Load balancing two ADSL routers - any recommendations?

[CLIFFORD ILKAY]

Chris G 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.

Hello Chris,

Others have suggested various options like pfsense and ebox and you've 
rejected them because they would more or less take over your machine. 
Based on my experience, I'd recommend that you separate the 
routing/firewalling from the server not because the server can't handle 
it but because quite often, you have different upgrade cycles on those 
things. If you don't want two physical machines, run the server in a 
virtual machine and let the physical machine, or another virtual 
machine, act as the router/firewall. Complex networking like you have in 
mind in a virtual machine is probably more challenging but it's not 
impossible, depending on the virtualization technology you employ.
-- 
Regards,

Clifford Ilkay
Dinamis
1419-3266 Yonge St.
Toronto, ON
Canada  M4N 3P6

<http://dinamis.com>
+1 416-410-3326