12.3.5 Checking DHCP snooping Log Messages

Use the show ip dhcp snooping logging command to display the messages logged by DHCP snooping. The log messages include those pertaining to updating of the binding database, updating of terminal filters, detection of invalid DHCP servers, discarding of invalid DHCP packets, and discarding of ARP packets.

The following figure shows the result of executing the show ip dhcp snooping logging command:

Figure 12-17: Result of show ip dhcp snooping logging
> show ip dhcp snooping logging Date 20XX/04/20 12:00:00 UTC Apr 20 11:00:00 ID=2201 NOTICE DHCP server packets were received at an untrust port(0/2/1/0012.e2ff.fe01/192.168.100.254). >