3Com 3C13636 Configuration Manual page 1221

3Com Router 3000 Ethernet Family
Configuration Guide
users on the LAC and maintaining a permanent connection for it. The IP packets of all
these actual users are forwarded to the LNS through this virtual user.
To use the LAC as the client, you must add the following configurations in addition to
other LAC configurations:
Create a virtual template interface
Configure the parameters of the virtual template interface, including IP address,
PPP authentication mode, and username and password for PPP authentication
Enable the LAC client to set up L2TP tunnel
Note:
When the LAC is functioning as the L2TP client, you must set the L2TP session
idle-timeout timer to 0 or disable it, preventing the session of the virtual user is
disconnected when no data is transmitted or received.
I. Creating a virtual template interface
Perform the following configuration in system view.
Table 2-16 Create/delete a virtual template interface
Create a virtual template interface
Delete a virtual template interface
II. Configuring the parameters of the virtual template interface
Perform the following configuration in virtual template interface view.
Table 2-17 Configure the parameters of the virtual template interface
Assign an IP address to the virtual
template interface
Configure a PPP authentication mode
Configure the username for CHAP
authentication
Configure the password for CHAP
authentication
Operation
Operation
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Chapter 2 Configuration of L2TP
Command
interface
virtual-template-number
undo interface
virtual-template-number
Command
ip address address mask
ppp authentication-mode { pap |
chap }
ppp chap user user-name
ppp chap password { simple | cipher }
password
virtual-template
virtual-template