Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

Duplicate IP address

Hi,

We have a strange issue with on our customers. Since a couple of weeks he gets an error message stating that there is a duplicate IP address for the address of one his vlans. This message gets back on regular times so we thought somebody had an illegal DHCP server.

So we changed the ip address of the vlan but then we got error messages on the new IP address.

I don't see anything wrong in the switch config .

Does anybody have seen this before ?

gr

wim

1 REPLY
Silver

Re: Duplicate IP address

you can try clearing the Content-Addressable Memory (CAM) table entries using the clear mac-address-table dynamic command. In order to display MAC address table information for a specific MAC address, use the show mac-address-table address command.

126
Views
0
Helpful
1
Replies
CreatePlease to create content