User's Manual
Security
80
D6200 WiFi Modem Router
• ALLOW by schedule, otherwise Block. Block the traffic covered by this rule,
unless it is blocked according to the schedule specified on the Schedule screen in
Schedule for Firewall Rules on p
age 82.
ALLOW rules are useful only when the traffic is already covered b
y a BLOCK rule.
You would use these rules when you want to allow a subset of traffic that is blocked by
another rule.
c. LAN Users. These settings determine which compu
ters on your network are
affected by this rule, based on their source (LAN) IP address. Select the option you
want:
• Any.
All local IP addresses are covered by this choice.
• Address range. Y
ou have to provide the Start and End fields when this option is
selected.
• Single a
ddress. Enter the required address in the Start field.
d. WAN Servers. T
hese settings determine which Internet locations are covered by the
rule, based on their destination (WAN) IP address. Select the option you want:
• Any.
All Internet IP addresses are covered by this choice.
• Address range. Y
ou have to provide the Start and End fields when this option is
selected.
• Single a
ddress. Enter the required address in the Start field.
e. Log.
This setting determines whether traffic covered by this rule is logged. Select the
action you want:
• Always. This choice alwa
ys logs traffic that is covered by this rule, whether it
matches or not. (This feature is useful when you are debugging your rules.)
• Never. This choice ne
ver logs traffic covered by this rule, whether it matches or
not.
f. Click Apply to
have your changes take effect, or click Cancel to return to the
previous screen.
3. In
bound Services. To allow or block an inbound service, click here to set up inbound
firewall rules for gaming or other applications. You are redirected to the Port Forwarding/Port
Triggering screen as described in Port Forwarding and Triggering o
n page 103.
4. In
stant Messaging (IM) Ports. To close or open the instant messaging ports, select the
appropriate radio button:
• Close IM
Ports
• Op
en IM Ports (IM ports are open by default)
5. Click Apply
to enable your Firewall Rules selections.
Add Custom Services to Allow or Block
You can define your own incoming and outgoing custom services to allow or block. Once you
add your own custom services, they are available on the Outbound Services screen (as