Using 2 ISPs with a LAN: possible?

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OwenWatson

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#130700 24-Sep-2013 21:23

We've got a good quality wired internet connection with a high data price. Is there any possibility of using a lower-quality, cheap ISP as a parallel connection to our ISP: what traffic would go through which ISP could be client, protocol, or whatever based. We've got a class C LAN with a Zywall USG200 router.
Is this possible? Any further reading I can do?
The cheap ISP couldn't come with a suggestion of how we could do it, which made me put it aside, but I thought I'd take another look. The other advantage to the parallel connection would be a bit of network redundancy.

insane

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2degrees

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#902088 24-Sep-2013 21:28

same question was asked a few days ago, just a few threads down

http://www.geekzone.co.nz/forums.asp?forumid=66&topicid=129404

OwenWatson

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#902108 24-Sep-2013 22:19

Thanks; looks like it's possible with the Mikrotik, not so sure about the Zywall. Will investigate further with the person responsible for the Zywall.

Zeon

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#902156 25-Sep-2013 00:14

Probably not worth trying with Zywall - get mikrotik, pfsense or another more advanced router. But easily doable. IPv6 does make this harder though....

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raytaylor

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#902750 25-Sep-2013 23:20

I used to do this with a windows server - its called load balancing NAT
The easiest way, without the microtik learning curve is with pfsense.

Even easier is just using two gateways in the network
When you want to use ISP1, you set your workstations gateway ip address to the first modem
When you want to use ISP2, you set your workstations gateway ip address to the second modem.

Now things are a bit more organised, I use my own isp network for general data, but my torrenting goes through the dsl connection with my flatmates data on an unlimited broadband plan.
I have my normal gateway set as per normal, but a second lan card in my desktop with vuze configured to only operate on that second lan card - which uses the second modem as a gateway.

I recomend looking into pfsense.
Microtik if you feel you want to get dirty.

Ray Taylor

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