Cisco Systems 4500 Displaying IP Unnumbered Interface Settings

14-6
Software Configuration Guide—Release 15.0(2)SG
OL-23818-01
Chapter 14 Configuring IP Unnumbered Interface
Displaying IP Unnumbered Interface Settings
The following example shows how to enable IP processing and connected host polling on Fast Ethernet
interface 6/2. It also shows how to set the global backlog queue to 2000 and the maximum number of
ARP requests to 500:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# interface fastEthernet 6/2
Switch(config-if)# no switchport
Switch(config-if)# ip unnumbered loopback 0 poll
Warning: dynamic routing protocols will not work on non-point-to-point interfaces with IP
unnumbered configured.
Switch(config-if)# exit
Switch(config)# ip arp poll queue 2000
Switch(config)# ip arp poll rate 500
Switch(config)# end
Displaying IP Unnumbered Interface Settings
Use the show ip interface unnumbered command to display status of an unnumbered interface with
connected host polling for the switch.
Step 3 Switch(config)# interface vlan vlan-id Enters interface configuration mode and the interface to
be configured as a tunnel port.
Step 4 Switch(config-if)# ip unnumbered type number poll Enables IP processing and connected host polling on an
interface without assigning an explicit IP address to the
interface
type and number specify another interface on which the
switch has an assigned IP address. The interface specified
cannot be another unnumbered interface.
The type argument can have the values: loopback,
fastethernet, gigabitethernet, svi, and portchannel.
Step 5 Switch(config-if)# exit Returns to global configuration mode.
Step 6 Switch(config)# ip arp poll queue <10-10000> Configures the global backlog queue of host addresses to
be discovered.
Default for the queue size is 1000.
Step 7 Switch(config)# ip arp poll rate <10-10000> Configures the maximum number of ARP requests sent
over unnumbered interfaces.
Default number of ARP requests is 1000 packet per
second.
Step 8 Switch(config)# end Returns to privileged EXEC mode.
Step 9 Switch# show running-config Verifies that IP unnumbered support has been configured
correctly.
Command Purpose (continued)