[c-nsp] Learning a Multicast Ethernet for Unicast IP via ARP

Peter Rathlev peter at rathlev.dk
Sat Oct 18 02:38:42 EDT 2008

On Fri, 2008-10-17 at 15:49 -0700, David Sinn wrote:
> On Oct 17, 2008, at 3:00 PM, Crist Clark wrote:
> > Is there a way to tell the router to accept the ARP responses or
> > is the static entry the best option?
> Ignoring ARP responses that return multicast (or broadcast) MAC 
> addresses is required by the RFC1812 Section 3.3.2.  Static ARP's are 
> the only options (or working on getting the RFC changed).

Exactly. Microsoft NLB also has this problem. You would need a command
similar to:

arp 03bf.0a55.151e ARPA

to make it work.


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