On Wed, Feb 23, 2011 at 12:48:45PM +0300, Rocco Radisch <> IT-Doc24 Ltd wrote:
> The answer is pretty simple. You cannot have multiple default
> gateways.

You can't have multiple *default* gateways, but you can have multiple
gateways.  You have to setup multiple routing tables.

http://lartc.org/howto/lartc.rpdb.multiple-links.html

> On 23/02/2011 11:19 AM, Richard Zulu wrote:
> >Well,
> >
> >The internal interface has a private I.P address, with a default
> >gateway of something like 172.16.0.1 and a subnet of /16
> >
> >The external interfaces have Public I.Ps, with their default
> >gateway having public I.P.

Really?  Are you going to use that as a webserver?  The link I provided
above assumes that you are balancing outbound connections.

You may instead want to read:
http://linux-ip.net/html/adv-multi-internet.html

> >
> >@Collins, with the internal interface up, the internal interface
> >has it's default route pointing to it's default gateway,
> >172.16.0.1

You shouldn't need a gateway for the internal systems.

> >
> >And the external interfaces also points to their own default gateway.
> >

I'm afraid I don't understand what you mean by that.

regards,
dan carpenter
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