Setup guide

Advanced functions
8.1 FIREWALL & TRAFFIC RESTRICTIONS
Default firewall configuration
By default the firewall blocks all inbound requests including Ping from the
Internet to your local network. In the outbound direction, all traffic that originates
from your local network are allowed. Most users do not require changing any
firewall settings and are automatically protected by this default configuration.
Running a server on your local network
If you want Internet users to have access to servers on your local network, set up
Port Forwarding (Virtual Servers) to allow incoming requests reaching the
servers. Refer to the Virtual Server Port Forwarding section of the User Manual.
DMZ
If you run applications that require unrestricted 2-way traffic between a
computer on your network and the Internet, set up the computer as DMZ Host.
Refer to the Virtual Server DMZ Host section of the User Manual. Caution: the
specified computer will no longer be protected by the firewall.
Restricting access
You can block specified computers on your network to access the Internet by
defining IP Filters. Refer to the Firewall IP Filtering section of the User Manual.
8.2 IP EXTENSION (HALF-BRIDGING)
The ADSL router can be made to
resemble a bridge modem. It bridges
traffic between the Internet (WAN) and
your local network (LAN). In this mode
firewall and Internet sharing (NAT) are
disabled. A computer or network
device connected directly to the
modem receives a WAN IP from your
ISP via the bridged modem. This
arrangement is suitable for certain applications that require a computer or
a network device, such as a VPN router, to receive a WAN IP.
Caution: This mode of operation disables the firewall and assumes security will
be provided by another device on your LAN.
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