I have issue with my network.
Actuallty I have 6500 Switch with Firewall Moduler. and connected to DHCP Server <Mirosoft Version>. And the VLAN 10. is behind the firewall and from there connected to DHCP Server. WHen the user try to get IP address from DHCP they con't. But when we change the vlan 109 its working fine. After I allowed in firewall all the traffic for the server. DHCP can sea the request but cant provide IP address.