0000.e24c.f463 has moved from port 22 to port 20 in vlan1

[ecafracs]

I'd been posting this problem but can't get any answer that ir right on the money,can't work from hyperlinks alone.

My network has been looping and I can't determine which is causing the loop. Anyway, these are the messages I'd been getting from my switches.


0000.e24c.f463 has moved from port 22 to port 20 in vlan1
%RTD-1-ADDR_FLAP: FastEthernet0/19 relearning 5 addrs per min


hope to get it over this time.

Many thanks.

 

[baddos]

Show a diagram of the way your switches and/or hubs are plugged together.

 

[seabass1]

you either have a physical loop or you have a device that is doing proxy arp (firewall etc.)

 

[fynx]

Identify what this mac address is...
try...
# show ip arp | include 0000.e24c.f463
On a router on this VLAN.

Also you can try
#show cdp neighbors
and identify what is connected out of port 20 and 22

Let me know the outcome
Cheers
Phil.

If everything is coming your way then you're in the wrong lane.

 

[ecafracs]

Hi guys!
I was able to identify the device. Now after I have identified this device, what's the best thing I can do next. Should I remove the device from the network?
The machine is a DHCP server, so I can't just remove it from the network.

 

[IPKONFIG]

You have a host that is causing your switch these problems? Is this server multi-honed?

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