Chapter 18 Dhcp Local Server Overview; Embedded Dhcp Local Server Overview; Dhcp Local Server And Client Configuration - Juniper JUNOSE SOFTWARE 11.0.X - BROADBAND ACCESS CONFIGURATION GUIDE 4-1-2010 Configuration Manual

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Chapter 18
DHCP Local Server Overview

Embedded DHCP Local Server Overview

DHCP Local Server and Client Configuration

This chapter provides an overview of the DHCP local server on the E Series router.
This chapter contains the following sections:
Embedded DHCP Local Server Overview on page 463
Equal-Access Mode Overview on page 464
Standalone Mode Overview on page 466
DHCP Local Server Prerequisites on page 468
DHCP Local Server Configuration Tasks on page 469
The router offers an embedded DHCP server, known as the DHCP local server. The
DHCP local server has two modes: equal-access and standalone.
NOTE: E Series routers also support an embedded DHCP version 6 (DHCPv6) local
server. The DHCPv6 local server provides a subset of the features of the DHCP local
server. For information about configuring the DHCPv6 local server, see "Configuring
the DHCPv6 Local Server" on page 483.
In equal-access mode, the DHCP local server works with the Juniper Networks
SRC software to provide an advanced subscriber configuration and management
service.
In standalone mode, the DHCP local server provides a basic DHCP service, and
also allows you to configure AAA authentication for incoming DHCP clients. Also,
after successful authentication, the DHCP local server uses the information in
the client's AAA subscriber record together with the client's DHCP parameters
to select the IP address pool used for address assignment.
DHCP local server also supports RADIUS accounting, including interim accounting,
in standalone mode. This feature allows you to use RADIUS start and stop
attributes to track user events such as the lifetime of an IP address.
You can use DHCP to configure the router to allow remote access to non-PPP clients.
DHCP-based access is also an alternative to PPP in environments such as Public
Embedded DHCP Local Server Overview
463

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