Manual

Layer 2 Tunnel Protocol Version 3
ip local interface
100
Cisco IOS Releases 12.0(29)S and 12.2(25)S
ip local interface
To configure the IP address of the provider edge router interface to be used as the source IP address for
sending tunneled packets, use the ip local interface command in pseudowire class configuration mode.
To remove the IP address, use the no form of this command.
ip local interface interface-name
no ip local interface interface-name
Syntax Description
Defaults No ip address is configured.
Command Modes Pseudowire class configuration
Command History
Usage Guidelines Use the same local interface name for all pseudowire classes configured between a pair of PE routers. It
is highly recommended that a loopback interface is configured with this command. If you do not
configure a loopback interface, the router will choose the “best available local address,” which could be
any IP address configured on a core-facing interface. This configuration could prevent a control channel
from being established.
The ip local interface command must be configured for pseudowire class configurations using L2TPv3
as the data encapsulation method.
Note On Cisco 12000 series Internet routers, the interface configured with the ip local interface command
must be a loopback interface.
On the Cisco 10720 Internet router, it is highly recommended that you configure a loopback interface as
the IP local interface. A LAN interface is also supported as the IP local interface. Multiple L2TPv3
tunnel sessions can exist between Cisco 10720 Internet routers on different IP LANs.
interface-name Name of the PE interface whose IP address is used as the source IP address
for sending tunneled packets over an Layer 2 Tunnel Protocol Version 3
(L2TPv3) pseudowire.
Release Modification
12.0(23)S This command was introduced.
12.2(25)S This command was integrated into Cisco IOS Release 12.2(25)S.