aggregating multiple ISP connections

Question

OK, so we have an office in Pakistan. Phone and ISP service is pretty poor there, so they have 2 ISP connections, one thru Pakistan telecom, one thru a different ISP. The PK tele one has a router that cannot be changed (so they tell me), the other one connects to a local service over RJ45.

So assuming the routers cannot be swapped out, how can I configure the office so that some level of fail-over is provided, and the office all connects to one network, with one dhcp provider, giving them somewhat robust internet access without split networks, and having to mess around if a connection goes down.

I have access to a spare Ubuntu box if needed to be set up as a proxy server or similar. We can add NIC's to this.

While sympathy is always much appreciated, that hasn't exactly moved me forwards ;) — David Shields, Mar 12 '13 at 15:46
Could you update us with the solution you went with? Provide the solution and accept it. That way it will help us all in the future. — Tommiie, Jan 15 '19 at 10:34

score 0 · Answer 1 · answered Mar 12 '13 at 15:09

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Use two nics, use iproute2 to create source based routing in ubuntu. There are a lot of iproute2 dual wan guides on the internet.

answered Mar 12 '13 at 15:09

Jure1873

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I'll look into this – David Shields Mar 12 '13 at 15:47

score 0 · Answer 2 · answered Mar 12 '13 at 15:18

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und linux this is possible but it's a good load of reading trying and testing.

you have a spare box. This is good put 3 Nics in it and the use the BSD pfsense Distro.

it's a really good bsd firewall distro with tons of good features and free :)

for you the Multi WAN setup.

Loadbalancing and FailOver scenarios are no problem and working like a charm.

cheers

answered Mar 12 '13 at 15:18

chifiebre

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Looks good, investigating now. – David Shields Mar 12 '13 at 15:46

aggregating multiple ISP connections

2 Answers2