ADTRAN AOS Version R10.1.0 Command Reference Manual page 2684

Command Reference Guide
tunnel key <value>
Use the tunnel key command to specify a value shared by both endpoints of the tunnel that will provide
minimal security and delineate between tunnels with the same source and destination addresses. Use the no
form of this command to disable the key.
Syntax Description
<value>
Default Values
By default, a key is not configured.
Command History
Release 9.1
Functional Notes
When enabled, the key will be stored in the generic routing encapsulation (GRE) header and the key
present bit will be set. If tunnel keys are used, a matching key value must be defined on both endpoints of
the tunnel or packets will be discarded.
Usage Examples
The following example sets the key on a tunnel interface to a value of 1234:
(config)#interface tunnel 1
(config-tunnel 1)#tunnel key 1234
60000CRG0-35E
Defines the key value for this tunnel. Valid range is 1 to 4294967294.
Command was introduced.
Copyright © 2012 ADTRAN, Inc.
Tunnel Interface Command Set
2684