Displaying DHCP Snooping and Trusted Server Information

Display the DHCP snooping configuration settings using the command:

show ip-security dhcp-snooping {vlan} vlan_name

Below is sample output from this command:

DHCP Snooping enabled on ports: 1:2, 1:3, 1:4, 1:7, 1:9
Trusted Ports: 1:7
Trusted DHCP Servers: None
--------------------------------------------
Port			Violation-action
--------------------------------------------
1:2			none
1:3			drop-packet
1:4			drop-packet, block-mac permanently
1:7			none
1:9			drop-packet, snmp-trap

Display the DHCP bindings database using the command:

show ip-security dhcp-snooping entries {vlan} vlan_name

Below is sample output from this command:

--------------------------------------------
Vlan: dhcpVlan
--------------------------------------------
Server    Client
IP Addr         MAC Addr            Port      Port
-------         --------            ------    ------
172.16.100.9    00:90:27:c6:b7:65   1:1       1:2