[c-nsp] Are multicast MAC addresses allowed in the source field?

[Murphy, William]

We use a multicast based load sharing cluster and you definitely must create
static ARP and CAM entries for this to work properly and I believe you must
also disable IGMP snooping.  Cisco will not accept ARP response with I/G bit
set...

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of John Neiberger
Sent: Friday, October 15, 2010 3:42 PM
To: Christopher.Marget at usc-bt.com
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Are multicast MAC addresses allowed in the source
field?

On Fri, Oct 15, 2010 at 2:17 PM,  <Christopher.Marget at usc-bt.com> wrote:
> The I/G bit must be cleared in the source address of an Ethernet frame.
>
> Ref: IEEE 802.3-2002, Section 3.2.3(b)

I'm finding out more about what this firewall vendor is actually
trying to do. From what I can gather, it's based on Microsoft Network
Load Balancing and it requires static MAC address table and ARP
entries.

http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration
_example09186a0080a07203.shtml#mm
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