Cisco Systems 3750E Standby group-number ip ip-address, Secondary, 40-6, Switch# show standby

Chapter 40 Configuring HSRP and Enhanced Object Tracking

Configuring HSRP

When the standby ip command is enabled on an interface and proxy ARP is enabled, if the interface’s Hot Standby state is active, proxy ARP requests are answered using the Hot Standby group MAC address. If the interface is in a different state, proxy ARP responses are suppressed.

Beginning in privileged EXEC mode, follow these steps to create or enable HSRP on a Layer 3 interface:

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	interface interface-id	Enter interface configuration mode, and enter the Layer 3 interface on
		which you want to enable HSRP.
Step 3
	standby [group-number]ip [ip-address	Create (or enable) the HSRP group using its number and virtual IP
	[secondary]]	address.
		• (Optional) group-number—The group number on the interface for
		which HSRP is being enabled. The range is 0 to 255; the default is 0.
		If there is only one HSRP group, you do not need to enter a group
		number.
		• (Optional on all but one interface) ip-address—The virtual IP address
		of the hot standby router interface. You must enter the virtual IP
		address for at least one of the interfaces; it can be learned on the other
		interfaces.
		• (Optional) secondary—The IP address is a secondary hot standby
		router interface. If neither router is designated as a secondary or
		standby router and no priorities are set, the primary IP addresses are
		compared and the higher IP address is the active router, with the next
		highest as the standby router.
Step 4
	end	Return to privileged EXEC mode.
Step 5
	show standby [interface-id [group]]	Verify the configuration.
Step 6
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

Use the no standby [group-number] ip [ip-address] interface configuration command to disable HSRP.

This example shows how to activate HSRP for group 1 on a port. The IP address used by the hot standby group is learned by using HSRP.

Note This procedure is the minimum number of steps required to enable HSRP. Other configuration is optional.

Switch# configure terminal

Switch(config)# interface gigabitethernet1/0/1

Switch(config-if)# no switchport

Switch(config-if)# standby 1 ip

Switch(config-if)# end

Switch# show standby

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

40-6 OL-9775-02