Pdsn Service Configuration For L2Tp Support; Modifying Pdsn Service To Support Attribute-Based L2Tp Tunneling - Cisco ASR 5000 Series 3G Home NodeB Administration Manual

▀ PDSN Service Configuration for L2TP Support

PDSN Service Configuration for L2TP Support
PDSN service configuration is required for compulsory tunneling and optional for attribute-based tunneling.
For attribute-based tunneling, a configuration error could occur such that upon successful authentication, the system
determines that the subscriber session requires L2TP but can not determine the name of the context in which the
appropriate LAC service is configured from the attributes supplied. As a precautionary, a parameter has been added to
the PDSN service configuration options that will dictate the name of the context to use. It is strongly recommended that
this parameter be configured.
This section contains instructions for modifying the PDSN service configuration for either compulsory or attribute-
based tunneling.
These instructions assume that the PDSN service was previously configured and system is ready to serve as a PDSN.
This section provides the minimum instruction set for configuring an L2TP service on the PDSN system. For more
information on commands that configure additional parameters and options, refer to the Command Line Interface
Reference.
To configure the PDSN service to support L2TP:
Step 1
Modify PDSN service to configure compulsory tunneling or attribute-based tunneling by applying the example
configuration in any of the following sections:


Modifying PDSN service to Support Attribute-based L2TP Tunneling


Modifying PDSN service to Support Compulsory L2TP Tunneling
Step 2
Verify your LAC service configuration by following the steps in the
L2TP section.
Step 3
Save your configuration to flash memory, an external memory device, and/or a network location using the Exec mode
command
save configuration
System Administration Guide and the Command Line Interface Reference.
Modifying PDSN service to Support Attribute-based L2TP Tunneling
Use the following example to modify an existing PDSN service to support attribute-based L2TP tunneling on your
system:
configure
context <ctxt_name>
pdsn-service <pdsn_svc_name>
ppp tunnel-context <lac_ctxt_name>
end
Notes:
 <
ctxt_name
▄ Cisco ASR 5000 Series 3G Home NodeB Gateway Administration Guide
174
. For additional information on how to verify and save configuration files, refer to the
> is the destination context where the PDSN service is configured.
Verifying the PDSN Service Configuration for
IP Security
OL-25069-03