Client-Initialized Vpn - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
[3Com] interface virtual-template 1
[3Com-virtual-template1] ip address 192.168.0.1 255.255.255.0
[3Com-virtual-template1] ppp authentication-mode domain chap
[3Com-virtual-template1] remote address pool 1
# Configure local name and remote name of the tunnel on LNS side.
[3Com] l2tp-group 1
[3Com-l2tp1] tunnel name LNS
[3Com-l2tp1] allow l2tp virtual-template 1 remote A8010
# Enable tunnel authentication and set tunnel authentication password.
[3Com-l2tp1] tunnel authentication
[3Com-l2tp1] tunnel password simple 3Com

2.5.2 Client-Initialized VPN

I. Network requirements
A VPN user access company headquarters following the procedure below:
It first connects to the Internet, and then originates a tunnel setup request to LNS. Upon
the acceptance of this request, a virtual tunnel is established between LNS and the
VPN user for the data transmission between the user and the company headquarters.
II. Network diagram
Cleck going
on erramds
Figure 2-7 Network diagram of Client-Initialized VPN
III. Configuration procedure
1) Configuration on user side:
Make sure that the user-side host is installed with L2TP client software, WinVPN Client
for example, and the user is connected to the Internet through a dial-up link before
proceeding to perform the following configuration tasks. (The configuration procedure
depends on the installed client software).
# Set VPN username to "vpdnuser" and password to "Hello" on user side.
# Set IP address of LNS to the Internet interface address of the router (In this example
IP address of the serial port connected with tunnel on LNS side is 202.38.160.2).
Internet
PSTN
NAS
Tunnel
3Com Corporation
2-26
Chapter 2 Configuration of L2TP
LNS
Company
headquarter