em(4) device still 'freezes' on latset CVSup'd 6.x ...

Gavin Atkinson gavin.atkinson at ury.york.ac.uk
Thu May 4 14:51:03 UTC 2006

On Thu, 2006-05-04 at 11:30 -0300, Marc G. Fournier wrote:
> On Thu, 4 May 2006, Rutger Bevaart wrote:
> > Technically it's not routes that are not being updated, but a stale 
> > (outdated) ARP cache on the other hosts. The system with the new alias'ed IP 
> > needs to do a gratuitous ARP (broadcast ARP for it's own IP). As an 
> > intermediate solution you could flush the ARP cache on the hosts with stale 
> > cache (usually a router or L3 switch on the subnet).
> This is what we end up having to do ... but, unfortunately, that means 
> getting ahold of our co-lo provider and asking them to do it ... they have 
> always been most accomodating, its just one of those things that I 
> shouldn't *have* to do :(

... or use ports/net/arping:

arping -S <new IP> -s <your-MAC> router-IP

But, I agree, this is a bug with em(4) that should probably be fixed at
some point...


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