> > Well, it's seams to be a little bit more complicated than > > I thought to loadbalance Internat connection between 2 (different) ISP > > lines ... > > > > Here is my problem: > > > > Basically, I need to connect my office to 2 differents ISP (different > > gateways and different DNS ). My linux box is a 3 NICs Box. The problem > > is that, for the first ISP, I don't have static Addresses. > > > > So, I would like to loadbalance, "route" and NAT all my internals Addresses > > through thoses 2 ISP except for some addresses and some port numbers > > which will use > > only the ISP2. > > have a look at: > http://linux-ip.net/html/adv-multi-internet.html > I like this article because basically it brings out the issues of having dual internet connects. I work on it for a few months to realized these issues. I do not have a theory paper to present, however, I have a different IMPLEMENTATION of dual internet connections, it is mostly based on netfilter capabilities ( rather than route-based ), it can handle all sorts of combinations :- 1. Static or non-static external IPs. 2. Select outbound based on services. 3. Select outbound based on aggregate bandwidth. 4. Inbound traffic via multiple connections. And it fits into a diskette. :-) Check out the implementation at :- http://www.geocities.com/mctiew/ffw/dual.htm
