Me too:
I have been getting a similar 45-00-.... mac error message from our cat
4000s since they were installed. Mine is coming from a server that I
don't administer, so I have no idea what os/apps are running. I did
determine that it was not the nic cards address. It doesn't seem to be
causing any issues except creating bogus alarms. If I have time tonight
I'll span the port and find what's inside the frames.
I'll report back tomorrow.
DaveC
Michael Cohen wrote:
>
> Has anyone ever heard of network traffic that's sourced from a multicast
> ethernet address? I've seen error messages on a Catalyst 4000 that reads:
>
> %SYS-4-P2_WARN- 1/Invalid traffic from multicast source address
> 45-00-05-dc-73-a6 on port 1/1
>
> I know that address isn't a multicast address but it's not registered to
any
> Ethernet vendor codes either. Cisco says this is probably from a traffic
> generator (like SmartBits) but I don't think that's being run anywhere.
Has
> anybody seen this MAC address or something like it?
>
> Thanks,
>
> -Michael Cohen
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=8782&t=8746
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