I currently have 2 8Mb dsl circuits with 2 wireless NetGear router, does anyone know of a way to 'bundle' the two connections to form 16Mb or even use the second as a failover.?

I have previously tried this with 2 Cisco 1721's, a single 1721 with 2 WIC's and no joy. Couldn't even get the 1721 to use the secondary circuit for failover.

If all else fails even using the second circuit as a failover would be good, tried to do this with multiple gateways and differing metrics in XP Pro and it's a no go. With a higher metric on the second route and the first un-available it still doesn't use it :(

I have also heard that NetScreen firewalls allow this sort of functionality, anyone used these for this purpose?

Any clues?

Failover should be possible from the client side, but any form of "ADSL channel bonding" which would enable you to split a single traffic stream (eg TCP socket) across the two channels would require support from your ISP.

Failover should be possible from the client side, but any form of "ADSL channel bonding" which would enable you to split a single traffic stream (eg TCP socket) across the two channels would require support from your ISP.

The problem is that the circuits are BT so although I could bundle them at exchange level I won't be able to until they are LLU enabled on the exchange and I migrate my lines accross :(

I know failover 'should' be possible but I've found it to be unusable in that even when set-up and tested it doesn't work. I have to manually switch gateways on the machines to have it work :(

I suppose a managed switch with configuring them in a form of VRRP would form a VLAN with an IP which could be used on both machines. This would then allow the switch to use whichever router is up .... Hmmm

there's a way of doing it, but you won't get 16mbit throughput.

when you send out data, the packets will be routed to either/or, not split into both

you're gonna need a good software router, or very high spec hardware one. the software one would be cheaper (if you've got a spare PC)

Will this do the trick?

Broadbandbuyer.co.uk | NETWalker Agile 200 High Performance Load Balancer Specification

Needs a couple of ethernet ADSL modems to work.

Nope, it's for ethernet presentation so either WEES or LES services :(

Why couldn't you use two seperate ADSL-Ethernet modems with it (getting a bit expensive though!)

Why couldn't you use two seperate ADSL-Ethernet modems with it (getting a bit expensive though!)

I could do I guess, I currently have a spare Cisco Catalyst 3750G under my desk though so I could use that to do the same thing for nothing Bit of a beast though

It is certainly the closest I have seen to a simple device to offer the functionality, forgot to say thanks to the OP too, didn't mean to seem ungrateful

I currently have a spare Cisco Catalyst 3750G under my desk

If you every find you're running out of space I'd be glad to help

IIRC ZyXel do a range of suitable routers with failover etc.

Tried ZyXel and they are shockingly bad on my DSL lines, constant drops and we didn't have any wireless ones in the office

No point paying for them when I can get FOC netgears