Juniper JUNOSE 11.0.X MULTICAST ROUTING, Configuration Manual

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Chapter 12
Configuring an L2TP LAC
An L2TP access concentrator (LAC) receives packets from a remote client and forwards
them to an L2TP network server (LNS), on a remote network. You can configure your
E Series router to function as an LAC.
This chapter includes the following topics that provide information for configuring
an L2TP LAC on the E Series router:
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LAC Configuration Prerequisites on page 337
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Modifying L2TP LAC Default Settings for Managing Destinations, Tunnels, and
Sessions on page 338
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Generating UDP Checksums in Packets to L2TP Peers on page 339
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Specifying a Destruct Timeout for L2TP Tunnels and Sessions on page 339
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Preventing Creation of New Destinations, Tunnels, and Sessions on page 340
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Shutting Down Destinations, Tunnels, and Sessions on page 342
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Specifying the Number of Retransmission Attempts on page 343
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Configuring Calling Number AVP Formats on page 343
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Mapping a User Domain Name to an L2TP Tunnel Overview on page 352
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Mapping User Domain Names to L2TP Tunnels from Domain Map Tunnel
Mode on page 353
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Mapping User Domain Names to L2TP Tunnels from Tunnel Group Tunnel
Mode on page 357
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Configuring the RX Speed on the LAC on page 359
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Managing the L2TP Destination Lockout Process on page 360
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Managing Address Changes Received from Remote Endpoints on page 363
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Configuring LAC Tunnel Selection Parameters on page 364
LAC Configuration Prerequisites
Before you begin configuring the router as a LAC, perform the following steps:
1.
Create a virtual router.
host1(config)# virtual-router west
LAC Configuration Prerequisites
■ 337