From: "Mike Lieberman" <Mike@netwright.net> Date: Mon, 26 Jul 1999 10:03:30 -0600
Neither plan is good. Please remember that cable modems are broadcastnetworks. Your ISP, @Home, uses that Class A as subnetted Class C's for goodreason. If @Home is unwilling to assign you two addresses in the same subnet (I assume you asked, right?) there are a number of two to deal with this. Option 1: Two NIC's. Add a second NIC in each computer and assign a ambiguous (private) IP network. The classic is 10.0.0.0. Look at RFC ftp://ftp.internic.net/policy/rfc1597.txt Option 2: Set one box up as a Proxy Server That box gets two NIC's, the other one. You use ONE IP address. Your ISP sees only one computer. Use the private IP behind the firewall.
Well, yeah, I too know what The Right Thing is. Unfortunately the machine that has to be the gateway/proxy server switches randomly between Linux and Windows throughout the day for a variety of reasons. Yes, I know about WinGate, but the whole thing would be such a horrific kludge that I refuse even to contemplate it. If/when I get a new box (maybe an old Sparc from work) I can set it up as a dedicated gateway and then my problems would be over (er.. this particular set of problems, that is).
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