Ethernet programming question

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

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
Reply to
Simon Clubley

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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

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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.

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Reply to
Lanarcam

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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sburck

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

Reply to
Lanarcam

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
Reply to
Simon Clubley

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
Reply to
Simon Clubley

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

-- Les Cargill

Reply to
Les Cargill

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:

  1. 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.

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sburck

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

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 Win=65535 Len=0 MSS=1460 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

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 Win=65535 Len=0 MSS=1460 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 Win=65535 Len=0 MSS=1460 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

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

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

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

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

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

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

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 Win=65535 Len=0 MSS=1460 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

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 Win=65535 Len=0 MSS=1460 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 Win=65535 Len=0 MSS=1460 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

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

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 Win=65535 Len=0 MSS=1460 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 Win=65535 Len=0 MSS=1460 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 Win=65535 Len=0 MSS=1460 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

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

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

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

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

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 Win=65535 Len=0 MSS=1460 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

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 Win=65535 Len=0 MSS=1460 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 Win=65535 Len=0 MSS=1460 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

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

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

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

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

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

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 Win=65535 Len=0 MSS=1460 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 Win=65535 Len=0 MSS=1460 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 Win=65535 Len=0 MSS=1460 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 Win=65535 Len=0 MSS=1460 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 Win=65535 Len=0 MSS=1460 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] Seq=2083977669 Ack=1 Win=8192 Len=0 MSS=1460

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 Ack=2083977670 Win=65535 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] Seq=2083977670 Ack=2 Win=8192 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 Ack=2083977671 Win=65534 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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Reply to
sburck

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:

Simon.

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

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.

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

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
Reply to
Simon Clubley

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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Reply to
sburck

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.

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
Reply to
Simon Clubley

Will do. So far, I can tell you that replacing SRAM didn't help.

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Reply to
sburck

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