Load balancing two ADSL routers - any recommendations?

[David Curtis]

On Fri, 30 Oct 2009 14:00:03 +0000
Chris G <cl at isbd.net> wrote:

> I have two phone lines and two ADSL routers running with different
> ISPs. These provide internet access for a small network of (mostly)
> Ubuntu linux machines.
> 
> I am setting up a small 'server' machine which, among other things, I
> would like to handle the internet access by providing load sharing
> and failover.  I've found various bits and pieces of information about
> doing it myself (scripts using 'nexthop' and 'weight' in ip commands,
> etc.) but I was wondering if there are any ready made applications
> which would make things easier for me.
> 
> I have found 'balance' but it seems more oriented towards balancing
> load on multiple servers in my LAN rather than balancing load between
> two routers linking to the internet.
> 
> Does anyone have any suggestions for ready made load balancing
> software for Ubuntu?

I'm not sure if there are any front ends and/or routing packages that
make this easy, but here is the pertinent section of the Linux Advanced
Routing & Traffic Control Howto:

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

HTH

Dave