Billion BiPAC 7800(N)X(L) User Manual page 115

PPPoA
VCP/VPI: Enter the VCI/VPI combination from you ISP.
Encapsulation Mode: Select the encapsulation mode, LLC/SNAP-BRIDGING, or VC/MUX.
Description: User-defined description for the connection.
Username: Enter the account obtained from the ISP.
Password: Enter the password obtained from the ISP.
Service Name: The item is for identification purposes, user can define this.
Authentication Method: Default is Auto. Or else your ISP will advise you the appropriate mode.
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.
Note: In this connection, NAT is enabled by default, you can determine whether to enable Fullcone
NAT or disable Fullcone NAT and only use NAT, the default NAT type is Port Restricted cone NAT.
With Port-Restricted cone NAT, the restriction includes port numbers. Specifically, an external host
can send a packet, with source IP address X and source port P, to the internal host only if the
internal host had previously sent a packet to IP address X and port P
IPv4 Address: Select whether to set static IPv4 address or obtain automatically.
IP Address: If Static is enabled in the above field, enter the static IPv4 address get from the ISP.
Dial on demand: It is a parameter to let users to dial for connection to internet themselves. It is
useful when saving internet fees.
Inactivity Timeout: The set Inactivity timeout period, unit: minutes. It is combined use with Dial on
Demand, users should specify the concrete time interval for dial on demand.
IPv6 for this service: Enable to use IPv6 service.
IPv6 Address: Select whether to set static IPv6 address or obtain automatically.
IP Address: If Static is enabled in the above field, enter the static IPv4 address.
110