Re: [44net] Trouble creating a Gateway into 44net

It would be called "forwarding" or "routing". Anyway, I was thinking about your problem last night and I have a question and a fifth option: - WHY is your brother's computer on the DMZ segment? Is there a specific reason? If his computer is serving standard traffic like HTTP/HTTPS, DNS, SMTP, whatever, all of those things can be forwarded via your ISP provided router using a technology called "port forwarding. At this point, you could put YOUR computer on the DMZ segment and make things simpler. The only reason I can think of that your brother would want to keep his machine on the DMZ port is for some other specific GAMING reason. PC computer games that aren't NAT friendly are pretty rare these days but they still exist If you rather keep your brother's computer on the DMZ port, I would recommend the final option at the end of Rob's email to keep things simple. A few things are going to be required per the Ubuntu HOWTO at http://wiki.ampr.org/wiki/Ubuntu_Linux_Gateway_Example : - You'll ideally want a static IP from your ISP - it's not absolutely required and if you don't have one, you'll want to setup a DynamicDNS system on the router from your ISP. Setting that up is outside the scope of this AMPR list and will be specific to your particular ISP supported router As for the actual IPENCAP forwarding on your brother's computer, it's mostly strait forward. To make your Internet searches more successful if you have initial questions, do a search for "iptables gre protocol forwarding". GRE is another IP protocol similar to IPIP but far more common and thus you'll get more hits. From that search list, you'll find posts like: http://www.linuxquestions.org/questions/linux-networking-3/port-forward-gre… and more to the point https://lists.debian.org/debian-firewall/2004/04/msg00103.html In that second URL, you'll want to substitute protocol 47 for protocol 4. --David KI6ZHD