ADSL Bandwidth Aggregation w/ Multiple Accounts?

kernel_panic writes "Okay, I've been reading up on combining two or more SDSL connections together to give you one big fat pipe, but I haven't seen any references to doing this w/ ADSL. This place even manufactures a nifty little hardware device (ePipe) that combines two WAN ports for the aggregate sum. I've seen the Netopia 7000 Series routers support this capability as well, w/ an add-on card, but all of these places only mention accomplishing this w/ SDSL accounts. I've seen a lot of info on bandwidth load balancing, but I want bandwidth aggregation (inverse multiplexing). Has anyone had any experience doing this kind of thing w/ your Linux/BSD gateway boxen?"

Comments

What exactly do you want?

[photon317]

Inverse Multiplexing would happen at the dsl modem level, not at the ip level. It would require inverse multiplex support at your provider's DSLAM, and you would probably be using multiple lines under a single account.

IMHO the best way for a residential consumer to get more bandwidth (and reliability) is to multi-NAT your home network. Sign up for a couple of DSL lines (maybe pretend to be stupid enough that you want a second DSL for another room in the house or something) and perhaps a Cable Modem hokoup for redundancy and a bit more bandwidth.

Into the ethernet jacks of each of the 3 or so modems, plug a direct crossover cable to seperate ethernet ports on your NAT/Firewall/Router box. A Sun Ultra 5 running OpenBSD with a quad fast ethernet card would work great.

Have your NAT box run three dhcp client instances to get IPs on all three interfaces, and have it run NAT for a private network on the back.

The last remaining part of the puzzle is having the gateway loadbalance the three available default routes per connection stream, either round-robin or by utilization.

Hopefully someone will reply with a pre-shink-wrapped answer to that part, and preferably on OpenBSD since I already mentioned it, but I guess ultrapenguin could work too :)