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Cellular M2M Gateway list of ports that want to receive the data, instead of being flooded to all ports in a VLAN. This list is constructed by snooping IPv6 multicast control packets. If necessary in your environment, please enable this feature. WAN Connection Options 1. DS-Lite: If necessary in your environment, please enable this feature and enter AFTR IPv6 Address. LAN Configuration 1. Global Address: Please enter the global IPv6 address for LAN interface. 2. Link-Local Address: To show the IPv6 Link-Local address of LAN interface. Address Auto-configuration 1. Auto-configuration: Disable or enable this auto configuration setting. 2. Auto-configuration type: You may set stateless or stateful (Dynamic IPv6). 3. Router Advertisement Lifetime: You can set the time for the period that the router send (broadcast) its router advertisement. Each router periodically multicasts a Router Advertisement from each of its multicast interfaces, announcing the IP address of that interface. Hosts discover the addresses of their neighboring routers simply by listening for advertisements. When a host attached to a multicast link starts up, it may multicast a Router Solicitation to ask for immediate advertisements, rather than waiting for the next periodic ones to arrive; if and only if no advertisements are forthcoming, the host may retransmit the solicitation a small number of times, but then must desist from sending any more solicitations. Any routers that subsequently start up, or that were not discovered because of packet loss or temporary link partitioning, are eventually discovered by reception of their periodic (unsolicited) advertisements. IDG761-0P001 User Manual 79