Cisco Catalyst 4500 Series Software Configuration Guide

18-6
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 18 Configuring IP Unnumbered Interface
Configuring IP Unnumbered Interface Support with Connected Host Polling
Configuring IP Unnumbered Interface Support with Connected
Host Polling
To configure IP unnumbered interface support with connected host polling, perform this task:
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
Command Purpose
Step 1
Switch# enable
Enables privileged EXEC mode.
Enter your password if prompted.
Step 2
Switch# configure terminal
Enters global configuration mode.
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.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E