How to distribute two Internet?

Question

iptables

Actually, everything is described in the picture, in which direction to google, poke your finger please ..

Answer 1

habrahabr.ru/post/108690

Answer 2

I can advise you to use the Ideco ICS internet gateway. Get a lot of different services and the possibility of flexible customization. The choice of an Internet connection for each client is configured very simply, as well as the possibility of duplicating channels when one of them breaks. Up to 10 users can use the free version.

Answer 3

Oh, at one time I worked on 4 ADSL channels, in fact, PPPeE is used there, a relative of L2tp
, in fact, the problem is that the question you are looking for is poorly described even in the RFC.
In my case, there was a problem in prioritizing work in the broadcast range with finding the appropriate DSL AC server. (channels were substituted randomly).
Establishing an explicit session with the desired AC server will be difficult because they are all in the broadcaster and whoever is first is right.
PADI works outside tcp \ ip, respectively, PADO too, the easiest way is to physically delimit the broadcaster.
Of course, there are solutions, but all of them are rather inelegant and require iron.
In my case, everything was even sadder, the provider was the same on all channels and easily accepted logins and passwords ;(
The easiest way that can be done in test conditions
Install 2 managed routers to get rid of the broadcaster by means of establishing channels in nat, but there everything is already nowhere easier.
each modem grabs its own channel without seeing the others.
And you collect all this crap already with a router.
Not very elegant, but it will work.
As for the router itself, pfsense, or kerio firewall, whichever you like better.