prefix
Syntax
prefix hostname;
Hierarchy Level
[edit
ethernet-switching-options secure-access-port vlan
(all | vlan-name)
dhcp-option82
circuit-id
]
[edit forwarding-options helpers bootp
dhcp-option82 circuit-id
]
[edit forwarding-options helpers bootp interface interface-name
dhcp-option82 circuit-id
]
Release Information
Statement introduced in Junos OS Release 9.3 for EX Series switches.
Description
Configure an optional prefix for the circuit ID suboption in the DHCP option 82 information
that is inserted by the switch into the packet header of a DHCP request before it forwards
or relays the request to a DHCP server.
Default
If
prefix
is not explicitly specified, no prefix is appended to the circuit ID. When
prefix
is
specified, it is specified as
prefix hostname
(and the value is the hostname of the switch).
Options
hostname
—Name of the host system (the switch) that is forwarding or relaying the DHCP
request from the DHCP client to the DHCP server.
Required Privilege
Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Related
Documentation
•
Example: Setting Up DHCP Option 82 on an EX Series Switch with No Relay Agent
Between Clients and DHCP Server on page 2898
•
Example: Setting Up DHCP Option 82 with an EX Series Switch as Relay Agent Between
Clients and a DHCP Server on page 2895
•
Setting Up DHCP Option 82 on the Switch with No Relay Agent Between Clients and
DHCP Server (CLI Procedure) on page 2929
•
Setting Up DHCP Option 82 with the Switch as a Relay Agent Between Clients and
DHCP Server (CLI Procedure) on page 2926
•
[edit forwarding-options] Configuration Statement Hierarchy on page 51
•
RFC 3046,
DHCP Relay Agent Information Option
, at
http://tools.ietf.org/html/rfc3046.
2969
Copyright © 2010, Juniper Networks, Inc.
Chapter 98: Configuration Statements for Port Security
Summary of Contents for JUNOS OS 10.3 - SOFTWARE
Page 325: ...CHAPTER 17 Operational Mode Commands for System Setup 229 Copyright 2010 Juniper Networks Inc ...
Page 1323: ...CHAPTER 56 Operational Mode Commands for Interfaces 1227 Copyright 2010 Juniper Networks Inc ...
Page 2841: ...CHAPTER 86 Operational Commands for 802 1X 2745 Copyright 2010 Juniper Networks Inc ...
Page 3367: ...CHAPTER 113 Operational Mode Commands for CoS 3271 Copyright 2010 Juniper Networks Inc ...
Page 3435: ...CHAPTER 120 Operational Mode Commands for PoE 3339 Copyright 2010 Juniper Networks Inc ...
Page 3529: ...CHAPTER 126 Operational Mode Commands for MPLS 3433 Copyright 2010 Juniper Networks Inc ...