Am Tue, 20 Jan 2009 21:57:59 +0000 (UTC)
schrieb Stuart Henderson <s...@spacehopper.org>:

> On 2009-01-20, u...@o3si.de <u...@o3si.de> wrote:
> > as the FAQ http://www.openbsd.org/faq/faq6.html#Multipath states:
> >
> > "It's worth noting that if an interface used by a multipath route
> > goes down (i.e., loses carrier), the kernel will still try to
> > forward packets using the route that points to that interface.
> 
> the FAQ refers to 4.4 (i.e. the last released version), but I'm
> pretty sure this particular thing (link down resulting in blackhole)
> is not a problem in -current.

Oh, I hope this. The same behaviour I already noticed like Ricardo so I
give -current a try.
 
> you may still have a need for some other way to kill the route if
> the link stays up but the nexthop is down, though.

I'll prefer ifstated but relayd for monitoring may bee a solution too.

> > So use ifstated to check the link of the interface and populate the
> > routing table accordingly.
> 
> as an alternative to ifstated, you could take default routes from
> OSPF if your environment allows. (ospfd is ECMP capable).
> 

Thanks @Claudio and @Stuart for Your advice!

Regards Uwe

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