Technical Documentation

Technical Documentation

DHCP for Subscriber Access, Release 9.4

The Dynamic Host Configuration Protocol (DHCP) technology enables you to provide access to subscribers. Access and services start when the router receives a message from a subscriber (such as a DHCP discover message).

You can configure the router to act as a DHCP local server or as a DHCP relay agent. The DHCP local server provides an IP address and other configuration information in response to a subscriber request; the DHCP relay agent forwards DHCP request and reply packets between a DHCP subscriber and a DHCP server.

In addition, you can configure address-assignment pools to enable different DHCP client applications to share address pools.

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Release Notes

JUNOS Release 9.4

Software Download

Download Software

Configuration Tasks for DHCP Local Server

Using External AAA Authentication Services with DHCP

Configuring How the Extended DHCP Local Server Determines Which Address-Assignment Pool To Use

Grouping Interfaces with Common DHCP Configurations

Overriding Default DHCP Local Server Configuration Settings

Automatically Logging Out DHCP Clients

Attaching Dynamic Profiles to DHCP Subscriber Interfaces

Configuring Passwords for Usernames

Creating Unique Usernames for DHCP Clients

Tracing Extended DHCP Operations

Configuration Tasks for DHCP Relay Agent

Using External AAA Authentication Services with DHCP

Grouping Interfaces with Common DHCP Configurations

Overriding the Default DHCP Relay Configuration

Automatically Logging Out DHCP Clients

Enabling and Disabling Insertion of Option 82 Information

Using Option 60 Information to Forward Client Traffic to Specific DHCP Servers

Configuring Server Groups

Configuring Active Server Groups

Attaching Dynamic Profiles to DHCP Subscriber Interfaces

Tracing Extended DHCP Operations

Configuration Tasks for Address Assignment Pools

Configuring Address-Assignment Pools

Tracing Address-Assignment Pool Processes

Configuration Statements for DHCP

active-server-group (Relay)

always-write-giaddr (Relay)

always-write-option-82 (Relay)

authentication (Local)

authentication (Relay)

circuit-id (Relay)

circuit-type (Local)

circuit-type (Relay)

client-discover-match (Local)

client-discover-match (Relay)

default-local-server-group (Relay)

default-relay-server-group (Relay)

delimiter (Local)

delimiter (Relay)

dhcp-local-server (Local)

dhcp-relay (Relay)

disable-relay (Relay)

domain-name (Local)

domain-name (Relay)

drop (Relay)

dynamic-profile (Local)

dynamic-profile (Relay)

group (Local)

interface (Local)

interface-client-limit (Local)

interface-client-limit (Relay)

ip-address-first (Local)

layer2-unicast-replies (Relay)

logical-system-name (Local)

logical-system-name (Relay)

mac-address (Local)

mac-address (Relay)

no-arp (Local)

no-arp (Relay)

option-60 (Local)

option-60 (Relay)

option-82 (Local; authentication)

option-82 (Local; address assignment pools)

option-82 (Relay)

overrides (Local)

overrides (Relay)

password (Local)

password (Relay)

pool-match-order (Local)

prefix (Relay)

relay-option-60 (Relay)

relay-option-82 (Relay)

routing-instance-name (Local)

routing-instance-name (Relay)

server-group (Relay)

traceoptions (Local)

traceoptions (Relay)

trust-option-82 (Relay)

user-prefix (Local)

user-prefix (Relay)

username-include (Local)

username-include (Relay)

vendor-option (Relay)

Knowledge Base

http://kb.juniper.net/