D-Link DGS-6600-48T Product Manual - Page 338
ipv6 dhcp relay destination
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DGS-6604 ipv6 dhcp relay destination ipv6 dhcp relay destination These commands are used to enable or disable the DHCP relay function. ipv6 dhcp relay destination IPV6-ADDRESS [VLAN-INTERFACE] no ipv6 dhcp relay destination Syntax Description IPV6-ADDRESS Relay destination address. VLAN-INTERFACE This argument must be in the form documented in RFC 2373 where the address is specified in hexadecimal using 16-bit values between colons. Relay to which VLAN-interface. Valn-interface specifies output interface for a destination. If this argument is configured, client messages are forwarded to the destination address through the link to which the output interface is connected. Default Command Mode Usage Guideline DHCP relay: Disabled IPV6-ADDRESS: None VLAN-INTERFACE: NULL. Interface configuration The ipv6 dhcp relay destination command specifies a destination address to which client messages are forwarded and it enables DHCP for IPv6 relay service on the interface. When relay service is enabled on an interface, a DHCP for IPv6 message received on that interface will be forwarded to all configured relay destinations. The incoming DHCP for IPv6 message may have come from a client on that interface, or it may have been relayed by another relay agent. The relay destination can be a unicast address of a server or another relay agent, or it may be a multicast address. The following are the two types of relay destination addresses: • A link-scoped unicast or multicast IPv6 address, for which, a user must specify an output interface • A global or site-scoped unicast or multicast IPv6 address, for which, a user CANNOT specify the output interface. The output interface will determined by routing table. If no output interface is configured for a destination, the output interface is determined by routing tables. In this case, it is recommended that a unicast or multicast routing protocol be running on the router. Multiple destinations can be configured on one interface, and multiple output interfaces can be configured for one destination. When the relay agent relays messages to a multicast address, it sets the hop limit field in the IPv6 packet header to 32. CLI Reference Guide 328