Sending Release Messages When Clients Are Deleted

By default, when DHCP relay and relay proxy delete a client, they do not send a release message to the DHCP server. You can override the default behavior and configure DHCP relay and relay proxy to send a release message whenever they delete a client. The release message sent by DHCP relay and relay proxy includes option 82 information.

Note: In Junos OS Release 10.1 and earlier, DHCP relay sends a release message to the DHCP server when the client-discover-match statement is included as a DHCP relay override. In Junos OS Release 10.2 and later, you must include the send-release-on-delete statement to configure DHCP relay and relay proxy to send the release message when the client-discover-match statement is included.

To send a release message:

1. Specify that you want to configure overrides.
   [edit forwarding-options dhcp-relay]user@host# edit overrides
2. Specify that you want DHCP relay and relay proxy to send a release message when clients are deleted.
   [edit forwarding-options dhcp-relay overrides]user@host# set send-release-on-delete

Related Topics

• Extended DHCP Relay Agent Overview
• Overriding the Default DHCP Relay Configuration Settings