[CentOS] iproute2 custom tables and rules the CentOS way...

[Ray Van Dolson]

On Mon, Jan 24, 2011 at 04:28:16PM -0600, Barry Brimer wrote:
> Quoting Ray Van Dolson <rayvd at bludgeon.org>:
> 
> > Hi all;
> >
> > I have a custom iproute2 table and a few rules to go along with it
> > (CentOS 5) -- I have added the table to /etc/iproute2/rt_tables.
> >
> > if-up and friends doesn't seem to handle this real gracefully.  How are
> > those of you out there doing something similar managing this
> > customization?
> >
> > I don't really want to muck with /etc/init.d/network or the if-up
> > scripts to avoid breaking upgrades.  rc.local my best bet?
> 
> I have a file named /etc/sysconfig/network-scripts/rule-eth0 which contains my
> rules for eth0 and a file named /etc/sysconfig/network-scripts/route-eth0 which
> are read by /etc/sysconfig/network-scripts/ifdown-routes and
> /etc/sysconfig/network-scripts/ifup-routes.
> 
> The contents of my /etc/sysconfig/network-scripts/rule-eth0 is:
> from 10.X.X.X/24 table testtable
> 
> The contents of my /etc/sysconfig/network-scripts/route-eth0 is:
> default via 10.X.X.1 table testtable
> 10.X.X.0/24 dev eth0 table testtable
> 127.0.0.0/8 dev lo table testtable
> 
> For completeness, I have the following in /etc/iproute2/rt_tables:
> 100 testtable
> 
> There is no modification of /etc/init.d/network or any of the
> /etc/sysconfig/network-scripts/if* files.
> 
> Hope this helps.
> 
> Barry

Many thanks Barry.

Ray