Client-Discover-Match (Dhcp Local Server) - Juniper EX3400 Features Manual

client-discover-match (DHCP Local Server)

Syntax
Hierarchy Level
Release Information
Description
Default
Options
Required Privilege
Level
Related
Documentation
Copyright © 2017, Juniper Networks, Inc.
client-discover-match <option60-and-option82 | incoming-interface>;
[edit system services dhcp-local-server overrides],
[edit system services dhcp-local-server group group-name overrides],
[edit system services dhcp-local-server group group-name interface interface-name overrides]
[edit logical-systems logical-system-name routing-instances routing-instance-name system
services dhcp-local-server ... overrides],
[edit logical-systems logical-system-name system services dhcp-local-server ...overrides],
[edit routing-instances routing-instance-name system services dhcp-local-server ...overrides]
Statement introduced in Junos OS Release 9.4.
Statement introduced in Junos OS Release 12.3R2 for EX Series switches.
option added in Junos OS Release 13.3.
incoming-interface
Configure the match criteria DHCP local server uses to uniquely identify DHCP subscribers
or clients when primary identification fails. The options are mutually exclusive.
By default, DHCP uses the
—(Optional) Allow only one client device to connect on the interface.
incoming-interface
If the client device changes, the router deletes the existing client binding and creates
a binding for the newly connected device.
NOTE: The
configuration deletes and replaces the existing binding when a new
device connects. This action differs from the
interface-client-limit 1
rejects the newly connected client.
—(Optional) Use option 60 and option 82 information to identify
option60-and-option82
subscribers.
system—To view this statement in the configuration.
system-control—To add this statement to the configuration.
Extended DHCP Local Server Overview on page 22
Overriding Default DHCP Local Server Configuration Settings on page 28
DHCP Auto Logout Overview on page 124
Allowing Only One DHCP Client Per Interface
Chapter 12: Configuration Statements (DHCP and DHCP Relay)
option.
option60-and-option82
overrides client-discover-match incoming-interface
statement, which retains the existing binding and
overrides
159