Cisco Systems 3560X Manual De Usuario
24-25
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 24 Configuring DHCP Features and IP Source Guard
Displaying IP Source Guard Information
This example shows how to enable IPSG for static hosts with IP filters on a private VLAN host port:
Switch(config)# vlan 200
Switch(config-vlan)# private-vlan primary
Switch(config-vlan)# exit
Switch(config)# vlan 201
Switch(config-vlan)# private-vlan isolated
Switch(config-vlan)# exit
Switch(config)# vlan 200
Switch(config-vlan)# private-vlan association 201
Switch(config-vlan)# exit
Switch(config)# int gigabitethernet1/0/3
Switch(config-if)# switchport mode private-vlan host
Switch(config-if)# switchport private-vlan host-association 200 201
Switch(config-if)# ip device tracking maximum 8
Switch(config-if)# ip verify source tracking
Switch# show ip device tracking all
IP Device Tracking = Enabled
IP Device Tracking Probe Count = 3
IP Device Tracking Probe Interval = 30
---------------------------------------------------------------------
IP Address MAC Address Vlan Interface STATE
---------------------------------------------------------------------
40.1.1.24 0000.0000.0304 200 GigabitEthernet1/0/3 ACTIVE
40.1.1.20 0000.0000.0305 200 GigabitEthernet1/0/3 ACTIVE
40.1.1.21 0000.0000.0306 200 GigabitEthernet1/0/3 ACTIVE
40.1.1.22 0000.0000.0307 200 GigabitEthernet1/0/3 ACTIVE
40.1.1.23 0000.0000.0308 200 GigabitEthernet1/0/3 ACTIVE
The output shows the five valid IP-MAC bindings that have been learned on the interface Fa0/3. For the
private VLAN cases, the bindings are associated with primary VLAN ID. So, in this example, the
primary VLAN ID, 200, is shown in the table.
private VLAN cases, the bindings are associated with primary VLAN ID. So, in this example, the
primary VLAN ID, 200, is shown in the table.
Switch# show ip verify source
Interface Filter-type Filter-mode IP-address Mac-address Vlan
--------- ----------- ----------- --------------- ----------------- ----
Gi1/0/3 ip trk active 40.1.1.23 200
Gi1/0/3 ip trk active 40.1.1.24 200
Gi1/0/3 ip trk active 40.1.1.20 200
Gi1/0/3 ip trk active 40.1.1.21 200
Gi1/0/3 ip trk active 40.1.1.22 200
Gi1/0/3 ip trk active 40.1.1.23 201
Gi1/0/3 ip trk active 40.1.1.24 201
Gi1/0/3 ip trk active 40.1.1.20 201
Gi1/0/3 ip trk active 40.1.1.21 201
Gi1/0/3 ip trk active 40.1.1.22 201
The output shows that the five valid IP-MAC bindings are on both the primary and secondary VLAN.
Displaying IP Source Guard Information
Table 24-3
Commands for Displaying IP Source Guard Information
Command
Purpose
show ip source binding
Display the IP source bindings on a switch.
show ip verify source
Display the IP source guard configuration on the switch.