DHCP relay binding As per my knowledge, the Relay agent does the job of forwarding the DHCPDISCOVER and DHCPREQUEST from the Client to the Server and DHCPOFFER and DHCPACK from the Server to the Client. But it not directly forwards it, but makes some changes in the packet by changing the Source IP to itself. Now my question would be, 1)Does the Relay gets BOUND to the Server and then forward the packet to the Client? 2)And once the Client gets the IP, does it get BOUND to the Server as well as the Relay? Im so confused with the Relay Bindings. Please help me on this.

DHCP relaying is no hack, it's specified in RFC 3046. When forwarding, the agent puts its own IP address in the GIADDR field, so the DHCP server knows that a gateway is required.

The DHCP lease is associated with the client's MAC address. The gateway's MAC is only used for hop-to-hop delivery.