Configuring An Lns - H3C SR8800-F Configuration Manual

Specify the PPP authentication method for the PPP user.
Configure the username and password of the PPP user.
The LNS then authenticates the PPP user. For more information, see
•
Trigger the LAC to automatically establish an L2TP tunnel.
To configure an LAC to automatically establish an L2TP tunnel:
Step
1. Enter system view.
2. Create a virtual PPP interface
and enter its view.
3. Configure the IP address of the
virtual PPP interface.
4. Configure the peer to be
authenticated.
5. Configure the LAC to
automatically establish an
L2TP tunnel with the LNS.
6. (Optional.) Set the description
for the interface.
7. Set the MTU size of the
interface.
8. (Optional.) Set the keepalive
interval.
9. (Optional.) Set the keepalive
retry limit.
10. (Optional.) Set the expected
bandwidth for the interface.
11. (Optional.) Restore the default
settings for the interface.
12. (Optional.) Bring up the
interface.

Configuring an LNS

An LNS responds to the tunneling requests from an LAC, authenticates users, and assigns IP
addresses to users.
Command
system-view
interface virtual-ppp
interface-number
•
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
See "Configuring PPP."
l2tp-auto-client l2tp-group
group-number
description text
mtu size
timer-hold seconds
timer-hold retry retries
bandwidth bandwidth-value
default
undo shutdown
261
"Configuring PPP."
Remarks
N/A
By default, no virtual PPP
interface exists.
By default, no IP address is
configured.
N/A
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.
By default, the description of an
interface is in the format of
interface-name Interface, for
example, Virtual-PPP254
Interface.
The default setting is 1500 bytes.
The default setting is 10 seconds.
The default setting is 5.
By default, the expected
bandwidth (in kbps) is interface
baudrate divided by 1000.
N/A
By default, an interface is up.