The source command configures a source IP address or a source interface for a tunnel.
The undo source command deletes the source IP address or source interface of a tunnel.
By default, no source IP address or source interface is configured for a tunnel.
| Parameter | Description | Value |
|---|---|---|
| source-ip-address |
Specifies the source address of a tunnel. |
The value is in dotted decimal notation. |
| interface-type |
Specifies the name of the source interface of a tunnel. |
The value is a string of 1 to 63 case-sensitive characters, spaces not supported. |
| interface-number |
Specifies the number of the source interface of a tunnel. |
The value is a string of 1 to 63 case-sensitive characters, spaces not supported. |
Usage Scenario
When configuring a tunnel, you must create a tunnel interface and run the source command to configure the source address on the tunnel interface. The IP address of the interface that sends packets should be specified as the source address on the tunnel interface.
Prerequisites
The tunnel mode has been configured using the tunnel-protocol command.
Configuration Impact
The same source or destination IP address cannot be configured for two or more tunnel interfaces that use the same encapsulation protocol.
Precautions
For a tunnel, its source IP address is the same as the destination IP address specified on the remote tunnel interface. Ensure that there is a reachable route between the source and destination tunnel interfaces.
A source tunnel interface can be a physical interface or a loopback interface. Similarly, a source IP address for a tunnel interface can be the IP address of a physical interface or a loopback interface. The source command is mutually exclusive with the data-link command.