90
[LAC-l2tp1] tunnel password simple aabbcc
[LAC-l2tp1] quit
2. Configure the LNS:
# Configure IP addresses for the interfaces. (Details not shown.)
# Create a local user named vpdnuser, set the password, and enable the PPP service.
<LNS> system-view
[LNS] local-user vpdnuser class network
[LNS-luser-network-vpdnuser] password simple Hello
[LNS-luser-network-vpdnuser] service-type ppp
[LNS-luser-network-vpdnuser] quit
# Configure local authentication for PPP users in ISP domain system.
[LNS] domain system
[LNS-isp-system] authentication ppp local
[LNS-isp-system] quit
# Enable L2TP.
[LNS] l2tp enable
# Configure PPP address pool.
[LNS] ip pool aaa 192.168.0.10 192.168.0.20
[LNS] ip pool aaa gateway 192.168.0.1
# Create interface Virtual-Template 1, specify the PPP authentication mode as CHAP, and use the
address pool aaa for the client.
[LNS] interface virtual-template 1
[LNS-virtual-template1] ppp authentication-mode chap domain system
[LNS-virtual-template1] remote address pool aaa
[LNS-virtual-template1] quit
# Create L2TP group 1 in LNS mode.
[LNS] l2tp-group 1 mode lns
# Configure the local tunnel name as LNS.
[LNS-l2tp1] tunnel name LNS
# Specify Virtual-Template 1 for receiving calls from a specific LAC.
[LNS-l2tp1] allow l2tp virtual-template 1 remote LAC
# Enable tunnel authentication, and specify the tunnel authentication key as aabbcc.
[LNS-l2tp1] tunnel authentication
[LNS-l2tp1] tunnel password simple aabbcc
[LNS-l2tp1] quit
3. On the remote system, enter vpdnuser as the username and Hello as the password in the dial-up
network window to dial a connection.
Verifying the configuration
After the dial-up connection is established, the remote system can obtain an IP address and can ping the
private IP address of the LNS.
# On the LNS, use the display l2tp tunnel command to check the established L2TP tunnels.
[LNS] display l2tp tunnel
LocalTID RemoteTID State Sessions RemoteAddress RemotePort RemoteName
196 3542 Established 1 1.1.2.1 1701 LAC
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