Am facing an issue with respect to the DHCP not releasing IP, though i have a proper Ip-helper address being configured under the interface gig 3.7 for Vlan-4.Am also attaching the config for more refernce.I was able to ping the DHCP server.I have checked from the DHCP server end as well wherin the pools were also configured fine.Kindly suggest if there is any bug pertaining to this module.
description *** Vlan 4 - Dealing room ***
encapsulation dot1Q 4
ip address 10.134.4.2 255.255.254.0
ip access-group 150 in
ip access-group 150 out
ip helper-address 10.134.0.81
no ip directed-broadcast
standby 4 priority 110 preempt
standby 4 ip 10.134.4.1
Hi. Have you tried disable this line in your configuration: "no ip forward-protocol udp".
Because ip helper address is to forward packets UDP.
Good Luck, and I hope to help you.