User's Manual

66xx/67xx Router Users Guide 79
IPv6 Configuration
In this screen, you can set an IP v6 address for the DSL IPv6 gateway, enable the DHCPv6
server, enable RADVD and enable the MLD snooping function.
• Enable ULA Prefix Advertisement: Advertises the Unique Local Address (ULA). ULAs are
used for private networks.
• Enable DHCPv6 Server: Enables the IPv6 DHCP server.
• Enable RADVD: The gateway advertisement daemon (RADVD) is run by Linux or BSD
systems acting as IPv6 routers. It sends router advertisement messages, specified by
RFC2461, to a local Ethernet LAN periodically and when requested by a node sending a
router solicitation message. These messages are required for IPv6 stateless auto-
configuration.
• Enable MLD Snooping: Multicast Listener Discovery Snooping (MLD Snooping) is an IPv6
multicast constraining mechanism that runs on Layer 2 devices to manage and control IPv6
multicast groups. By analyzing received MLD messages, a Layer 2 device running MLD
Snooping establishes mappings between ports and multicast MAC addresses and forwards
IPv6 multicast data based on these mappings.
• Enable Relay: When the unit is used as a relay agent for the DHCPv6 server
Click the Apply/Save button to save the IPv6 auto-configuration data.