should be gotten from dhcp so does ifdown eth0 / ipup eth0 work ? Jake Colman wrote:
I have a class two NIC firewall. eth0 is my external interface connected to my cablemodem, eth1 is my internal interface connected to my hub. I am using iptables-based firewall rules and using NAT so I can access the internet from all my desktops. Everything is working correctly. The problem is that it only works if I manually set up a default gateway route through the external interface. After I boot the system, I type the following command: route add default gw x.x.x.x where x.x.x.x is the address assigned to my external interface. If I don't do this, I cannot access anything on the internet from any my internal machines. Once I execute this command it all works as expected. I am certain, however, that as a RH 7.2 system, which is what I was before I started incrementally upgrading to FC1 where I am now, I did not need to do this for it to work. How can I get this routing between two NICs to work correctly without manually executing a 'route' command? Please don't tell me to add this command to rc.local. My external IP address is dynamic so it can change between reboots. I need some mechanism that works dynamically. I'm sure that it used to work this way! TIA! ...Jake
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