ADSL ROUTER
USER MANUAL
19
The
PPP IP Extension
is a special feature deployed by some service providers. Unless
your service provider specifically requires this setup, do not select it. If you need to
select it, the PPP IP Extension supports the following conditions:
It allows only one computer on the LAN.
The public IP address assigned by the remote using the PPP/IPCP
protocol is actually not used on the WAN PPP interface. Instead, it is
forwarded to the computer's LAN interface through DHCP. Only one
system on the LAN can be connected to the remote, since the DHCP
server within the ADSL gateway has only a single IP address to
assign to a LAN device.
NAPT and firewall are disabled when this option is selected.
The gateway becomes the default gateway and DNS server to the
computer through DHCP using the LAN interface IP address.
The gateway extends the IP subnet at the remote service provider to
the LAN computer. That is, the PC becomes a host belonging to the
same IP subnet.
The ADSL gateway bridges the IP packets between WAN and LAN
ports, unless the packet is addressed to the gateway's LAN IP
address.
9. Select WAN interface as the system default gateway. Click
Next
.