3Com 3C13636 Configuration Manual page 1235

3Com Router 3000 Ethernet Family
Configuration Guide
II. Network diagram
PC1
PC2
Figure 2-8 Network diagram for interconnecting a single user with its headquarters
III. Configuration procedure
1) Configuration on user side
Create a dialup network, using the access number specified on the router of 3Com1
and accepting network addresses assigned by LNS to users.
Input username "vpdnuser@huawei.com" in the pop-up dial-in terminal window, with
password being "Hello" (the username and password have been registered on LNS of
the company).
2) Configuration on router 3Com1 (on LAC side)
# Set username and password.
[3Com1] local-user vpdnuser
[3Com1-luser-vpdnuser] password simple Hello
[3Com1-luser-vpdnuser] service-type ppp
[3Com1-luser-vpdnuser] quit
# Configure IP address on interface Async1/0/0.
[3Com1] interface Async1/0/0
[3Com1-Async1/0/0] ip address 202.38.160.1 255.255.255.0
[3Com1-Async1/0/0] ppp authentication-mode chap domain huawei.com
[3Com1-Async1/0/0] quit
# Apply local authentication to the domain user huawei.com.
[3Com1] domain huawei.com
[3Com1-isp-huawei.com] scheme local
# Set an L2TP group and configure related attributes.
[3Com1] l2tp enable
[3Com1] l2tp-group 1
[3Com1-l2tp1] tunnel name LAC
[3Com1-l2tp1] start l2tp ip 202.38.161.2 domain huawei.com
Modem
PSTN
Quidway 1
ISDN
3Com Corporation
WAN
Internet Tunnel
LAC
2-28
Chapter 2 Configuration of L2TP
Quidway 2
LNS
Headquarter