permanently add static route

 
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Operating Systems Linux Red Hat permanently add static route
# 1  
Old 04-16-2009
permanently add static route

I have a machine with an interface that has two different addresses on CentOS 5

eth0: 10.20.21.77
eth0:1 141.218.1.221

If I issue this command I get the result I'm looking for.
/sbin/route add -net 141.218.1.0 netmask 255.255.255.0 gw 10.20.21.77

ip route show dev eth0
141.218.1.0/24 via 10.20.21.77 scope link
141.218.1.0/24 proto kernel scope link src 141.218.1.221
10.20.21.0/24 proto kernel scope link src 10.20.21.221
169.254.0.0/16 scope link
default via 10.20.21.1

Now I reboot the machine and the route goes away, I've tried creating a file in /etc/sysconfig/network-scripts/route-eth0 that contains
141.218.1.0/24 via 10.20.21.77

Also tried:
141.218.1.0/24 via 10.20.21.77 dev eth0


On a reboot it looks like this...
ip route show dev eth0
141.218.1.0/24 proto kernel scope link src 141.218.1.221
10.20.21.0/24 proto kernel scope link src 10.20.21.77
169.254.0.0/16 scope link
default via 10.20.21.1

Running ifup-routes by hand results with:
./ifup-routes eth0
RTNETLINK answers: File exists



Thanks for any help.

Last edited by beaker457; 04-16-2009 at 11:52 AM..
# 2  
Old 04-17-2009
netstat -nr

what is the output of that?
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