Ovislink OV804WV User Manual page 60

Figure 43 PPPoE IGMP and WAN service
IGMP Multicast: IGMP proxy. For example, if you wish that the
PPPoE mode supports IPTV, enable this function.
WAN Service: enable it unless you do not want to active the
PVC.
Click Next and the following page appears. This page shows
all the configuration. You can view the default values of NAT
enabled and Firewall enabled.
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