3Com MSR 50 Series Configuration Manual page 1616

1616 C 82: L2TP C
HAPTER ONFIGURATION
[LAC] interface async 1/0
[LAC-Async1/0] ip address 1.1.1.1 255.255.255.0
[LAC-Async1/0] ppp authentication-mode chap
[LAC-Async1/0] quit
# Enable L2TP.
[LAC] l2tp enable
# Create an L2TP group and configure its attributes.
[LAC] l2tp-group1
[LAC-l2tp1] tunnel name LAC
[LAC-l2tp1] start l2tp ip 1.1.2.2 fullusername vpdnuser
# Enable tunnel authentication and specify the tunnel authentication password.
[LAC-l2tp1] tunnel authentication
[LAC-l2tp1] tunnel password simple aabbcc
3 Configure the LNS
# Configure IP addresses for the interfaces. (Omitted)
# Create a local user named vpdnuser, set the password, and enable PPP service.
Note that the username and password must match those configured on the client.
<LNS> system-view
[LNS] local-user vpdnuser
[LNS-luser-vpdnuser] password simple Hello
[LNS-luser-vpdnuser] service-type ppp
[LNS-luser-vpdnuser] quit
# Configure local authentication for the VPN user.
[LNS] domain system
[LNS-isp-system] authentication ppp local
[LNS-isp-system] ip pool 1 192.168.0.2 192.168.0.100
[LNS-isp-system] quit
# Enable L2TP.
[LNS] l2tp enable
# Configure the virtual interface template.
[LNS] interface virtual-template 1
[LNS-virtual-template1] ip address 192.168.0.1 255.255.255.0
[LNS-virtual-template1] ppp authentication-mode chap domain system
[LNS-virtual-template1] remote address pool 1
[LNS-virtual-template1] quit
# Create an L2TP group, specify the virtual interface template for receiving calls
and specify the name of the tunnel on the peer.
[LNS] l2tp-group 1
[LNS-l2tp1] allow l2tp virtual-template 1 remote LAC