Cisco Cisco ASR 5700
LAC Service Configuration Mode Commands
single-port-mode ▀
Command Line Interface Reference, StarOS Release 17 ▄
6805
single-port-mode
This command enables/disables the L2TP LAC service always to use standard L2TP port 1701 as source port for all
L2TP control and data packets originated from LAC node.
L2TP control and data packets originated from LAC node.
Product
GGSN
PDSN
P-GW
SAEGW
Privilege
Security Administrator, Administrator
Mode
Exec > Global Configuration > Context Configuration > LAC Service Configuration
configure > context context_name > lac-service service_name
Entering the above command sequence results in the following prompt:
[context_name]host_name(config-lac-service)#
Syntax
[ default | no ] single-port-mode
default
Default: Enabled
Sets this command to its default state of disabled. By default single source port configuration for L2TP LAC
packets is disabled.
Sets this command to its default state of disabled. By default single source port configuration for L2TP LAC
packets is disabled.
no
Disables the configured single source port configuration from this LAC service.
Usage
Use this command to enable or disable the single port mode for L2TP LAC service.
If this feature is enabled, then L2TP LAC service will always use standard L2TP port 1701 as source port for
all L2TP control/data packets originated from LAC (instead of the default scheme in which each L2TPMgr
uses a dynamic source port). L2TPMgr instance 1 will handle all L2TP calls for the service.
If this feature is enabled, then L2TP LAC service will always use standard L2TP port 1701 as source port for
all L2TP control/data packets originated from LAC (instead of the default scheme in which each L2TPMgr
uses a dynamic source port). L2TPMgr instance 1 will handle all L2TP calls for the service.
Caution:
Changing this configuration, while the service is already running, will cause restart of the service.
Example
The following command enables the LAC service to use port 1701 as source port for all L2TP control and
data packets:
data packets:
single-port-mode