The 7210 SAS provides DHCP relay agent services and DHCPv6 relay agent services for DHCP clients. DHCP is used for IPv4 network addresses and DHCPv6 is used for IPv6 network addresses. Both DHCP and DHCPv6 are known as stateful protocols because they use dedicated servers to maintain parameter information.
In the stateful autoconfiguration model, hosts obtain interface addresses and configuration information and parameters from a server. The server maintains a database that tracks which addresses are assigned to which hosts.
The 7210 SAS acts as a relay agent for DHCP and DHCPv6 requests and responses. DHCPv6 functionality is only supported on VPRN access IP interfaces.