Juniper JUNOSE SOFTWARE 11.2.X - BROADBAND ACCESS CONFIGURATION GUIDE 7-20-2010 Configuration Manual page 11

Chapter 2
Copyright © 2010, Juniper Networks, Inc.
Configuring the Route-Download Server to Download Routes . . . . . . . . . . . 69
Using the AAA Logical Line Identifier to Track Subscribers . . . . . . . . . . . . . . . . . . 73
How the Router Obtains and Uses the LLID . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
RADIUS Attributes in Preauthentication Request . . . . . . . . . . . . . . . . . . . . . . 74
Considerations for Using the LLID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Configuring the Router to Obtain the LLID for a Subscriber . . . . . . . . . . . . . . 75
Troubleshooting Subscriber Preauthentication . . . . . . . . . . . . . . . . . . . . . . . . 78
Using VSAs for Dynamic IP Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Traffic Shaping for PPP over ATM Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Mapping Application Terminate Reasons to RADIUS Terminate Codes . . . . . . . . . 81
Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Configuring Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Limiting Active Subscribers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Notifying RADIUS of AAA Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Configuring Standard RADIUS IPv6 Attributes for IPv6 Neighbor Discovery Router
Advertisements and DHCPv6 Prefix Delegation . . . . . . . . . . . . . . . . . . . . . . . 87
Duplicate IPv6 Prefix Check Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Configuring Duplicate IPv6 Prefix Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Propagation of LAG Subscriber Information to AAA and RADIUS . . . . . . . . . . . . . 89
Configuring the SRC Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Retrieval of DSL Line Rate Information from Access Nodes Overview . . . . . . . . . 99
DHCPv6 Local Address Pools for Allocation of IPv6 Prefixes Overview . . . . . . . 100
DHCPv6 Prefix Delegation Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Order of Preference in Determining the Local Address Pool for Allocating
Prefixes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Order of Preference in Allocating Prefixes and Assigning DNS Addresses to
Requesting Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Configuring the DHCPv6 Local Address Pools . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Limitation on the Number of Prefixes Used by Clients . . . . . . . . . . . . . . . . . 106
Using DHCPv6 Local Address Pools for Prefix Delegation over non-PPP Links
Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Monitoring and Troubleshooting Remote Access . . . . . . . . . . . . . . . . . . . . . 109
Setting Baselines for Remote Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Setting a Baseline for AAA Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Setting a Baseline for AAA Route Downloads . . . . . . . . . . . . . . . . . . . . . . . . . 111
Setting a Baseline for COPS Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Setting a Baseline for Local Address Pool Statistics . . . . . . . . . . . . . . . . . . . . 111
Setting a Baseline for RADIUS Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Setting the Baseline for SRC Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
How to Monitor PPP Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Monitoring AAA Accounting Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Monitoring AAA Accounting Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Monitoring Accounting Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Monitoring Specific Virtual Router Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Monitoring the Default AAA Authentication Method List . . . . . . . . . . . . . . . . . . . . 114
Monitoring Domain and Realm Name Delimiters . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Monitoring Mapping Between User Domains and Virtual Routers . . . . . . . . . . . . 115
Monitoring Tunnel Subscriber Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Table of Contents
xi