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APM-DHCP Access Policy Example and Detailed Instructions

Prepared with Mark Quevedo, F5 Principal Software Engineer May, 2020 Sectional Navigation links Important Version Notes   ||  Installation Guide   ||  What Is Going On Here?   ||  Parameters You ...
Updated Sep 08, 2023
Version 9.0
application delivery
BIG-IP Access Policy Manager (APM)
dhcp
iRules
vpn
DCH's avatar
DCH
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Jun 27, 2025

Is it possible to add DHCP renews as a functionality for this iApp? We've run into the issue were due to our DHCP HA configuration, when the clients make a request they are handed a 60 minute lease due to our MCLT timer being set to that. After the 60 minutes, our DHCP servers are expecting a DHCP renew request which it will then hand out our regular lease time of 3 days for clients. Due to the iApp not being able to send DHCP renews, after 60 minutes the leases and associated DNS records for clients get cleared out. With leases and DNS being cleared it causes issues with IP conflicts as our DHCP servers will be handing out IPs it thinks are available but may still be actively used by connected clients.