Billion BiPAC 7800(N)X(L) User Manual page 201

Click Add to create IPSec connections.
IPSec Settings
Connection Name: A given name for the connection (e.g. "connection to office").
WAN Interface: Select the set used interface for the IPSec connection, when you select adsl
pppoe_0_0_35/ppp0.1 interface, the IPSec tunnel would transmit data via this interface to connect to
the remote peer.
IP Version: Select the IP version base on your network framework.
Local Network: Set the IP address or subnet of the local network.
 Single Address: The IP address of the local host, for establishing an IPSec
connection between a security gateway and a host (network-to-host).
 Subnet: The subnet of the local network, for establishing an IPSec tunnel between a
pair of security gateways (network-to-network)
IP Address: The local network address.
Netmask: The local network netmask.
Remote Secure Gateway: The IP address of the remote VPN device that is connected and
establishes a VPN tunnel.
Anonymous: Enable any IP to connect in.
Remote Network: Set the IP address or subnet of the remote network.
 Single Address: The IP address of the local host, for establishing an IPSec
connection between a security gateway and a host (network-to-host). If the remote
peer is a host, select Single Address.
 Subnet: The subnet of the local network, for establishing an IPSec tunnel between a
pair of security gateways (network-to-network), If the remote peer is a network, select
Subnet.
Key Exchange Method: Displays key exchange method.
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