We have a LAN with a Catalyst 5509 routing for 35 vlans. Whenever, a user moves from VLAN to another, he/she does not get an IP address from the new VLAN, their workstation still retains the old vlan IP even after performing a release and renew. Only after releasing the IP address on the DHCP server is the user able to get an IP in the new VLAN. However, there does not seem to be any problem when PCs are statically configured with IPs in the new VLAN
The ip helper-address has been configured on each VLAN, bootp requests and replies have been verified on the RSM using "debug ip udp".
I really appreciate any recommendations or advice on this.