Reference Guide

(Extreme 220) #show ip dhcp snooping interfaces ethernet 1/g15
Interface Trust State Rate Limit Burst
Interval
(pps) (seconds)
----------- ---------- ---------- --------------
1/g15 Yes 15 1
show ip dhcp snooping statistics
Use this command to list statistics for DHCP Snooping security violations on untrusted ports.
Format show ip dhcp snooping statistics
Mode
•
Privileged EXEC
•
User EXEC
Column Meaning
Interface The IP address of the interface in unit/slot/port format.
MAC Verify Failures Represents the number of DHCP messages that were filtered on an untrusted interface
because of source MAC address and client HW address mismatch.
Client Ifc Mismatch Represents the number of DHCP release and Deny messages received on the dierent
ports than learned previously.
DHCP Server Msgs Rec’d Represents the number of DHCP server messages received on Untrusted ports.
The following example shows CLI display output for the command.
(Extreme 220) #show ip dhcp snooping statistics
Interface MAC Verify Client Ifc DHCP Server
Failures Mismatch Msgs Rec'd
----------- ---------- ---------- -----------
1/0/2 0 0 0
1/0/3 0 0 0
1/0/4 0 0 0
1/0/5 0 0 0
1/0/6 0 0 0
1/0/7 0 0 0
1/0/8 0 0 0
1/0/9 0 0 0
1/0/10 0 0 0
1/0/11 0 0 0
1/0/12 0 0 0
1/0/13 0 0 0
1/0/14 0 0 0
1/0/15 0 0 0
1/0/16 0 0 0
1/0/17 0 0 0
1/0/18 0 0 0
1/0/19 0 0 0
1/0/20 0 0 0
clear ip dhcp snooping binding
Use this command to clear all DHCP
Snooping bindings on all interfaces or on a specific interface.
Switching Commands
ExtremeSwitching 200 Series: Command Reference Guide for version 01 .02.04.0007 429