how to configure static route on RHEL 3 AS
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From: The Derfer on 18 Aug 2009 15:14 I have a (very) large amount of data to move through a Gigabit connection shortly. I want to use a newly-configured gigabit PCI-X card in a Dell server to accomplish this. The other interfaces are 100 Mbps. If I want to add a route (static route) to force outgoing packets that are destined for a particular host to use that interface (eth3 on this host) then how do I do that? System is RedHat Enterprise Linux 3AS. I suspect this involved the "add route default" command or whatever the syntax is -- I did it for Solaris years ago but don't remember exactly how. $ Linux host1.localdomain 2.4.21-57.ELhugemem #1 SMP Fri Jun 13 00:09:04 EDT 2008 i686 i686 i386 GNU/Linux $ ifconfig eth3 eth3 Link encap:Ethernet HWaddr 00:0A:5E:7A:E7:33 inet addr:10.156.30.176 Bcast:10.156.30.255 Mask: 255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:619971 errors:0 dropped:0 overruns:0 frame:0 TX packets:4 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:44019924 (41.9 Mb) TX bytes:256 (256.0 b) Interrupt:24 Thanks in advance.
From: Luuk on 18 Aug 2009 15:24 The Derfer schreef: > I have a (very) large amount of data to move through a Gigabit > connection > shortly. I want to use a newly-configured gigabit PCI-X card in a > Dell > server to accomplish this. The other interfaces are 100 Mbps. > > If I want to add a route (static route) to force outgoing packets > that > are destined for a particular host to use that interface (eth3 on this > host) > then how do I do that? System is RedHat Enterprise Linux 3AS. > I suspect this involved the "add route default" command or whatever > the syntax is -- I did it for Solaris years ago but don't remember > exactly how. > > > $ Linux host1.localdomain 2.4.21-57.ELhugemem #1 SMP Fri Jun 13 > 00:09:04 EDT 2008 i686 i686 i386 GNU/Linux > > > $ ifconfig eth3 > eth3 Link encap:Ethernet HWaddr 00:0A:5E:7A:E7:33 > inet addr:10.156.30.176 Bcast:10.156.30.255 Mask: > 255.255.255.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:619971 errors:0 dropped:0 overruns:0 frame:0 > TX packets:4 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:44019924 (41.9 Mb) TX bytes:256 (256.0 b) > Interrupt:24 > > > Thanks in advance. > man route there are some examples in there too..... ;-) -- Luuk
From: Sidney Lambe on 18 Aug 2009 16:59 The Derfer <derf109(a)gmail.com> wrote: > I have a (very) large amount of data to move through a Gigabit > connection > shortly. I want to use a newly-configured gigabit PCI-X card in a > Dell > server to accomplish this. The other interfaces are 100 Mbps. > > If I want to add a route (static route) to force outgoing packets > that > are destined for a particular host to use that interface (eth3 on this > host) > then how do I do that? System is RedHat Enterprise Linux 3AS. > I suspect this involved the "add route default" command or whatever > the syntax is -- I did it for Solaris years ago but don't remember > exactly how. > > > $ Linux host1.localdomain 2.4.21-57.ELhugemem #1 SMP Fri Jun 13 > 00:09:04 EDT 2008 i686 i686 i386 GNU/Linux > > > $ ifconfig eth3 > eth3 Link encap:Ethernet HWaddr 00:0A:5E:7A:E7:33 > inet addr:10.156.30.176 Bcast:10.156.30.255 Mask: > 255.255.255.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:619971 errors:0 dropped:0 overruns:0 frame:0 > TX packets:4 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:44019924 (41.9 Mb) TX bytes:256 (256.0 b) > Interrupt:24 > > > Thanks in advance. > Not sure exactly. This is what I do for lo: /sbin/route add -net 127.0.0.0 netmask 255.0.0.0 dev lo Hope this helps, Sid
From: Allen Kistler on 18 Aug 2009 17:19 The Derfer wrote: > I have a (very) large amount of data to move through a Gigabit > connection > shortly. I want to use a newly-configured gigabit PCI-X card in a > Dell > server to accomplish this. The other interfaces are 100 Mbps. > > If I want to add a route (static route) to force outgoing packets > that > are destined for a particular host to use that interface (eth3 on this > host) > then how do I do that? System is RedHat Enterprise Linux 3AS. > I suspect this involved the "add route default" command or whatever > the syntax is -- I did it for Solaris years ago but don't remember > exactly how. > > [snip] > > $ ifconfig eth3 > > [snip] You'll probably want to make the route permanent across reboots and interface bounces. RH changed their convention for route config files, but I believe the following convention applies to RHEL3. (It's been a while.) Create the file /etc/sysconfig/network-scripts/route-eth3 The contents should be ADDRESS0=<whatever-host-address> NETMASK0=255.255.255.255 GATEWAY0=<gateway-if-remote-or-eth3-addr-if-local> If you want other routes, then the next set would use 1 instead of 0, etc., for as many as you need. You must start at 0. You must not skip any numbers. You can specify whole networks, but you asked about just one host, so the example mask is all 1s. Then "ifdown eth3 ; ifup eth3" will handle running "route" (or "ip route," I forget when that changed, too) for you, plus the config is applied automatically on reboot.
From: A_A_K on 20 Aug 2009 13:10
go to root mode route add -net <network ip>/<subnet mask> gw <gateway ip address> to verify the route give command "route" |