> OpenBGP load balancing between 2 ISP (multihoming)
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> 2008/10/7 BARDOU Pierre
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> Hello,
> =09
> I am trying to set up a configuraion like this :
> =09
> +------- -+ +---------+
> | ISP1 | | ISP2 | Cisco
> | ROUTER | | ROUTER |
> | AS3215 | | AS12670 |
> +---------+ +---------+
> | |
> | |
> +---------+ +---------+
> | BGP | | BGP |
> | ROUTER | | ROUTER | OpenBSD 4.3
> | AS47818 | | AS45818 |
> +---------+ +---------+
> | |
> | |
> +-------------------------+
> | 217.109.108.240/28 |
> +-------------------------+
> | |
> | |
> +--------+ +-------+
> | FW |--------| FW | OpenBSD 4.3
> | MASTER | pfsync | SLAVE |
> +--------+ +-------+
> | |
> | |
> +-------------------------+
> | PRIVATE NETWORKS |
> +-------------------------+
> =09
> I'd like to load balance outgoing connections to the internet,
> but I don't know how to configure openBGPd to do this.
> I searched a lot on the Internet and I found a lot of informations
> on how to do this with cisco, but I have never found an openBGP
> solution.
> Some people speak about it but I have never seen it.
> =09
> I made a test conf where failover works like a charm (using iBGP on
> the
> FW's with 'set nexhop self' on BGP routers), but when both
> connections
> are active only one is used.
> =09
> Would it be possible to help me please ?
> Is setting up iBGP sessions between FW's and BGP routers a good idea
> ?
> Should I rather use OSPF for this ?
> And in tha case how to configure it to loadbalance/failover ?
> =09
> Many thanks
> =09
> PS : loadbalancing incoming connections too would be very nice, but
> I
> understood it was much more difficult.
> =09
> --
> Cordialement,
> Pierre BARDOU
> =09
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> just wondering......
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> What happens when you load balance your
> traffic on your firewalls ? So you devide
> the traffic over both bgp routers:
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>
http://www.openbsd.org/faq/pf/pools.html
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> maybe you could even do the route-to=20
> on the bgp routers ?
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> something like:
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> route-to { ($ext_if $ext_ISP1), ($local_if $BGP2 ) } round-robin=20
> from $lan_net to any keep state=20
> #and on the other bgp router=20
> route-to { ($ext_if $ext_ISP2), ($local_if $BGP1 ) } round-robin=20
> from $lan_net to any keep state=20
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> Beware: I have no idea if any of this is possible.
> But thats what I'd try :)
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> Gr. FH
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