Juniper JUNOSE 11.0.X MULTICAST ROUTING, Configuration Manual

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Chapter 21
Configuring the DHCP External Server
Application
The following sections describe how to configure the DHCP external server application
on the E Series router:
■
DHCP External Server Overview on page 517
■
Preservation of Dynamic Subscriber Interfaces with DHCP External Server
Overview on page 519
■
DHCP External Server Identification of Clients with Duplicate MAC Addresses
Overview on page 520
■
DHCP External Server Configuration Requirements on page 522
■
Enabling and Disabling the DHCP External Server Application on page 522
■
Monitoring DHCP Traffic Between Remote Clients and DHCP Servers on page 523
■
Synchronizing the DHCP External Application and the Router on page 523
■
Configuring Interoperation with Ethernet DSLAMs on page 523
■
Configuring the DHCP External Server to Support the Creation of Dynamic
Subscriber Interfaces on page 524
■
Configuring DHCP External Server to Control Preservation of Dynamic Subscriber
Interfaces on page 526
■
Configuring Dynamic Subscriber Interfaces for Interoperation with DHCP Relay
and DHCP Relay Proxy on page 527
■
Deleting Clients from a Virtual Router’s DHCP Binding Table on page 528
■
Configuring DHCP External Server to Uniquely Identify Clients with Duplicate
MAC Addresses on page 530
■
Configuring DHCP External Server to Re-Authenticate Auto-Detected Dynamic
Subscriber Interfaces on page 531
DHCP External Server Overview
You can configure the E Series router to provide support for an external DHCP server.
This enables the router, which is not running DHCP relay or DHCP proxy server, to
monitor DHCP packets and to keep information for subscribers based on their IP
address and MAC address. When the E Series router’s DHCP external server
application is used, all DHCP traffic to and from the DHCP server is monitored by
the router.
DHCP External Server Overview
■ 517