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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.

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  • I really feel so sorry for you :/
    – Lucas Kauffman
    Mar 12, 2013 at 15:01
  • While sympathy is always much appreciated, that hasn't exactly moved me forwards ;)
    – David Shields
    Mar 12, 2013 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, 2019 at 10:34

2 Answers 2

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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.

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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

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  • Looks good, investigating now.
    – David Shields
    Mar 12, 2013 at 15:46

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