Static routing is the term used to refer to the manual method used to set up routing. An administrator enters routes into the router using configuration commands. This method has the advantage of being predictable, and simple to set up. It is easy to manage in small networks but does not scale well.
Question: How can I save static routes I set up in my Fedora/RedHat/CentOS Linux after I reboot server?
Answer: In Fedora Linux (or RedHat, CentOS) you can set up static routes for certain network interface (for example eth1) by editing file /etc/sysconfig/network-scripts/route-eth1.
For example, you have to save static route added by the following command:
route add -net 192.168.0.0 netmask 255.255.255.0 gw 192.168.100.1 dev eth1
To do it, just add the following line to /etc/sysconfig/network-scripts/route-eth1:
ADDRESS0=192.168.0.0
NETMASK0=255.255.255.0
GATEWAY0=192.168.100.1
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hey... nice tip... keep those comming :)
Thank you, confiq. Keep commenting! ;)
The alternate way of doing it is to put the routes in /etc/sysconfig/static-routes. So the above route would like this like in the static-routes file:
any net 192.168.0.0 netmask 255.255.255.0 gw 192.168.100.1
Where any is specified above you can also set specific interfaces (such as eth1).
Thanks for the tip, daveg!
Here is the part
/etc/init.d/interfacescode:# Add non interface-specific static-routes.
if [ -f /etc/sysconfig/static-routes ]; then
grep "^any" /etc/sysconfig/static-routes | while read ignore args ; do
/sbin/route add -$args
done
fi
Looks like any must be at the beginning of each line in
/etc/sysconfig/static-routes. At the same time Fedora is able to determine interface name packet should be routed through (like eth1) by destination IP. :)Hey, cool tips. I'll buy a bottle of beer to that man from that chat who told me to visit your site :)
/usr/share/doc/initscripts-${VERSION}/sysconfig.txt is a good place to look for these things as well