Comments on: Configure Static Routes In Debian or Red Hat Enterprise Linux

By: Yoni

Yoni — Sun, 27 Nov 2011 09:38:04 +0000

Thx for the tutorial

By: Barry

Barry — Fri, 22 Jul 2011 07:14:34 +0000

Got answer from: http://www.cyberciti.biz/faq/redhat-centos-fedora-linux-static-routing/

Thanks nixCraft

By: Barry

Barry — Fri, 22 Jul 2011 03:12:06 +0000

Hi,
My server ABC has got two nics connected to different subnets. How do I add static route to send traffic to particular interface?

For example, I have 5 another servers with ip-address 10.216.98.XX and all have their own gateway because they all are at different locations. Now I want to ass route which sends/receive all traffic from these servers to eth0 on my ABC server.

Thanks in advance.

By: Anthony

Anthony — Thu, 24 Mar 2011 23:15:35 +0000

does 224.0.0.0/4 via IP dev eth0 in the route-eth0 script route all mutlicast addresses? For example I need to multicast on 224 and 235 addresses …if not..how would I enable it in static routing in Red Hat Linux?

By: Zarg

Zarg — Thu, 24 Mar 2011 21:14:46 +0000

I done it in a way. I have a crontab every minute do something like
ping -c1 my_adress.dyndns.org | grep from | cut -d’ ‘ -f 4 | cut -d’:’ -f1′ > /tmp/new_ip
diff /tmp/old_ip /tmp/new_IP && route del default gw 192.168.1.254 eth0 route add -net `echo /tmp/new_ip` -mask 255.255.255.0 &&cat /tmp/old_ip > /tmp/old_ip && route add default gw 192.168.1.254 eth0 route add -net `echo /tmp/new_ip` -mask 255.255.255.0

By: rockysyas

rockysyas — Thu, 24 Mar 2011 03:40:30 +0000

If you read /etc/init.d/network (rhel),you can find this:
# 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
so, /etc/sysconfig/static-routes is your best chose!
vi /etc/sysconfig/static-routes
any -net 192.168.1.0 netmask 255.255.255.0 gw 192.168.1.254
any -host 192.168.100.1 gw 192.168.1.254
Thanks!

By: Stephen

Stephen — Tue, 15 Feb 2011 08:25:52 +0000

Can’t be done. Otherwise your host would have to resolve the dyndns name each time it routed a packet !!

Find out what range your ISP is allocating the dyndns host within and add a route for that.

By: Zarg

Zarg — Mon, 20 Dec 2010 17:44:43 +0000

Hi
I would like to know how I can add permanently a dyndns host in my routing table(I have two network interfaces…). I have some hosts with fixed ip addresses in my /etc/sysconfig/network-scripts/route-eth0 that I have added with
1.2.3.4/32 via 192.168.1.1
but if I can not ad in this file
myhost.dyndns.org/32 via 192.168.1.1

Thank you

By: wiqar.hussain

wiqar.hussain — Mon, 22 Nov 2010 00:53:02 +0000

i like the redhat and i trying to learn the redhat window so pleas help me in this ok thanks

By: Joel

Joel — Tue, 31 Aug 2010 14:56:41 +0000

How command can I use to list the multicast coming out of my redhat server?

By: john

john — Mon, 29 Mar 2010 14:04:21 +0000

hey guys ,,
I have a problem, I’m trying to configure a Debian board (Olimex) to do the routing but all my trys failed even though it seems my network is connected well

I can ping from my pc the both interfaces which the board are connected to but the problem I can’t ping any IP outside ?!?!?!

anyone can help and let me know what missing ?!!!!!

By: Vivek Gite

Vivek Gite — Fri, 22 Jan 2010 18:20:22 +0000

@Stan: create /etc/ppp/ip-up.d/route-traffic and add your route command. For example, I router 10.0.0.0/8 via ppp0 so my file is as follows:

#!/bin/sh
route add -net 10.0.0.0/8 dev ppp0
Save and close the file. And set permissions:
chmod +x /etc/ppp/ip-up.d/route-traffic

HTH

By: Stan

Stan — Fri, 22 Jan 2010 18:00:05 +0000

I have a pptp connection and have added the following in /etc/sysconfig/network-scripts/route-ppp0

ADDRESS0=172.16.0.0
GATEWAY0=192.168.10.1
NETMASK0=255.255.0.0
ADDRESS1=192.168.0.251
GATEWAY1=192.168.10.50
NETMASK1=255.255.255.0

when the tunnel is established subnet 172.16.0.0/16 is reachable but not 192.168.0.251 as it tries to go out the def gw

192.168.0.251 become reachable if i manually add by (but looses route if pptp drops) :

route add 192.168.0.251 gw 192.168.10.1

I must be messing something up here….anyone can shed light pls ? :)

By: Soundar

Soundar — Mon, 28 Dec 2009 07:01:34 +0000

thanks, bydefualt route-eth0 file will not be there, need to be created

By: Catalinux

Catalinux — Tue, 08 Sep 2009 21:19:37 +0000

Thank’s, is very pretty info.

By: Alan

Alan — Mon, 05 Jan 2009 05:51:47 +0000

Hi everyone,

Can you help me with this, how to configure Red Hat Linux to work with a load balancer router? I’m not familiar with the Red Hat Linux. Thanks.

By: sql

sql — Wed, 17 Sep 2008 10:17:19 +0000

thank you!

By: Stuart Gathman

Stuart Gathman — Wed, 03 Sep 2008 18:21:50 +0000

If i have to add static route in /etc/sysconfig/network-scripts/static-route file then how to do that.

/etc/sysconfig/network-scripts/static-routes

eth0 host 1.2.3.4 eth0 net 192.168.2.0 netmask 255.255.255.0 gw 192.168.9.6
The first line provide a host route to an interface for proxy arp.
The second line provides a VPN gateway.

By: Proglot

Proglot — Wed, 28 May 2008 09:08:30 +0000

by the way to see all you routes use
ip route list table all
command
for more information issue
ip route help
for example if you have a 2 internet lines and want to do load balance route then do not set default gateway in configuration, but add in one of the route files (let’s say /etc/sysconfig/network-scripts/route-ppp1) something like:
default dev ppp0 nexthop ppp1

By: Proglot

Proglot — Wed, 28 May 2008 08:44:30 +0000

Actually script recognize 2 formats of route- files. The older one is just continued command line pararameters for ‘ip route add’ command and new one use
ADDRESS[0-9] GATEWAY[0-9] NETMASK[0-9]
triples
The simplest way is to figure out what ‘ip’ command will do a trick and put it without ‘ip route add’ into /etc/sysconfig/network-scripts/route-eth0
i.e.
224.0.0.0/4 dev eth1
or
to multicast 224.0.0.0/4 dev eth1

192.168.55.0/24 via 192.168.1.254