Static Routes in RH73 Linux
Updated March 06, 2003
Created March 06, 2003
Autogenerated Site Map
Search this Site!:
(Other routing page: routes.html)
Here's how to set up Red Hat 7.3 /etc/sysconfig/static-routes file, I mention this here because this had me halted for longer than I wanted to be stuck trying to figure out how exactly this file works:
eth0 v 172.16.0.1
eth1 v 16.1.224.98
eth1 v default gw 16.1.224.1
So this system has 2 static IP addresses, 172.16.0.1 and 16.1.224.98. Looking at my route table I have:
[root@linux root]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
16.1.224.0 0.0.0.0 255.255.252.0 U 40 0 0 eth1
172.16.0.0 0.0.0.0 255.255.0.0 U 40 0 0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 40 0 0 lo
[root@linux root]#
So I have my loopback and the two networks, but I don't have any host lines (UH) for the static ip addresses themselves, nor do I have a default gateway (UG), so adding the /etc/sysconfig/static-routes and restarting the networking (service network restart) I then get the following correct route information:
[root@linux root]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
172.16.0.1 0.0.0.0 255.255.255.255 UH 40 0 0 eth0
16.1.224.98 0.0.0.0 255.255.255.255 UH 40 0 0 eth1
16.1.224.0 0.0.0.0 255.255.252.0 U 40 0 0 eth1
172.16.0.0 0.0.0.0 255.255.0.0 U 40 0 0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 40 0 0 lo
0.0.0.0 16.1.224.1 0.0.0.0 UG 40 0 0 eth1
[root@linux root]#
Search this Site!:
Homepage: http://www.cpqlinux.com
Site Map: http://www.cpqlinux.com/sitemap.html