Thanks for the reply,
Part of the problem is solved. I rebooted my firewall last night. Some of the issues seemed to be the firewall not passing to the 12.1 subnet through the static route setup for it. Also found that i had a bad interfaces file on the 12.1 Linux router and that seemed to be causing some of the network issues?, not sure, but when i fixed it and restarted networking, i can now see the other subnets in my network. this was after i had rebooted my firewall and was still having the issue of network unreachable.
the problem now is that when i ping from a client on the 12.1 subnet, the 1.1 subnet replies and all is good. however when i ping my other subnets or try to go to internet, i get request timed out. so it sees the other subnets, but can't connect to them? i tried making the timeout on the ping 5 seconds, but it always replies with request timed out.
the other issue resolved was the bad gateway address. i had the scope option wrong on the dhcp server. once i fixed that the correct 12.1 gateway address showed up on the client in that 12.1 subnet.
i checked the sysctl.conf and the ip forwarding is enabled on boot.
thanks for the help!
Last edited by terryball; 11-07-2012 at 09:27 AM.