User Manual - Configuration Guide (Volume 3)
Versatile Routing Platform Chapter 2
Configuration of L2TP
2-8
Table VPN-2-4 L2TP attribute table
Attribute value Name Meaning
100 Tunnel-Type Tunnel type (L2TP=1).
101 L2TP-Tunnel-Password L2TP tunnel password.
102 Local-Name Local name of the channel.
103 LNS-IP-Address IP address of LNS.
104 Tunnel-Medium-Type Medium type of the tunnel (IP=1).
105 Vpdn Group Number VPDN group number.

IV. Set the connection request to originate L2TP channel.

After dial-in users pass the authentication of VPN users, L AC is in charge of originating
the channel establishment request to LNS and set the correspondi ng IP a ddress es of
LNS side.
In addition to specifying IP addresses of LNS side, LAC side provides thr ee user
authentication modes: according to “user-name”, the specific “domain-name” and the
“dialed-number”.
At most five LNS IP addresses can be set, which can be s earched according t o the
sequence of the configured IP addresses of users.
Perform the following task in the configuration mode of VPDN group.
Table VPN-2-5 Set connection request to originate L2TP channel
Operation Command
Configure the connection request to originate the
channel. request dialin l2tp ip ip-address [ ip ip-address ... ]
{ domain domain-name | fullusername user-name }
Cancel the connection request to originate the channel. no request dialin l2tp [ ip ip-address ]
By default, the channel connection request is originated according to the full “ user-
name”.
2.2.3 Configuring at LNS Side

I. Enable/disable VPDN

Perform the following task in global configuration mode.
Table VPN-2-6 Enable/disable VPDN
Operation Command
Enable VPDN to run. vpdn enable
Disable VPDN to run. no vpdn enable
Disable VPDN running by default.