there is one simple matter I can't figure out. If I connect an ethernet enabled micro to my home network and assign it an IP address I can access its web server from my PC. But, my firewall has it's own IP address assigned from my ISP...How do I access the micro from outside, somewhere else on the internet? (I tried searching for the answer but came up with a million unhelpful links)
Thanks, Max
Hi Max,
The fact that its a micro is irrelevant. This is no different than any other networkable device inside your firewall.
In order for the device to see out you have to enable your firewall to let packets out and do some masquerading (assuming you only have one IP number). So every computer on your internal network will have the same IP number as your firewall (this is assuming that the computer that connects to the internet and the firewall are one and the same--this doesn't have to be the case).
In order to receive packets you need to configure the firewall to forward packets to certain ports to your device.
Look for home networking how-to's. There are lots available for Linux and are useful even if you're not using Linux to understand how it all works.
Hope that helps.
James.
thank you to each of the responders, I learnt something from each post. I have a D-Link router and I ended up using the Virtual Server capability. I set up a new entry that tied my private IP address and private port (80) to a public port 1234. And, it works! My IP address stays the same (at least for a while at a time) but I am going to play around with the dynamic name part as mentioned by Robert. Thanks again... M
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