This document describes how to release IP address reservations for a DHCP server configured on a Palo Alto Networks Firewall. We assume you have already configured a DHCP server and are attempting to release assigned addresses. To set up a DCHP server service for the first time, see the following article: How to Configure DHCP Reserved Addresses on a Palo Alto Networks Firewall.
Steps
Go to Network > DHCP > DHCP Server
To view addresses assigned by the DCHP server configured on the firewall, click "View Allocation" under the IP Pools column for the DHCP service you've set up. View Allocation
A window will appear showing a list of DHCP Server IP Address Allocations:
IP Pools Allocated
To release the DHCP assigned address, use the following CLI command: clear dhcp lease interface <ethernet interface> ip <ip-address>. In the example below, we will clear the 10.192.16.163 address shown above :