[c-nsp] Microsoft multicasted cluster vs. Cisco IOS

[Tim Franklin]

> >I quickfixed this with a dirty 'arp' command on both routers:
> >
> >         arp 10.106.49.6 03BF.0A6A.3106 arpa
> 
> Yeah - there is a MS technote about this (can't find it right 
> now...). Routers won't learn a multicast MAC address for a unicast IP 
> address. You've done exactly what they suggest...

Thanks guys, that's useful to know - I've been puzzled by recent customer
requests to configure static ARP for these kinds of cases, wondering why we
can't just ARP for the address as normal.

(As a side point, at least Cisco let you configure it if you have to -
Vendor H force you to turn an obscure 'safety catch' off before you can use
a multicast MAC address in a static ARP entry at all...)

Regards,
Tim.

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____________   Tim Franklin                 e: tim at colt.net 
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