3Com 3C13636 Configuration Manual page 1237

3Com Router 3000 Ethernet Family
Configuration Guide
private addresses, such as 10.8.0.0, the users cannot directly access the internal
servers of their own enterprises via the Internet in normal circumstances. However,
they can access the resources on the intranets by creating multi-instance-supported
VPN.
Suppose the domain names of 01 enterprise headquarters and 02 enterprise
headquarters are respectively 263.net and 163.net, and PC1 and PC2 are respectively
01 enterprise user and 02 enterprise user.
II. Network diagram
PC1
PC2
Figure 2-9 Network diagram of multi-instance-supported L2TP
III. Configuration procedure
1) Configuration at user side
Set up a dial network using the access number of 3Com1 Router, and accept
addresses assigned by the LNS server to users. On PC1, the user should enter the
user name vpdn1@263.net and the password 11111 in the pop-up Dial Terminal
Window, supposing that the user name and password have been registered with the
LNS.
On PC2, the user should enter the user name vpdn2@163.net and the password
22222 in the pop-up Dial Terminal Window, supposing that the user name and
password have been registered with the LNS.
2) Configuration on 3Com1 Router (at LAC side)
# Set username and password.
<3Com1> system-view
[3Com1] local-user vpdn1.net
[3Com1-luser-vpdn1] password simple 11111
[3Com1-luser-vpdn1] service-type ppp
[3Com1-luser-vpdn1] quit
[3Com1] local-user vpdn2
[3Com1-luser-vpdn2] password simple 22222
Modem
PSTN
ISDN
3Com Corporation
Quidway1
Internet Tunnel
LAC
WAN
2-30
Chapter 2 Configuration of L2TP
01 enterprise
headquarters
Quidway2
LNS
02 enterprise
headquarters