Configuring Lac; Establishing The Configuration Task - Huawei AR1200 series Configuration Manual

Huawei AR1200 Series Enterprise Routers
Configuration Guide - VPN

4.3 Configuring LAC

After being configured as an LAC, a device determines whether the user is an access user and
whether to initiate a connection to an LNS.

4.3.1 Establishing the Configuration Task

Before configuring an LAC, familiarize yourself with the applicable environment, complete the
pre-configuration tasks, and obtain the required data. This can help you complete the
configuration task quickly and accurately.
Applicable Environment
A device does not send a request for establishing an L2TP tunnel with another device or an LNS
server until certain conditions are met.
To judge whether a user is an access user and whether a connection with the LNS needs to be
established, you must set conditions to distinguish the information about the access user and
specify the IP address of the LNS.
Either of two triggering conditions, namely, a full user name, or the specified domain name of
a user, is needed to initiate the L2TP connection request.
When initiating a tunnel establishment request, the LAC needs to send the source address of the
tunnel to the LNS.
Pre-configuration Tasks
Before configuring the LAC, complete the following tasks:
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Data Preparation
To configure the LAC, you need the following data.
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Issue 01 (2012-04-20)
Configuring Basic L2TP Functions
Data
Number of the L2TP group
IP address of the LNS
User full name or domain name used to trigger an L2TP connection
Interface type and interface number used to initiate the request for tunnel establishment
User name and password used for authentication
(For RADIUS authentication) Authentication scheme name, RADIUS template name,
IP addresses and interfaces of RADIUS servers, key, and retransmission times
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