Billion BiPAC 7800NEXL User Manual page 66

3g / wireless-n dual wanadsl2+ firewall router
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Click Next to go to next step.
NAT: The NAT (Network Address Translation) feature allows multiple users to access the Internet
through a single IP account by sharing the single IP address. If users on your LAN have their own
public IP addresses to access the Internet, NAT function can be disabled. When enabled, a Fullcone
NAT parameter will appear, you can determine whether to enable Fullcone NAT. While only NAT
enabled, the default NAT type Port-Restricted cone NAT will be used. For detail, please turn to page
47 for help.
Firewall: Check/uncheck this item to enable/disable firewall function.
IGMP Multicast: IGMP (Internet Group Membership Protocol) is a protocol used by IP hosts to
report their multicast group memberships to any immediately neighboring multicast routers. Check
this item to enable IGMP multicast on that WAN interface for multicast forwarding.
Click Next to go to set default gateway.
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