Table of Contents

About the Documentation
E Series and JunosE Documentation and Release Notes
Audience
E Series and JunosE Text and Syntax Conventions
Obtaining Documentation
Documentation Feedback
Requesting Technical Support
Overview
L2TP Functionalities
L2TP Overview
L2TP Terminology
Packet Fragmentation
L2TP Deployment
Implementing L2TP
Sequence of Events on the LAC
Sequence of Events on the LNS
L2TP Platform and Module Requirements
L2TP Module Requirements
ERX7xx Models, ERX14xx Models, and the ERX310 Router
E120 Router and E320 Router
L2TP Platform Considerations
L2TP References
L2TP Sessions and Tunnels
Sessions and Tunnels Supported
Stateful Line Module Switchover Platform Considerations
Methods of Mapping a User Domain to an L2TP Tunnel
Mapping a User Domain Name to an L2TP Tunnel Overview
Termination of PPP and L2TP Subscriber Sessions
VSAs for Dynamic IP Interfaces Overview
Traffic Shaping for PPP over ATM Interfaces
Mapping Application Terminate Reasons and RADIUS Terminate Codes Overview
How L2TP Dial-Out Works
L2TP Dial-Out Overview
L2TP Dial-Out Platform Considerations
L2TP Dial-Out References
L2TP Dial-Out Network Model
L2TP Dial-Out Process
L2TP Dial-Out Operational States
Chassis
Virtual Router
Targets
Sessions
L2TP Dial-Out Outgoing Call Setup Details
Access-Request Message
Access-Accept Message
Outgoing Call
Mutual Authentication
Route Installation
Configuration
Configuring Settings for L2TP Destinations, Tunnels, and Sessions
Modifying L2TP LAC Default Settings for Managing Destinations, Tunnels, and Sessions
Generating UDP Checksums in Packets to L2TP Peers
Specifying a Destruct Timeout for L2TP Tunnels and Sessions
Preventing Creation of New Destinations, Tunnels, and Sessions
Preventing Creation of New Destinations, Tunnels, and Sessions on the Router
Preventing Creation of New Tunnels and Sessions at a Destination
Preventing Creation of New Sessions for a Tunnel
Specifying a Drain Timeout for a Disconnected Tunnel
Shutting Down Destinations, Tunnels, and Sessions
Closing and Preventing Existing and New Destinations, Tunnels, and Sessions on the Router
Closing and Preventing Existing and New Tunnels and Sessions for a Destination
Closing and Preventing Existing and New Sessions in a Specific Tunnel
Closing a Specific Session
Specifying the Number of Retransmission Attempts
Configuring an L2TP LAC
LAC Configuration Prerequisites
Mapping User Domain Names to L2TP Tunnels from Domain Map Tunnel Mode
Mapping User Domain Names to L2TP Tunnels from Tunnel Group Tunnel Mode
Mechanisms for Selecting Tunnels for PPP User Sessions
Configuring LAC Tunnel Selection Parameters
Configuring the Failover Between Preference Levels Method
Configuring the Failover Within a Preference Level Method
Configuring the Maximum Sessions per Tunnel
Configuring the Weighted Load Balancing Method
L2TP Destination Lockout Feature
Managing Address Changes Received from Remote Endpoints
Configuring LAC Tunnel Selection Parameters
Configuring the Failover Between Preference Levels Method
Configuring the Failover Within a Preference Level Method
Configuring the Maximum Sessions per Tunnel
Configuring the Weighted Load Balancing Method
Generating RX Speed Attribute Value Pair (AVP) on the LAC
Configuring the RX Speed on the LAC
Calling Number AVP in ICRQ Packets
Configuring Calling Number AVP Formats
Calling Number AVP 22 Configuration Tasks
Configuring the Fallback Format
Disabling the Calling Number AVP
Configuration Commands
aaa domain-map
aaa tunnel calling-number-format-fallback
aaa tunnel assignment-id-format
aaa tunnel client-name
aaa tunnel ignore
aaa tunnel password
aaa tunnel calling-number-format
address
bundled-group-id
bundled-group-id-overrides-mlppp-ed
client-name
identification
default-upper-type mlppp
disable proxy lcp
enable proxy authenticate
ip router-id
l2tp checksum
l2tp destruct-timeout
l2tp destination profile
l2tp disable calling-number-avp
l2tp disable challenge
l2tp drain
l2tp drain destination
l2tp drain tunnel
l2tp ignore-receive-data-sequencing
l2tp retransmission
l2tp shutdown
l2tp shutdown destination
l2tp shutdown session
l2tp shutdown tunnel
l2tp tunnel short-drain-timeout
local host
local ip address
max-sessions
medium ipv4
password
preference
radius remote-circuit-id-delimiter
radius remote-circuit-id-format
radius override calling-station-id remote-circuit-id
radius connect-info-format
radius calling-station-format
remote host
router-name
server-name
session-out-of-resource-result-code-override
source-address
tunnel
tunnel group
type
tunnel password
virtual-router
Administration
Verifying Domain Maps and L2TP Tunnels with AAA
Monitoring the Mapping for User Domains and Virtual Routers with AAA
Monitoring Configuration of Tunnel Parameters with AAA
Monitoring Configured Tunnel Groups with AAA
Verifying the L2TP Tunnel Aggregated Settings
Monitoring Global Configuration Status on E Series Routers
Monitoring L2TP Destination Settings
Monitoring Detailed Configuration Information for Specified Destinations
Monitoring Configured and Operational Status of all Destinations
Monitoring Locked Out Destinations
Monitoring Configured L2TP Destination Profiles or Host Profiles
Viewing the Disconnect Cause-Codes for PPP Sessions
Monitoring Statistics on the Cause of a Session Disconnection
Viewing the Configured L2TP Session Details
Monitoring Detailed Configuration Information about Specified Sessions
Monitoring Configured and Operational Summary Status
Viewing L2TP Switch-Profiles
Monitoring Configured Switch Profiles on Router
Monitoring L2TP Tunnel Settings
Monitoring Detailed Configuration Information about Specified Tunnels
Monitoring Configured and Operational Status of All Tunnels
Monitoring L2TP Dial-Out Settings
Monitoring Chassis-wide Configuration for L2TP Dial-out
Monitoring Dial-out Targets within the Current VR Context
Monitoring Operational Status within the Current VR Context
Monitoring Status of Dial-out Sessions
Monitoring Commands
show aaa domain-map
show aaa tunnel-group
show aaa tunnel-parameters
show l2tp
show l2tp destination
show l2tp destination lockout
show l2tp destination profile
show l2tp received-disconnect-cause-summary
show l2tp dial-out
show l2tp dial-out session
show l2tp dial-out target
show l2tp dial-out virtual-router
show l2tp session
show l2tp switch-profile
show l2tp tunnel
Index
Index