The DHCPv4 Relay Agent Identifier Sub-Option

This document defines a new Relay Agent Identifier sub-option for the Dynamic Host Configuration Protocol (DHCP) Relay Agent Information option. The sub-option carries a value that uniquely identifies the relay agent device within the administrative domain. The value is normally administratively configured in the relay agent. The sub- option allows a DHCP relay agent to include the identifier in the DHCP messages it sends.