Chapter 8 WAN
NBG420N User’s Guide
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The NBG420N supports both IGMP version 1 (IGMP-v1) and IGMP version 2 (IGMP-v2).
At start up, the NBG420N queries all directly connected networks to gather group
membership. After that, the NBG420N periodically updates this information. IP multicasting
can be enabled/disabled on the NBG420N LAN and/or WAN interfaces in the web
configurator (LAN; WA N). Select None to disable IP multicasting on these interfaces.
8.4 Internet Connection
Use this screen to change your NBG420N’s Internet access settings. Click Network > WA N.
The screen differs according to the encapsulation you choose.
8.4.1 Ethernet Encapsulation
This screen displays when you select Ethernet encapsulation.
Figure 78 Network > WAN > Internet Connection: Ethernet Encapsulation
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