Re: Linux and Multiple NICs with Multiple Default Gateways

[Paul Nicholas McCubbins <nick77@dtnspeed.net>]

On Fri, 2006-06-23 at 14:58 -0500, Scott Smith wrote:
> I've used Linux with multiple NICs in the past, however only as a FW 
> w/NAT or a Server with inside and outside IPs.
> 
> Now I have my first instance where I have a machine with multiple NICs, 
> eth0 and eth1, and I want to configure both for Internet facing IPs.  
> I.e. Load Balancing.  However, my current issue is that Linux doesn't 
> like multiple Default Gateways.  If I configure it in 
> /etc/sysconfig/network-scripts/ifcfg-eth0 and eth1 with the GATEWAY= 
> command, eth1 over writes eth0's DG, and therefore only eth1 has the 
> ability to get off the local LAN.
> 
> I've tried the 'route' command as well, and have the same results.  I 
> can see both DG's with the route statement, but only the last one 
> entered works.
> 
> How do I configure the machine so that Both NICs can be seen externally?

Can you use the kernel bonding driver?

http://www.kernel.org/pub/linux/kernel/people/marcelo/linux-2.4/Documentation/networking/bonding.txt

-- 
Paul Nicholas McCubbins <nick77@dtnspeed.net>


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