View Full Version : [ubuntu] seting up a router

January 18th, 2011, 12:15 AM
I am trying to setup a router using Ubuntu server 10.10.

I want it to pass everything - including dhcp relay.

I have 2 nics and both work. One is connected as and is the "external" nic. I access the internet via this connection. One is connected as and is connected to a switch with another pc on it.

I have dhcp3relay installed and configured to match the above, pointing to a proper/working dhcp server.

I can ping form the workstation ( to the 1.1 AND to the successfully. But, I cannot ping beyond that. Additionally, dhcp relay is not working.

I have Webmin installed and have enabled (sysctl.conf) packet forwarding. I have also setup 3 rules in iptables via webmin - accept everything - in , out , forward.

I have checked/double checked each setting and restarted the networking and even rebooted.

If I modify the rules to reject on it does so appropriately. If/when I re-enable the accept it works as before - request timed out.

Any suggestions?

Thanks in advance!