Table of Contents

About the Documentation
E Series and JunosE Documentation and Release Notes
E Series and JunosE Text and Syntax Conventions
Obtaining Documentation
Documentation Feedback
Requesting Technical Support
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
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
Virtual Router
L2TP Dial-Out Outgoing Call Setup Details
Access-Request Message
Access-Accept Message
Outgoing Call
Mutual Authentication
Route Installation
Configuring L2TP Dial-Out
Configuring L2TP Dial-Out
Creating an L2TP Dial-Out Session
Specifying the Maximum Timeout Period for Establishing an L2TP Dial-Out Session
Specifying the Duration for an L2TP Dial-Out Session to Remain in Dormant State
Specifying the Maximum Triggers to Buffer for an L2TP Dial-Out Session
Deleting an L2TP Dial-Out Session
Resetting an L2TP Dial-Out Session
Configuring a LAC Device in an L2TP Tunnel
Mapping User Domain Names to L2TP Tunnels from Domain Map Tunnel Mode
Mapping User Domain Names to L2TP Tunnels from Tunnel Group Tunnel Mode
Configuring an LNS Device in an L2TP Tunnel
Configuring an LNS
Configuration Commands
aaa domain-map
aaa tunnel assignment-id-format
aaa tunnel client-name
aaa tunnel ignore
aaa tunnel password
default-upper-type mlppp
disable proxy lcp
enable proxy authenticate
l2tp destination profile
l2tp disable challenge
l2tp ignore-receive-data-sequencing
local host
local ip address
medium ipv4
radius connect-info-format
remote host
tunnel group
tunnel password
Monitoring L2TP Dial-Out
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
Verifying the Cause Codes for Termination of L2TP Sessions
L2TP Disconnect Cause Codes
L2TP Terminate Reasons
PPP Terminate Reasons
Configuring Custom Mappings for PPP Terminate Reasons
Monitoring Consolidated L2TP Details
Monitoring Detailed Configuration Information for Specified Destinations
Monitoring Global Configuration Status on E Series Routers
Monitoring Locked Out Destinations
Monitoring L2TP Disconnect Cause-Codes
Monitoring Statistics on the Cause of a Session Disconnection
Monitoring L2TP Sessions
Monitoring Detailed Configuration Information about Specified Sessions
Monitoring Configured and Operational Summary Status
Monitoring Commands
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