2008/10/7 BARDOU Pierre <[EMAIL PROTECTED]>

> Hello,
>
> I am trying to set up a configuraion like this :
>
>             +------- -+       +---------+
>             |  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    |
>             +-------------------------+
>
> 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.
>
> 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.
>
> 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 ?
>
> Many thanks
>
> PS : loadbalancing incoming connections too would be very nice, but I
> understood it was much more difficult.
>
> --
> Cordialement,
> Pierre BARDOU
>


just wondering......

What happens when you load balance your
traffic on your firewalls ? So you devide
the traffic over both bgp routers:

http://www.openbsd.org/faq/pf/pools.html

maybe you could even do the route-to
on the bgp routers ?

something like:

route-to { ($ext_if $ext_ISP1), ($local_if $BGP2 ) } round-robin
from $lan_net to any keep state
#and on the other bgp router
route-to { ($ext_if $ext_ISP2), ($local_if $BGP1 ) } round-robin
from $lan_net to any keep state

Beware: I have no idea if any of this is possible.
But thats what I'd try :)

Gr. FH

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