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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
show ip verify source
show ip verify source
To display the IP source guard configuration and filters on a particular interface, use the show ip verify
source command.
show ip verify source [interface interface_num]
Syntax Description
Defaults This command has no default settings.
Command Modes Privileged EXEC mode
Command History
Examples These examples show how to display the IP source guard configuration and filters on a particular
interface with the show ip verify source interface command:
• This output appears when DHCP snooping is enabled on VLANs 10–20, interface fa6/1 has IP
source filter mode that is configured as IP, and an existing IP address binding 10.0.0.1 is on
VLAN 10:
Interface Filter-type Filter-mode IP-address Mac-address Vlan
--------- ----------- ----------- --------------- -------------- ---------
fa6/1 ip active 10.0.0.1 10
fa6/1 ip active deny-all 11-20
Note The second entry shows that a default PVACL (deny all IP traffic) is installed on the port for
those snooping-enabled VLANs that do not have a valid IP source binding.
• This output appears when you enter the show ip verify source interface fa6/2 command and DHCP
snooping is enabled on VLANs 10–20, interface fa6/1 has IP source filter mode that is configured
as IP, and there is an existing IP address binding 10.0.0.1 on VLAN 10:
Interface Filter-type Filter-mode IP-address Mac-address Vlan
--------- ----------- ----------- --------------- -------------- ---------
fa6/2 ip inactive-trust-port
• This output appears when you enter the show ip verify source interface fa6/3 command and the
interface fa6/3 does not have a VLAN enabled for DHCP snooping:
Interface Filter-type Filter-mode IP-address Mac-address Vlan
--------- ----------- ----------- --------------- -------------- ---------
fa6/3 ip inactive-no-snooping-vlan
interface interface_num (Optional) Specifies an interface.
Release Modification
12.1(19)EW Support for this command was introduced on the Catalyst 4500 series switch.