Command Reference Guide

3Com Router 5000 Family and Router 6000 Family start l2tp ● 69
Command Reference
start l2tp
Purpose Use the start l2tp command to specify conditions triggering the local end to
place calls when it works as L2TP LAC.
Use the undo start l2tp command to delete the specified triggering conditions.
Syntax start l2tp { ip ip-addr [ ip ip-addr ] [ ip ip-addr ] ... } { domain
domain-name | fullusername user-name }
undo start
Parameters ip ip-addr
IP address of the peer end of the tunnel (LNS). Five IP
addresses can be set at most to provide LNS backup for
each other.
domain-name
Domain name triggering connection requests,
consisting of a case-sensitive character string from 1 to
30 characters long.
user-name
Full username triggering connection requests,
consisting of a case-sensitive character string from 1 to
32 characters long.
Example Specify the users using the domain name of “3Com.com” to be VPN users, with IP
address of the L2TP access server of the headquarters being 202.38.168.1.
[3Com-l2tp1] start l2tp ip 202.38.168.1 domain 3Com.com
View This command can be used in the following views:
■ L2TP Group view
Description This command is used on LAC side to specify IP address of LNS; it can support several
connection request triggering conditions, specifically,
■ Initiating tunnel connection request according to the user’s domain name. For
example, if domain name of user’s company is 3Com.com, the user with this
domain name can be specified as a VPN user.
■ Deciding whether a user is a VPN user according to its dialed number. For example,
if the number 8810188 is specified to be the special service number, the access
user who dials this number is a VPN user.
■ Specifying a user to be a VPN user by directly specifying full username.
For a VPN user, the local end (LAC) will send L2TP tunnel connection request to a
certain LNS according to the configured LNS priority or order. If receiving response
from the LNS within the specified period, LAC will take it as the peer end of the
tunnel. If not, LAC will send tunnel connection request to the next LNS.