet, no gateway.  The only point of
the ethernet connection here is for manufacturing and test purposes - the
board uses an external communication bus (not on the 5200) for operational
communication.  The tester setup is like such.  Power down the system
(except for the PC running the tester software).  Attach a card to the test
bed and power it up.  Run the uploader and put the test application
software on the card.  Cycle Power again, run on the PC the test software
and connect to run the tests.  The same cards (after talking with the
people running the tests, it's better than 99% - only two specific cards
are failing out of a batch of 500).  No ARP cache to clear in this
situation.


Dimiter - Yes, I know, I'm just trying to see if there's anything known
about the accept() call that is activating something so I can give the
manufacturing floor a pointer on what is wrong with the specific cards.


Lanarcam - That was the kind of information I think I was looking for, but
the link is no good.  If you could recheck and repost, I'd appreciate it.    
 

                    
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Re: Ethernet programming question
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The link works for me, but you can Google for:
"TCP/IP discards SYN packet from client IBM"


Re: Ethernet programming question
Quoted text here. Click to load it

In theory, there is potentially a ARP cache on the PC as well which could
come into play as a issue (unless the PC itself is power cycled between
tests) when the PC tries to initiate a outgoing connection to the board.

However, given the numbers involved (only 2 failures out of 500) I now
strongly suspect this has nothing to do with it.

My recommendation now is that you install Wireshark on your test PC (or
maybe a second PC) and watch what happens on the network when your PC
based test program tries to talk to the board. Compare this to what
happens when you run your test program against a known good board.

Wild speculation time: it sounds like you are using a TFTP loader present
on the board to do the initial firmware load. do you have a way of dumping
the loaded image back to the test PC using the onboard loader so that
you can compare it to the original image ?

It's always possible that the image written to the board is bad due to
faulty flash on the board. Do you have any other output (say serial port
or LED activity) which indicates that the loaded image is actually
running on the board ?

Simon.

--
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world

Re: Ethernet programming question
Quoted text here. Click to load it

And yes, before anyone comments :-), since the OP is using the same IP
address for the firmware load as when running his program, any ARP cache
on the PC should be updated by the firmware load, so that cannot be it.

My recommendation is to run Wireshark and see if that tells you anything.

Simon.

--
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world

Re: Ethernet programming question
Quoted text here. Click to load it


Use the nonblocking version of accept() and dump ifShow(), arpShow()
and other such when it fails.

--
Les Cargill


Re: Ethernet programming question
More comments on the comments:

First, they called me from downstairs:  Whoever logged the cards logged
them incorrectly, this is only happening on one card, not two.


Lanarcam - found the article, and it is interesting.  (1-6 and 8-10) don't
seem to apply to what's going on here, but (7) is very interesting:  


7.  If the stack is unable to allocate storage to represent the connection,
the SYN is discarded. This should not occur.


I'll tell them to replace memories on the card based on that and hope for
the best.


If that fails, we'll start with Wireshark and see if we can see anything.
I don't want to go changing the test firmware for something that is only
part of the manufacturing and test part of the code, the costs of
re-running all the verification tests alone would be too much, not to
mention the headache of reburning all these cards.      

                    
---------------------------------------        
Posted through http://www.EmbeddedRelated.com

Re: Ethernet programming question
I downloaded and ran Wireshark, and mostly learned that I have a lot to
learn about TCP/IP.  However, I have recordings of the bad card vs. one of
the good cards, and I'll post them here, if anyone understands them I'd
appreciate it.


This is the bad card:

No.     Time        Source                Destination           Protocol
Length Info

      1 0.000000    Giga-Byt_c4:5e:2c     Broadcast             ARP      42
    Gratuitous ARP for 90.17.100.1 (Request)


Frame 1: 42 bytes on wire (336 bits), 42 bytes captured (336 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Address Resolution Protocol (request/gratuitous ARP)

No.     Time        Source                Destination           Protocol
Length Info

      2 0.233947    Giga-Byt_c4:5e:2c     Broadcast             ARP      42
    Gratuitous ARP for 90.17.100.1 (Request)


Frame 2: 42 bytes on wire (336 bits), 42 bytes captured (336 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Address Resolution Protocol (request/gratuitous ARP)

No.     Time        Source                Destination           Protocol
Length Info

      3 1.233989    Giga-Byt_c4:5e:2c     Broadcast             ARP      42
    Gratuitous ARP for 90.17.100.1 (Request)


Frame 3: 42 bytes on wire (336 bits), 42 bytes captured (336 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Address Resolution Protocol (request/gratuitous ARP)

No.     Time        Source                Destination           Protocol
Length Info

      4 2.242260    90.17.100.1           224.0.0.22            IGMP     54
    V3 Membership Report / Join group 239.255.255.250 for any sources


Frame 4: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:16 (01:00:5e:00:00:16)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.22 (224.0.0.22)

Internet Group Management Protocol

No.     Time        Source                Destination           Protocol
Length Info

      5 2.243338    0.1.0.6               224.0.0.22            IGMP     54
    V3 Membership Report / Join group 239.255.255.250 for any sources


Frame 5: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:16 (01:00:5e:00:00:16)

Internet Protocol Version 4, Src: 0.1.0.6 (0.1.0.6), Dst: 224.0.0.22
(224.0.0.22)

Internet Group Management Protocol

No.     Time        Source                Destination           Protocol
Length Info

      6 2.244044    0.1.0.6               224.0.0.22            IGMP     54
    V3 Membership Report / Leave group 239.255.255.250


Frame 6: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:16 (01:00:5e:00:00:16)

Internet Protocol Version 4, Src: 0.1.0.6 (0.1.0.6), Dst: 224.0.0.22
(224.0.0.22)

Internet Group Management Protocol

No.     Time        Source                Destination           Protocol
Length Info

      7 2.244335    90.17.100.1           224.0.0.22            IGMP     54
    V3 Membership Report / Join group 224.0.0.251 for any sources


Frame 7: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:16 (01:00:5e:00:00:16)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.22 (224.0.0.22)

Internet Group Management Protocol

No.     Time        Source                Destination           Protocol
Length Info

      8 2.250636    90.17.100.1           224.0.0.251           MDNS     75
    Standard query PTR _lxi._tcp.local, "QU" question


Frame 8: 75 bytes on wire (600 bits), 75 bytes captured (600 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

      9 2.310428    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<00>


Frame 9: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     10 2.489919    90.17.100.1           224.0.0.251           MDNS     88
    Standard query ANY ew-lab.local, "QU" question


Frame 10: 88 bytes on wire (704 bits), 88 bytes captured (704 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     11 2.720706    Giga-Byt_c4:5e:2c     Broadcast             ARP      42
    Who has 90.17.0.1?  Tell 90.17.100.1


Frame 11: 42 bytes on wire (336 bits), 42 bytes captured (336 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Address Resolution Protocol (request)

No.     Time        Source                Destination           Protocol
Length Info

     12 2.720891    Motorola_32:53:22     Giga-Byt_c4:5e:2c     ARP      60
    90.17.0.1 is at 08:00:3e:32:53:22


Frame 12: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Address Resolution Protocol (reply)

No.     Time        Source                Destination           Protocol
Length Info

     13 2.720897    90.17.100.1           90.17.0.1             TCP      62
    dmdocbroker > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 13: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: dmdocbroker (1489), Dst Port:
telnet (23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     14 2.721042    90.17.0.1             90.17.100.1           TCP      60
    telnet > dmdocbroker [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 14: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: dmdocbroker
(1489), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     15 2.739917    90.17.100.1           224.0.0.251           MDNS     88
    Standard query ANY ew-lab.local, "QM" question


Frame 15: 88 bytes on wire (704 bits), 88 bytes captured (704 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     16 2.989944    90.17.100.1           224.0.0.251           MDNS     88
    Standard query ANY ew-lab.local, "QM" question


Frame 16: 88 bytes on wire (704 bits), 88 bytes captured (704 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     17 3.060229    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<00>


Frame 17: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     18 3.062172    0.1.0.6               224.0.0.22            IGMP     54
    V3 Membership Report / Leave group 239.255.255.250


Frame 18: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:16 (01:00:5e:00:00:16)

Internet Protocol Version 4, Src: 0.1.0.6 (0.1.0.6), Dst: 224.0.0.22
(224.0.0.22)

Internet Group Management Protocol

No.     Time        Source                Destination           Protocol
Length Info

     19 3.191099    90.17.100.1           90.17.0.1             TCP      62
    dmdocbroker > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 19: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: dmdocbroker (1489), Dst Port:
telnet (23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     20 3.191262    90.17.0.1             90.17.100.1           TCP      60
    telnet > dmdocbroker [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 20: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: dmdocbroker
(1489), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     21 3.234079    90.17.100.1           224.0.0.22            IGMP     62
    V3 Membership Report / Join group 239.255.255.250 for any sources /
Join group 224.0.0.251 for any sources


Frame 21: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:16 (01:00:5e:00:00:16)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.22 (224.0.0.22)

Internet Group Management Protocol

No.     Time        Source                Destination           Protocol
Length Info

     22 3.239921    90.17.100.1           224.0.0.251           MDNS    
120    Standard query response A, cache flush 90.17.100.1 PTR, cache flush
ew-lab.local


Frame 22: 120 bytes on wire (960 bits), 120 bytes captured (960 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (response)

No.     Time        Source                Destination           Protocol
Length Info

     23 3.348332    90.17.100.1           224.0.0.251           MDNS     75
    Standard query PTR _lxi._tcp.local, "QM" question


Frame 23: 75 bytes on wire (600 bits), 75 bytes captured (600 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     24 3.697954    90.17.100.1           90.17.0.1             TCP      62
    dmdocbroker > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 24: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: dmdocbroker (1489), Dst Port:
telnet (23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     25 3.698124    90.17.0.1             90.17.100.1           TCP      60
    telnet > dmdocbroker [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 25: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: dmdocbroker
(1489), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     26 3.810272    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<00>


Frame 26: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     27 4.238030    90.17.100.1           224.0.0.251           MDNS    
120    Standard query response A, cache flush 90.17.100.1 PTR, cache flush
ew-lab.local


Frame 27: 120 bytes on wire (960 bits), 120 bytes captured (960 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (response)

No.     Time        Source                Destination           Protocol
Length Info

     28 4.560290    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<00>


Frame 28: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     29 5.310494    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB ROKAR<00>


Frame 29: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     30 5.346475    90.17.100.1           224.0.0.251           MDNS     75
    Standard query PTR _lxi._tcp.local, "QM" question


Frame 30: 75 bytes on wire (600 bits), 75 bytes captured (600 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     31 6.060352    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB ROKAR<00>


Frame 31: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     32 6.236147    90.17.100.1           224.0.0.251           MDNS    
120    Standard query response A, cache flush 90.17.100.1 PTR, cache flush
ew-lab.local


Frame 32: 120 bytes on wire (960 bits), 120 bytes captured (960 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (response)

No.     Time        Source                Destination           Protocol
Length Info

     33 6.810388    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB ROKAR<00>


Frame 33: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     34 7.560416    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB ROKAR<00>


Frame 34: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     35 8.310653    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<20>


Frame 35: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     36 8.722067    90.17.100.1           90.17.0.1             TCP      62
    insitu-conf > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 36: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: insitu-conf (1490), Dst Port:
telnet (23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     37 8.722232    90.17.0.1             90.17.100.1           TCP      60
    telnet > insitu-conf [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 37: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: insitu-conf
(1490), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     38 9.060461    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<20>


Frame 38: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     39 9.126867    90.17.100.1           90.17.0.1             TCP      62
    insitu-conf > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 39: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: insitu-conf (1490), Dst Port:
telnet (23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     40 9.127033    90.17.0.1             90.17.100.1           TCP      60
    telnet > insitu-conf [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 40: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: insitu-conf
(1490), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     41 9.344682    90.17.100.1           224.0.0.251           MDNS     75
    Standard query PTR _lxi._tcp.local, "QM" question


Frame 41: 75 bytes on wire (600 bits), 75 bytes captured (600 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     42 9.628851    90.17.100.1           90.17.0.1             TCP      62
    insitu-conf > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 42: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: insitu-conf (1490), Dst Port:
telnet (23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     43 9.629025    90.17.0.1             90.17.100.1           TCP      60
    telnet > insitu-conf [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 43: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: insitu-conf
(1490), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     44 9.810502    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<20>


Frame 44: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     45 10.241186   90.17.100.1           224.0.0.251           MDNS    
120    Standard query response A, cache flush 90.17.100.1 PTR, cache flush
ew-lab.local


Frame 45: 120 bytes on wire (960 bits), 120 bytes captured (960 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (response)

No.     Time        Source                Destination           Protocol
Length Info

     46 10.560531   90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<20>


Frame 46: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     47 14.723095   90.17.100.1           90.17.0.1             TCP      62
    1491 > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 47: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: 1491 (1491), Dst Port: telnet
(23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     48 14.723267   90.17.0.1             90.17.100.1           TCP      60
    telnet > 1491 [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 48: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: 1491
(1491), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     49 15.161288   90.17.100.1           90.17.0.1             TCP      62
    1491 > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 49: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: 1491 (1491), Dst Port: telnet
(23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     50 15.161453   90.17.0.1             90.17.100.1           TCP      60
    telnet > 1491 [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 50: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: 1491
(1491), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     51 15.664241   90.17.100.1           90.17.0.1             TCP      62
    1491 > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 51: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: 1491 (1491), Dst Port: telnet
(23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     52 15.664416   90.17.0.1             90.17.100.1           TCP      60
    telnet > 1491 [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 52: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: 1491
(1491), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     53 17.349880   90.17.100.1           224.0.0.251           MDNS     75
    Standard query PTR _lxi._tcp.local, "QM" question


Frame 53: 75 bytes on wire (600 bits), 75 bytes captured (600 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     54 18.239543   90.17.100.1           224.0.0.251           MDNS    
120    Standard query response A, cache flush 90.17.100.1 PTR, cache flush
ew-lab.local


Frame 54: 120 bytes on wire (960 bits), 120 bytes captured (960 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (response)

and this is a good card:


No.     Time        Source                Destination           Protocol
Length Info

      1 0.000000    Giga-Byt_c4:5e:2c     Broadcast             ARP      42
    Gratuitous ARP for 90.17.100.1 (Request)


Frame 1: 42 bytes on wire (336 bits), 42 bytes captured (336 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Address Resolution Protocol (request/gratuitous ARP)

No.     Time        Source                Destination           Protocol
Length Info

      2 0.233995    Giga-Byt_c4:5e:2c     Broadcast             ARP      42
    Gratuitous ARP for 90.17.100.1 (Request)


Frame 2: 42 bytes on wire (336 bits), 42 bytes captured (336 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Address Resolution Protocol (request/gratuitous ARP)

No.     Time        Source                Destination           Protocol
Length Info

      3 0.275231    90.17.0.1             90.255.255.255        RIPv1    66
    Request


Frame 3: 66 bytes on wire (528 bits), 66 bytes captured (528 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: router (520), Dst Port: router (520)
Routing Information Protocol

No.     Time        Source                Destination           Protocol
Length Info

      4 1.234041    Giga-Byt_c4:5e:2c     Broadcast             ARP      42
    Gratuitous ARP for 90.17.100.1 (Request)


Frame 4: 42 bytes on wire (336 bits), 42 bytes captured (336 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Address Resolution Protocol (request/gratuitous ARP)

No.     Time        Source                Destination           Protocol
Length Info

      5 2.240405    90.17.100.1           224.0.0.22            IGMP     54
    V3 Membership Report / Join group 239.255.255.250 for any sources


Frame 5: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:16 (01:00:5e:00:00:16)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.22 (224.0.0.22)

Internet Group Management Protocol

No.     Time        Source                Destination           Protocol
Length Info

      6 2.241332    0.1.0.6               224.0.0.22            IGMP     54
    V3 Membership Report / Join group 239.255.255.250 for any sources


Frame 6: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:16 (01:00:5e:00:00:16)

Internet Protocol Version 4, Src: 0.1.0.6 (0.1.0.6), Dst: 224.0.0.22
(224.0.0.22)

Internet Group Management Protocol

No.     Time        Source                Destination           Protocol
Length Info

      7 2.241522    0.1.0.6               224.0.0.22            IGMP     54
    V3 Membership Report / Leave group 239.255.255.250


Frame 7: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:16 (01:00:5e:00:00:16)

Internet Protocol Version 4, Src: 0.1.0.6 (0.1.0.6), Dst: 224.0.0.22
(224.0.0.22)

Internet Group Management Protocol

No.     Time        Source                Destination           Protocol
Length Info

      8 2.242757    90.17.100.1           224.0.0.22            IGMP     54
    V3 Membership Report / Join group 224.0.0.251 for any sources


Frame 8: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:16 (01:00:5e:00:00:16)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.22 (224.0.0.22)

Internet Group Management Protocol

No.     Time        Source                Destination           Protocol
Length Info

      9 2.310471    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<00>


Frame 9: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     10 2.444059    90.17.100.1           224.0.0.251           MDNS     75
    Standard query PTR _lxi._tcp.local, "QU" question


Frame 10: 75 bytes on wire (600 bits), 75 bytes captured (600 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     11 2.552455    90.17.100.1           224.0.0.251           MDNS     88
    Standard query ANY ew-lab.local, "QU" question


Frame 11: 88 bytes on wire (704 bits), 88 bytes captured (704 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     12 2.801496    90.17.100.1           224.0.0.251           MDNS     88
    Standard query ANY ew-lab.local, "QM" question


Frame 12: 88 bytes on wire (704 bits), 88 bytes captured (704 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     13 3.051497    90.17.100.1           224.0.0.251           MDNS     88
    Standard query ANY ew-lab.local, "QM" question


Frame 13: 88 bytes on wire (704 bits), 88 bytes captured (704 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     14 3.060266    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<00>


Frame 14: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     15 3.062218    0.1.0.6               224.0.0.22            IGMP     54
    V3 Membership Report / Leave group 239.255.255.250


Frame 15: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:16 (01:00:5e:00:00:16)

Internet Protocol Version 4, Src: 0.1.0.6 (0.1.0.6), Dst: 224.0.0.22
(224.0.0.22)

Internet Group Management Protocol

No.     Time        Source                Destination           Protocol
Length Info

     16 3.234133    90.17.100.1           224.0.0.22            IGMP     62
    V3 Membership Report / Join group 239.255.255.250 for any sources /
Join group 224.0.0.251 for any sources


Frame 16: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:16 (01:00:5e:00:00:16)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.22 (224.0.0.22)

Internet Group Management Protocol

No.     Time        Source                Destination           Protocol
Length Info

     17 3.300539    90.17.100.1           224.0.0.251           MDNS    
120    Standard query response A, cache flush 90.17.100.1 PTR, cache flush
ew-lab.local


Frame 17: 120 bytes on wire (960 bits), 120 bytes captured (960 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (response)

No.     Time        Source                Destination           Protocol
Length Info

     18 3.440198    90.17.100.1           224.0.0.251           MDNS     75
    Standard query PTR _lxi._tcp.local, "QM" question


Frame 18: 75 bytes on wire (600 bits), 75 bytes captured (600 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     19 3.810321    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<00>


Frame 19: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     20 4.298633    90.17.100.1           224.0.0.251           MDNS    
120    Standard query response A, cache flush 90.17.100.1 PTR, cache flush
ew-lab.local


Frame 20: 120 bytes on wire (960 bits), 120 bytes captured (960 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (response)

No.     Time        Source                Destination           Protocol
Length Info

     21 4.560337    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<00>


Frame 21: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     22 5.310550    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB ROKAR<00>


Frame 22: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     23 5.438333    90.17.100.1           224.0.0.251           MDNS     75
    Standard query PTR _lxi._tcp.local, "QM" question


Frame 23: 75 bytes on wire (600 bits), 75 bytes captured (600 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     24 5.692436    Giga-Byt_c4:5e:2c     Broadcast             ARP      42
    Who has 90.17.0.1?  Tell 90.17.100.1


Frame 24: 42 bytes on wire (336 bits), 42 bytes captured (336 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Address Resolution Protocol (request)

No.     Time        Source                Destination           Protocol
Length Info

     25 5.692618    Motorola_32:53:22     Giga-Byt_c4:5e:2c     ARP      60
    90.17.0.1 is at 08:00:3e:32:53:22


Frame 25: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Address Resolution Protocol (reply)

No.     Time        Source                Destination           Protocol
Length Info

     26 5.692624    90.17.100.1           90.17.0.1             TCP      62
    clvm-cfg > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 26: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: clvm-cfg (1476), Dst Port: telnet
(23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     27 5.692768    90.17.0.1             90.17.100.1           TCP      60
    telnet > clvm-cfg [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 27: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: clvm-cfg
(1476), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     28 6.060397    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB ROKAR<00>


Frame 28: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     29 6.143400    90.17.100.1           90.17.0.1             TCP      62
    clvm-cfg > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 29: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: clvm-cfg (1476), Dst Port: telnet
(23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     30 6.143561    90.17.0.1             90.17.100.1           TCP      60
    telnet > clvm-cfg [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 30: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: clvm-cfg
(1476), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     31 6.296761    90.17.100.1           224.0.0.251           MDNS    
120    Standard query response A, cache flush 90.17.100.1 PTR, cache flush
ew-lab.local


Frame 31: 120 bytes on wire (960 bits), 120 bytes captured (960 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (response)

No.     Time        Source                Destination           Protocol
Length Info

     32 6.646362    90.17.100.1           90.17.0.1             TCP      62
    clvm-cfg > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 32: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: clvm-cfg (1476), Dst Port: telnet
(23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     33 6.646532    90.17.0.1             90.17.100.1           TCP      60
    telnet > clvm-cfg [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 33: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: clvm-cfg
(1476), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     34 6.810436    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB ROKAR<00>


Frame 34: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     35 7.560461    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB ROKAR<00>


Frame 35: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     36 8.310690    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<20>


Frame 36: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     37 9.060514    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<20>


Frame 37: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     38 9.443351    90.17.100.1           224.0.0.251           MDNS     75
    Standard query PTR _lxi._tcp.local, "QM" question


Frame 38: 75 bytes on wire (600 bits), 75 bytes captured (600 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     39 9.810551    90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<20>


Frame 39: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     40 10.301803   90.17.100.1           224.0.0.251           MDNS    
120    Standard query response A, cache flush 90.17.100.1 PTR, cache flush
ew-lab.local


Frame 40: 120 bytes on wire (960 bits), 120 bytes captured (960 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (response)

No.     Time        Source                Destination           Protocol
Length Info

     41 10.560576   90.17.100.1           90.255.255.255        NBNS    
110    Registration NB EW_LAB<20>


Frame 41: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
90.255.255.255 (90.255.255.255)

User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)

NetBIOS Name Service

No.     Time        Source                Destination           Protocol
Length Info

     42 11.693837   90.17.100.1           90.17.0.1             TCP      62
    ms-sna-server > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60
SACK_PERM=1


Frame 42: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: ms-sna-server (1477), Dst Port:
telnet (23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     43 11.694007   90.17.0.1             90.17.100.1           TCP      60
    telnet > ms-sna-server [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 43: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port:
ms-sna-server (1477), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     44 12.178798   90.17.100.1           90.17.0.1             TCP      62
    ms-sna-server > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60
SACK_PERM=1


Frame 44: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: ms-sna-server (1477), Dst Port:
telnet (23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     45 12.178965   90.17.0.1             90.17.100.1           TCP      60
    telnet > ms-sna-server [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 45: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port:
ms-sna-server (1477), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     46 12.681750   90.17.100.1           90.17.0.1             TCP      62
    ms-sna-server > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60
SACK_PERM=1


Frame 46: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: ms-sna-server (1477), Dst Port:
telnet (23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     47 12.681918   90.17.0.1             90.17.100.1           TCP      60
    telnet > ms-sna-server [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 47: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port:
ms-sna-server (1477), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     48 17.441735   90.17.100.1           224.0.0.251           MDNS     75
    Standard query PTR _lxi._tcp.local, "QM" question


Frame 48: 75 bytes on wire (600 bits), 75 bytes captured (600 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     49 17.695006   90.17.100.1           90.17.0.1             TCP      62
    ms-sna-base > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 49: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: ms-sna-base (1478), Dst Port:
telnet (23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     50 17.695187   90.17.0.1             90.17.100.1           TCP      60
    telnet > ms-sna-base [RST, ACK] Seq=1 Ack=1 Win=0 Len=0


Frame 50: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: ms-sna-base
(1478), Seq: 1, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     51 18.113600   90.17.100.1           90.17.0.1             TCP      62
    ms-sna-base > telnet [SYN] Seq=0 Win65%535 Len=0 MSS14%60 SACK_PERM=1


Frame 51: 62 bytes on wire (496 bits), 62 bytes captured (496 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: ms-sna-base (1478), Dst Port:
telnet (23), Seq: 0, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     52 18.113902   90.17.0.1             90.17.100.1           TCP      60
    telnet > ms-sna-base [SYN, ACK] Seq20%83977669 Ack=1 Win81%92 Len=0
MSS14%60


Frame 52: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: ms-sna-base
(1478), Seq: 2083977669, Ack: 1, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     53 18.113925   90.17.100.1           90.17.0.1             TCP      54
    ms-sna-base > telnet [ACK] Seq=1 Ack20%83977670 Win65%535 Len=0


Frame 53: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: ms-sna-base (1478), Dst Port:
telnet (23), Seq: 1, Ack: 2083977670, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     54 18.300157   90.17.100.1           224.0.0.251           MDNS    
120    Standard query response A, cache flush 90.17.100.1 PTR, cache flush
ew-lab.local


Frame 54: 120 bytes on wire (960 bits), 120 bytes captured (960 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (response)

No.     Time        Source                Destination           Protocol
Length Info

     55 20.114983   90.17.100.1           90.17.0.1             TELNET   55
    Telnet Data ...


Frame 55: 55 bytes on wire (440 bits), 55 bytes captured (440 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: ms-sna-base (1478), Dst Port:
telnet (23), Seq: 1, Ack: 2083977670, Len: 1

Telnet

No.     Time        Source                Destination           Protocol
Length Info

     56 20.115214   90.17.0.1             90.17.100.1           TCP      60
    telnet > ms-sna-base [ACK] Seq20%83977670 Ack=2 Win81%92 Len=0


Frame 56: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: ms-sna-base
(1478), Seq: 2083977670, Ack: 2, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     57 20.115378   90.17.0.1             90.17.100.1           TELNET   60
    Telnet Data ...


Frame 57: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Motorola_32:53:22 (08:00:3e:32:53:22), Dst:
Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c)

Internet Protocol Version 4, Src: 90.17.0.1 (90.17.0.1), Dst: 90.17.100.1
(90.17.100.1)

Transmission Control Protocol, Src Port: telnet (23), Dst Port: ms-sna-base
(1478), Seq: 2083977670, Ack: 2, Len: 1

Telnet

No.     Time        Source                Destination           Protocol
Length Info

     58 20.225978   90.17.100.1           90.17.0.1             TCP      54
    ms-sna-base > telnet [ACK] Seq=2 Ack20%83977671 Win65%534 Len=0


Frame 58: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
Motorola_32:53:22 (08:00:3e:32:53:22)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst: 90.17.0.1
(90.17.0.1)

Transmission Control Protocol, Src Port: ms-sna-base (1478), Dst Port:
telnet (23), Seq: 2, Ack: 2083977671, Len: 0


No.     Time        Source                Destination           Protocol
Length Info

     59 33.440374   90.17.100.1           224.0.0.251           MDNS     75
    Standard query PTR _lxi._tcp.local, "QM" question


Frame 59: 75 bytes on wire (600 bits), 75 bytes captured (600 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (query)

No.     Time        Source                Destination           Protocol
Length Info

     60 34.298829   90.17.100.1           224.0.0.251           MDNS    
120    Standard query response A, cache flush 90.17.100.1 PTR, cache flush
ew-lab.local


Frame 60: 120 bytes on wire (960 bits), 120 bytes captured (960 bits)
Ethernet II, Src: Giga-Byt_c4:5e:2c (6c:f0:49:c4:5e:2c), Dst:
IPv4mcast_00:00:fb (01:00:5e:00:00:fb)

Internet Protocol Version 4, Src: 90.17.100.1 (90.17.100.1), Dst:
224.0.0.251 (224.0.0.251)

User Datagram Protocol, Src Port: mdns (5353), Dst Port: mdns (5353)
Domain Name System (response)
      
                    
---------------------------------------        
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Re: Ethernet programming question
Quoted text here. Click to load it

Ok, I had a quick look, but a bit more information is required.

There are 2 IP addresses mentioned: 90.17.100.1 and 90.17.0.1.

What is the IP address of the PC and what is the IP address of the board ?

Also, what subnet mask is in use ?

Assuming that 90.17.0.1 is the target board and 90.17.100.1 is the test PC,
the target board is responding to the ARP lookup request.

However, when you open a telnet connection to the board, the TCP connection
appears to be getting reset by the board.

Have you verified that the image on the target was correctly loaded by
comparing it to the source image ? (Since this is only happening on 1
board out of 500, a faulty flash or other hardware problem now has to
be considered a real possibility.)

I've cut down your log to what I think are the important entries:

Quoted text here. Click to load it

Simon.

--
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world

Re: Ethernet programming question
Quoted text here. Click to load it

Ok, I didn't read the log deeply enough and missed the good board
comparison about 700 lines in.

Even on your good board, it is still issuing connection resets for the
incoming telnet connection until about 18 seconds into the log.

Your bad board log stops after about 15 seconds. Have you tried letting
the connection attempts continue for about a minute or so ?

Simon.

Quoted text here. Click to load it


--
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world

Re: Ethernet programming question
wrote:
Quoted text here. Click to load it

One final question. Both your good and bad boards have the same MAC
address. Is there a gateway involved or are you setting the MAC address
for the Ethernet port on the board at runtime ?

If it's the latter, that's going to stop you from having two different
boards plugged into your Ethernet network at the same time.

Simon.

--
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world

Re: Ethernet programming question
Thanks for the look, Simon.  The 20 seconds is a timeout.  What is
happening is this:


1)  Person running the testing software plugs the board into the test table
 and turns on the board.

2)  In the PC software, presses on-screen button which says "Run test
battery".

3)  The PC software does some preparation, then tries to connect to the
board and send it a packet with a single character which should be echoed
back with a different character (If I remember without going into the
sources, which are not here by the internet connection, it sends "+" and
gets back "$").  It does this only once, and then times out.  

4)  At this point, both the board and the PC software should have a
connection.


There is never a need for more than one address.  It's using Ethernet, but
a local connection, same MAC and IP address for all boards.  They have
another communication bus that is used off of the manufacturing floor
(which get tested as part of the battery of tests) for running the test
software and for application download on the floor ONLY (they are not field
upgradable, without someone coming in with a laptop and a local ethernet to
do it).      

                    
---------------------------------------        
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Re: Ethernet programming question
Quoted text here. Click to load it

Understood. I think we have about reached the limits of what can be
suggested remotely based on the available information, but I do have
one final suggestion.

How long does the board take to finish booting before it's ready to
accept incoming connections ?

If the board is supposed to have finished booting before the tests are
started, then you may want to find out why (in the Wireshark log you
provided) the good board is still rejecting the initial connections
before finally accepting one.

If there's a potential overlap between the board booting and the tests
starting, you could ask the testers to hold off for a extra minute or
so after powerup before starting the tests on the bad board.

Quoted text here. Click to load it

Also understood. You already mentioned the IP address setup previously,
as well as it's temporary nature, but I thought I would just mention the
common MAC address as well just in case you were not aware of it.

If you ever do find the problem on the faulty board, it would be nice if
you could post the answer back to comp.arch.embedded.

Thanks,

Simon.

--
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world

Re: Ethernet programming question
Will do.  So far, I can tell you that replacing SRAM didn't help.      
                    
---------------------------------------        
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