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13
Security
Your ADSL modem has a powerful firewall built-in. The firewall supervises the passing data traffic and
stops unauthorised traffic. The active security level is shown on the front panel display. It can be
changed using the
ALT CFG key, or the menu page on the built in web interface.
AD CFG DHP RST
LQ
TX
RX
Only web and email traffic is allowed - Highest security, but some applications may have
trouble getting through.
AD CFG DHP RST
LQ
TX
RX
All outgoing and legitimate incoming traffic is allowed - Same security against attacks as
the Hi profile, but more applications are allowed to get out to the Internet.
AD CFG DHP RST
LQ
TX
RX
User editable security profile - The user may edit the details for this security profile.
AD CFG DHP RST
LQ
TX
RX
Blocked - No traffic is allowed to pass. You are disconnected from the Internet.
AD CFG DHP RST
LQ
TX
RX
Bridged - Firewall and NAT bypassed. Warning! Not Recommended.
( NOTE. The bridged mode does not work with PPPoA connections.)
If you have:
•
servers that you want to make Internet accessible
•
A VPN client to work from home
•
network games (games played together with other users on
the net).
you have to configure the firewall to allow such traffic to pass.
You can edit the firewall settings by choosing Security under
Settings on the menu page. Then choose AC to edit the security
profile to fit your games or applications.
Select the applications and protocols you want to allow through
the firewall. For some applications you need to state the IP
address of the computer on your LAN that will receive the traffic.
It is the IP address to your local computer you should enter. In
Windows choose
Start , Run , and enter winipcfg to find out what
IP address your computer is assigned to.
Advanced users may manually redirect ports and even edit the
rules controlling the firewall in a powerful command language.
Does your application have trouble
getting out to the Internet?
Do you get an error message?
Change security profile to ”
Lo ”!
Do not forget to click Save and change the
profile to AC if you make any changes!