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Managing L2TP Destinations, Tunnels, and Sessions
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Configuring Disconnect Cause Information
Copyright © 2010, Juniper Networks, Inc.
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When the router is established as an LNS you can manage the destinations, tunnels and
sessions.
Enable the verification of data integrity via UDP.
Specify the time period for which the router maintains dynamic destinations, tunnels,
or sessions after termination.
Prevent the creation of new sessions, tunnels, and destinations.
Close and reopen all or selected destinations, tunnels, and sessions.
Configure drain timeout operations, which control the amount of time a disconnected
LAC tunnel waits before restarting after receiving a restart request.
Configure how many times the router retries a transmission if the initial attempt is
unsuccessful.
Generating UDP Checksums in Packets to L2TP Peers on page 339
Specifying a Destruct Timeout for L2TP Tunnels and Sessions on page 339
Preventing Creation of New Destinations, Tunnels, and Sessions on page 340
Shutting Down Destinations, Tunnels, and Sessions on page 341
Specifying the Number of Retransmission Attempts on page 342
You can configure an E Series LNS to convey PPP-related disconnect cause information
to its L2TP peer. Enabling an LNS to send disconnect cause information to an LAC is
particularly useful in an environment where the LAC initiates tunnels without a client's
request, knowledge, or approval. In this type of environment, all PPP signaling for the
tunnel session takes place between the LNS and the client, without active participation
of the LAC. As a result, the LAC is not aware of the reason that a session has disconnected.
NOTE: An E Series LAC does not send PPP Disconnect Case Code AVPs to an LNS. In
the event that a third-party LAC does send the AVP to an E Series LNS, the LNS discards
the AVP.
1. Generating the Disconnect Cause AVP Globally on page 378
2. Generating the Disconnect Cause AVP with a Host Profile on page 378
Chapter 13: Configuring an L2TP LNS
377
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Troubleshooting
