On Thu, 2010-03-25 at 10:38 -0700, Bracey, John wrote: > Have any of you run into this issue? If so, were you able to help out > from the Cisco side?
I'm not sure it's the same problem, but we've had to include a static ARP entry for the NLB cluster on the default gateway, like this: C6k(config)# arp vrf X 10.0.0.1 03bf.0abc.def0 ARPA This was about the router not accepting an ARP reply from a multicast address though. You might already have been through that part. If the problem is that the gateway won't answer ARP requests originating from a multicast address the only sensible solution would be a static ARP entry on the host IMHO. And for the record: Using a multicast MAC address this way is stupid and against the specifications. Please refer the vendor of the software to IEEE 802.3-2008 part 1, section 3.2.3: > 3.2.3 Address fields > [...] > > b) The first bit (LSB) shall be used in the Destination Address field > as an address type designation bit to identify the Destination > Address either as an individual or as a group address. If this bit > is 0, it shall indicate that the address field contains an > individual address. If this bit is 1, it shall indicate that the > address field contains a group address that identifies none, one or > more, or all of the stations connected to the LAN. In the Source > Address field, the first bit is reserved and set to 0. -- Peter _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
