"ip route add" doesn't keep changes on network restart
 

I have 2 adapters, one on a private ip, and one on a public ip. Every time my machine reboots or I restart the network adapters, the default route goes back to my private network. I have to manually set it to use the adapter on the public network with

ip route add default via [gateway ip] dev eth0

as soon as i restart anything, it is gone again. How can i make these changes permanent? I put the above line in rc.local to fix it for now but that seems like a silly way to do it, it also makes ntpdate wait forever to time out on startup. Am i missing a step to make it save the changes?

thanks

you've not said what distro you are using, but you'd want to formally set a default gateway in /etc/sysconfig/networks in fedora / redhat etc... that's if you have completely static IP addressing. DHCP should take care of this normally.

Oh, yes i am using redhat.

do i just add a line like
GATEWAY=IP
or is there someplace where i can get a list of variables i can set in the network file?

That'd be the right format AFAIR. but that would normally be automatically entered by using a gui tool e.g. system-config-network. personally i'd just go direct to the file though...

Thanks, that seems to have fixed the issue.