On 5/28/2014 12:00 PM, Michael Hennebry wrote:
I want the second computer to not have its own global IP address. It will at least occasionally run Windows. I'd prefer not to assume that Windows will not try to fetch an IP address behind my back.
what do you mean by 'global IP address' ? are you on a LAN behind some sort of firewall/gateway, or are these systems directly connected to the public internet ?
To do what you describe, you'll need to configure the 2nd port on the primary system to be a private IP like 192.168.0.1, and implement IP Masquerade via iptables. You'll also want to configure a DHCP server on this second port so any clients connected to it will be offered IP's in that subnet. This will make that primary system act like a SOHO 'router' (I use quotes, because that sort of router is really a internet gateway appliance)
note, btw, 'occasionally running windows' will be a huge pain. If occasional means a few times a month, nearly every time you boot up Windows, you'll be installing windows updates and rebooting. and flash and java and acrobat and all the rest of it.....