tunnel source
To set a tunnel interface's source address, use the tunnel source command. To remove the source address,
use the no form of this command.
The tunnel will not be operational until the tunnel source is specified.Note
tunnel source {interface_name| ip-address}
no tunnel source {interface_name| ip-address}
Syntax Description
Specifies the name of the interface whose IP address will be used as the source
address of the tunnel. The interface name can be of a loopback interface or a
physical interface.
interface_name
Specifies the IPv4 or IPv6 address to use as the source address for packets in the
tunnel.
ip-address
Command Default
None
Command Modes
interface configuration
Command History
ModificationRelease
This command was introduced.Release 4.2.0
The tunnel source can be an IPv6 address.Release 5.2.2
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task
IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator
for assistance.
It is recommended that the tunnel source is identified using the interface ID and not the IP address. Using the
interface ID enables the router to mark the tunnel as down when the interface is down and the routing protocol
tries to find and use an alternate route to the tunnel route.
Task ID
OperationsTask ID
read, writeinterface
Cisco ASR 9000 Series Aggregation Services Router VPN and Ethernet Services Command Reference, Release
6.1.x
53
Generic Routing Encapsulation Commands
tunnel source
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