Cisco DHCPv6 Router Roles

Here are those services:

• DHCPv6 Server - Router provides stateless or stateful DHCPv6 services
• DHCPv6 Client - Router interface acquires an IPv6 IP configuration from a DHCPv6 server
• DHCPv6 Relay Agent - Router provides DHCPv6 forwarding services when the client and the server are located on different networks

Cisco Routers can be configured to provide all DHCPv6 server services