H3C Technologies H3C SecPath F5020 - Manual (Page 42)

34
To configure an LAC to automatically establish an L2TP tunnel:
Step Command Remarks
1. Enter system view. system-view N/A
2. Create a virtual PPP interface
and enter its view.
interface virtual-ppp
interface-number By default, no virtual PPP interface
exists.
3. Configure the IP address of the
virtual PPP interface.
• Assign an IP address to the
virtual PPP interface.
ip address address mask
• Enable IP address negotiation
on the virtual PPP interface.
ip address ppp-negotiate
By default, no IP address is
assigned.
4. Configure the peer to be
authenticated.
See " Configuring PPP and MP." N/A
5. Configure the LAC to
automatically establish an L2TP
tunnel with the LNS.
l2tp-auto-client l2tp-group
group-number
By default, an LAC does not
establish an L2TP tunnel.
An L2TP tunnel automatically
established in LAC-auto-initiated
mode exists until you remove the
tunnel by using the undo
l2tp-auto-client or undo
l2tp-group group-number
command.
6. (Optional.) Configure the
description for the interface.
description text
By default, the description of an
interface is in the format of
interface-name Interface, for
example, Virtual-PPP254
Interface.
7. Set the MTU size of the
interface.
mtu size The default setting is 1500 bytes.
8. (Optional.) Set the keepalive
interval.
timer-hold seconds The default setting is 10 seconds.
9. (Optional.) Set the keepalive
retry limit.
timer-hold retry retry The default setting is 5.
10. (Optional.) Configure the
expected bandwidth of the
interface.
bandwidth bandwidth-value
By default, the expected
bandwidth (in kbps) is interface
baudrate divided by 1000.
11. (Optional.) Restore the default
settings for the interface.
default N/A
12. (Optional.) Bring up the
interface.
undo shutdown By default, an interface is up.
Configuring an LNS
An LNS responds to the tunneling requests from an LAC, authenticates users, and assigns IP addresses to
users.