Method used to configure the default L2TP on the USG6000

You can configure the default L2TP on the USG6000 as follows:
Enable the L2TP.
Note:
When the L2TP is disabled, you can still make the related configuration. However, the configuration does not take effect.
Choose Network > L2TP > L2TP.
In Configure L2TP, select Enable and click Apply.
If the system displays information indicating a successful operation, the L2TP is normally enabled.
Click New in L2TP Group List or select the default group.
Note:
By default, an L2TP group in LNS type exists. The default group can be modified instead of being deleted. Groups created by clicking New are not default groups.
After selecting the default LNS group, if you do not specify Peer Tunnel Name, the group serves as the default LNS group.
During tunnel negotiation, the LNS searches for Peer Tunnel Name of each non-default group based on the configured sequence, and matches Peer Tunnel Name with Local Tunnel Name on the LAC end. If Peer Tunnel Name of a certain L2TP group matches Local Tunnel Name on the LAC end, the L2TP group is used for negotiation and tunnel establishment. If Peer Tunnel Name of no L2TP group matches Local Tunnel Name, the default group is used for negotiation.
If Peer Tunnel Name is specified for the default group, the default group becomes a non-default group. Then, the LNS has no default group. If Peer Tunnel Name of no L2TP group matches Local Tunnel Name, the LNS discards the negotiation packet and the tunnel fails to be established.

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