Clearing Dhcp Bindings For Subscriber Access - Juniper ACX1000 Configuration Manual

ACX Series Universal Access Router Configuration Guide

Clearing DHCP Bindings for Subscriber Access

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This topic provides the procedure you use to display current DHCP bindings, clear selected
bindings, and verify that the specified bindings are successfully cleared.
Subscriber management enables you to clear DHCP bindings at several different levels
for DHCP local server. For example, you can clear the DHCP bindings on all interfaces, a
group of interfaces, or a specific interface. You can also clear DHCP bindings based on
IP address, MAC address, session-ID, port, or VLAN.
This topic includes examples to show several variations of the clear DHCP binding feature.
To clear bindings and verify the results for a specific IP address:
Display current bindings. Issue the appropriate variation of the
1.
command.
user@host> show dhcp server binding
IP address Session Id
Interface
192.168.2.91 882
ge-0/1/1.42
To display the current bindings in a routing instance, issue the
routing-instance name
Clear the binding you want to remove.
2.
user@host> clear dhcp server binding 192.168.32.1
To clear current bindings in a routing instance, issue the
routing-instance name
Verify that the binding has been cleared.
3.
user@host> show dhcp server binding
IP address Session Id
Interface
192.168.2.91 882
ge-0/1/1.42
To verify the current bindings in a routing instance, issue the
routing-instance name
The following examples show variations of the clear DHCP binding feature. The examples
use the DHCP local server version of the commands.
To clear all bindings:
user@host> clear dhcp server binding all
Hardware address Expires
84:18:88:c0:5b:3b 482
clear dhcp server binding
Hardware address Expires
84:18:88:c0:5b:3b 482
Copyright © 2017, Juniper Networks, Inc.
show dhcp server binding
State
BOUND
show dhcp server binding
State
BOUND
show dhcp server binding