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Here is my route -n output:

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface   U     0      0        0 virbr0

And if I try to add a static route by this command:

route add -net netmask gw

I get the following output:

SIOCADDRT: No such process

Why that? Can anybody explain my the concept of adding static routes in linux.

If I also have a route-eth0 file under the /etc/sysconfig/network-scripts/ directory, with this line in it: via, no effect is achieved after I restart the network.

So, can anybody give me some explanations, links or related stuff to read on this?

share|improve this question
# ip route add xxx.xxx.xxx.0/ via xxx.yyy.zzz.qqq

Is also valid syntax, but methinks that the error you are getting is a fouled up way of telling you:

"cannot route through, because i don't know how to get to in the first place."

Note that is in the network.

share|improve this answer
This answer is plausible, but I'd need artaxerxe to show his interface table (ifconfig -a) to be sure. – Warren Young Jan 17 '12 at 0:57
Look, if you had an (up) interface already configured on, you would not need to manually add routes, because it would already be there (ip route show) as a part of the interface activation process. "ifconfig -a", of course, should tell the same story, as should "ip addr show". What is preventing you from running these commands? – Alien Life Form Jan 17 '12 at 9:34

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