[CentOS] Configuring source-specific routing
Michael Mol
mikemol at gmail.com
Sat May 4 01:54:06 UTC 2013
On 05/03/2013 06:05 PM, Rob Townley wrote:
> Michael, very frustrating that so much noise for a very simple request. I
> set up multi source routing in 5.3 or so and was astounded at all the
> negativity on this list and that it could not be done. It will take
> forever to read the noise in this thread alone. Some said you have to use
> DHCP.... i could go on.
>
> Do not trust that ping -I will work how you would think. Must specify an
> IP address, not eth0, not eth1.
> ping -I 10.0.0.1 8.8.8.8
Yup. Sans the obfuscated IP address, that's exactly what I tested.
>
> This really is just a few lines per interface.
>
> Learn by changing the /etc/sysconfig/network-scripts/ifup-route shell
> scripts to add logging.
> echo out variables.
I tried adding "set -x" to them. :)
>
> There is no need to get iptables involved at all unless doing something
> very special.
>
> i did not want to setup quagga or some form of dynamic routing deamon
> because of security concerns. i wanted static IP addresses communicating
> to the ISP on static routes. It is pretty simple. Maybe i can hook up my
> laptop to 3G and WiFi and Cat6 and make sure i get it working. Please
> remember to use IP addresses, not names for ping testing. Scrutinize ping
> results.
>
> ping -I 10.0.0.1 8.8.8.8
Yeah, I don't see a use for quagga at this time.
[snip]
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