Cisco Cisco Packet Data Gateway (PDG) Dépliant
Service Configurations
APN Template Configuration to Support L2TP ▀
Cisco StarOS IP Security (IPSec) Reference ▄
95
APN Template Configuration to Support L2TP
This section provides instructions for adding L2TP support for APN templates configured on the system.
These instructions assume that the APN template was previously configured on this system.
Important:
This section provides the minimum instruction set for configuring an APN template to support L2TP
for APN. For more information on commands that configure additional parameters and options, refer to the Command
Line Interface Reference.
Line Interface Reference.
To configure the APN to support L2TP:
Step 1
Step 2
Step 3
Save your configuration to flash memory, an external memory device, and/or a network location using the Exec mode
command save configuration. For additional information on how to verify and save configuration files, refer to the
System Administration Guide and the Command Line Interface Reference.
command save configuration. For additional information on how to verify and save configuration files, refer to the
System Administration Guide and the Command Line Interface Reference.
Modifying an APN Template to Support L2TP
Use the following example to modify APN template to support L2TP:
configure
context <ctxt_name>
apn <apn_name>
tunnel l2tp [ peer-address <lns_address> [ [ encrypted ] secret
<l2tp_secret> ] [ preference <num> ] [ tunnel-context <tunnel_ctxt_name> ] [
local-address <agw_ip_address> ] [ crypto-map <map_name> { [ encrypted ] isakmp-
secret <crypto_secret> } ]
<l2tp_secret> ] [ preference <num> ] [ tunnel-context <tunnel_ctxt_name> ] [
local-address <agw_ip_address> ] [ crypto-map <map_name> { [ encrypted ] isakmp-
secret <crypto_secret> } ]
end
Notes:
<ctxt_name>
is the system context in which the APN template is configured.
<apn_name>
is name of the preconfigured APN template in which you want to configure L2TP support.
<lns_address>
is the IP address of the LNS node with which this APN will communicate.
<tunnel_ctxt_name>
is the L2TP context in which the L2TP tunnel is configured.
<agw_ip_address>
is the local IP address of the GGSN in which this APN template is configured.
<map_name>
is the preconfigured crypto map (ISAKMP or manual) which is to use for L2TP.