client-discover-match (DHCP Local Server)
Syntax
client-discover-match <option60-and-option82 | incoming-interface>;
Hierarchy Level
[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]
Release Information
Statement introduced in Junos OS Release 9.4.
incoming-interface option added in Junos OS Release 13.3.
Description
Configure the match criteria DHCP local server uses to uniquely identify DHCP subscribers or clients when primary identification fails. The options are mutually exclusive.
Default
By default, DHCP uses the option60-and-option82 option.
Options
incoming-interface—(Optional) Allow only one client device to connect on the interface.
If the client device changes, the router deletes the existing client
binding and creates a binding for the newly connected device.
The overrides client-discover-match incoming-interface configuration deletes and replaces the existing binding when a new device connects. This action differs from the overrides interface-client-limit 1 statement, which retains the existing binding and rejects the newly connected client.
option60-and-option82—(Optional) Use option 60 and option 82 information
to identify subscribers.
Required Privilege Level
system—To view this statement in the configuration.
system-control—To add this statement to the configuration.