Billion BiPAC 8700VAX(L)-1600 User Manual page 145

IPoA
VPI/VCI: Enter the VPI/VCI combination from you ISP.
Encapsulation Mode: Select the encapsulation mode, LLC/SNAP-BRIDGING, or VC/MUX.
Description: User-defined description for the connection, commonly for friendly use.
WAN gateway IP Address: Enter your gateway IP address to the device provided by your ISP.
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.
Fullcone NAT: Enable or disable fullcone NAT. Fullcone is a kind of NAT, in this mode, all requests
from the same internal IP address and port are mapped to the same external IP address and port.
Furthermore, any external host can send a packet to the internal host, by sending a packet to the
mapped external address.
IGMP Multicast Proxy: Check whether to enable this feature. IGMP (Internet Group Management
Protocol) Proxy intercepts the IGMP request from Clients and set up the multicast-forwarding table,
it takes over some of the router's job, simplifying the router's job and multicast communication.
IGMP Multicast Source: Enable to support the "source filtering" which is the ability for a system to
report interest in receiving packets "only " from specific source address(es), or "all but" specific
source address(es), sent to a particular multicast address. It works only on IGMP version 3.
Note:
No Multicast VLAN Filter: Enable to deactivate the multicast VLAN filter which allows users to filter
on all multicast packets or on specific multicast groups.
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