Re: [LUG] Multiple paths for routing

HI Rob

I use these

http://www.lartc.org/

ip route + equalize

sample line for equal traffic controlled by the weight.

ip route replace default equalize nexthop via 10.1.2.41 dev eth2 weight 9 nexthop via 10.0.2.41 dev eth1 weight 9 ;

sometimes if i need a set IP which the live node takes a IP i use:

http://www.ultramonkey.org/

Regards

Sam

> To: list@xxxxxxxxxxxxx
> Date: Fri, 7 Mar 2014 13:35:42 +0000
> From: rob@xxxxxxxxxxxxxxx
> Subject: [LUG] Multiple paths for routing
>
> Hi folks,
>
> Got a bit of a question with regards to routing, not sure if it's possible
> but I figure I'd ask anyway.
>
> We have 4 sites in our organisation which are connected via VPN to the
> head office using OpenVPN. Most sites have two connections, either 2 x
> ADSL or 1 x ADSL and 1 x FTTC.
>
> At the moment we've got routes setup so if any one site wants to talk to
> another site it goes over the connection to the main site and then out
> again to the destination site which I gather isn't ideal.
>
> So it looks a bit like this:
>
> Remote Site A ----> Head Office ----> Remote Site B.
>
> Now I've been looking at connecting each site together, so Remote Site A
> can connect directly to Remote Site B and Remote Site C as well as the head
> office. However I'd also like the ability if the direct VPN connection
> goes down (say one of the ADSL links goes down) that it goes via the Head
> Office connection instead.
>
> At the moment the OpenVPN machine is configured so remote subnets go via
> the main VPN connection to the head office, it then gets forwarded on over
> the other VPN connections. What I'd like is some sort of thing where it
> goes directly to the remote site, and if this route is down then go via the
> Head Office route, and if that's down too, just give up.
>
> I just wondered if anyone knew if this was possible and what sort of
> voodoo I need to do to get it to have two possible routes?
>
> Ta,
>
> Rob
>
>
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