3Com 10014299 manual Create/Delete L2TP Group, Create/Delete a Virtual Template

Basic Configuration at LNS 609

Create an L2TP Group To configure related parameters of L2TP, L2TP group should be added. The L2TP group is used to configure the L2TP functions on the router and facilitate the networking applications of one-to-one, one-to-multiple, multiple-to-one and multiple-to-multiple connections between the LAC and LNS. L2TP group is numbered separately on the LAC and the LNS. Hence, it is only necessary to keep the corresponding relations between the related configurations of L2TP group at LAC and LNS side (e.g., the peer end name of the tunnel originating L2TP connection request and the LNS address).

After a L2TP group is created, other configurations related to this L2TP group, such as local name, originating L2TP connection request and LNS address, can be performed in L2TP group view. L2TP group1 works as the default L2TP group.

Perform the following configurations in system view.

Table 671 Create/Delete L2TP Group

Operation	Command
Create a L2TP group	l2tp-groupgroup-number
Delete a L2TP group	undo l2tp-group group-number

Create a Virtual Virtual template is mainly used to configure working parameters of the virtual Template interfaces dynamically created by the router in the process of operation, such as

configuring MP-bounding logic interface and L2TP logic interface.

Perform the following configurations in system view.

Table 672 Create/Delete a Virtual Template

Operation	Command
Create a virtual template	interface virtual-template
	virtual-template-number
Delete a virtual template	undo interface virtual-template
	virtual-template-number

By far, the virtual template in L2TP application only supports one peer but does not support IP unnumbered, that is, the virtual template has to be configured with its own IP address.

Dial-up users should only be allocated with negotiation IP addresses by LNS dynamically, not be configured with fix addresses.

When using the ip pool command to configure the address allocated to the peer, the user should ensure that the virtual template address and the address pool are on the same segment.

Configure the Name of The LNS can receive the requests of establishing tunnels from different LACs using the Receiving End of the different virtual templates. After a request of this is received, the LNS will check

Tunnel whether the name of LAC is compliant with that of the legal remote end of the tunnel first, then decide whether the tunnel will be created.

Perform the following configurations in L2TP group view.