H3c-technologies H3C SecPath F5020 Manual do Utilizador descarregar pdf (Página 42)

To configure an LAC to automatically establish an L2TP tunnel:

Ste

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.

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