Configuring Mobile IP

Mobile IP HA Redundancy Configuration Task List

Enabling HA Redundancy for a Physical Network

To enable HA redundancy for a physical network, use following commands beginning in interface configuration mode:

 

Command

Purpose

Step 1

 

 

Router (config-if)# standby [group-number] ip

Enables HSRP.

 

ip-address

 

Step 2

 

 

Router(config-if)# standby name hsrp-group-name

Sets the name of the standby group.

Step 3

 

 

Router(config)# ip mobile home-agent standby

Configures the home agent for redundancy using

 

hsrp-group-name

the HSRP group name.

Step 4

 

 

Router(config)# ip mobile secure home-agent address

Sets up the home agent security association

 

spi spi key hex string

between peer routers. If configured on the active

 

 

HA, the IP address address argument is that of the

 

 

standby HA. If configured on the standby HA, the

 

 

IP address address argument is that of the active

 

 

router. Note that a security association needs to be

 

 

set up between all HAs in the standby group.

 

 

 

Enabling HA Redundancy for a Virtual Network Using One Physical Network

To enable HA redundancy for a virtual network and a physical network, use the following commands beginning in interface configuration mode:

 

Command

Purpose

Step 1

 

 

Router (config-if)# standby [group-number] ip

Enables HSRP.

 

ip-address

 

Step 2

 

 

Router(config-if)# standby name hsrp-group-name

Sets the name of the standby group.

Step 3

 

 

Router(config)# ip mobile home-agent address address

Defines a global home agent address. In this

 

 

configuration, the address is the HSRP group

 

 

address. Enter this command if the mobile node

 

 

and home agent are on different subnets.

 

or

or

 

 

 

Router(config)# ip mobile home-agent

Enables and controls home agent services to the

 

router. Enter this command if the mobile node and

 

 

 

 

home agent are on the same subnet.

Step 4

 

 

Router(config)# ip mobile virtual-network net mask

Defines the virtual network. If the mobile node

 

[address address]

and home agent are on the same subnet, use the

 

 

[address address] option.

 

 

 

Cisco IOS IP Configuration Guide

IPC-172

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Cisco Systems 78-11741-02 manual Enabling HA Redundancy for a Physical Network, IPC-172
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