TD-W8900GB
54M Wireless ADSL2+ Router User Guide
38
Figure 5-24
2. Enter
the
Filter name
for the rule, it is exclusive and must be filled.
3. Select
the
protocol: TCP/UDP
,
TCP
,
UDP
or
ICMP
in the drop-down list for the connection
between the Source IP address
and Destination IP address.
4. Enter
a
Source IP Address
in dotted-decimal notation format and then type the
Source
Subnet Mask
and
Source Port
(port or port
:
port) in the text boxes separately.
5. Enter
a
Destination IP Address
in dotted-decimal notation format and then type the
Destination Subnet Mask
and
Destination Port
(port or port
:
port) in the text boxes
separately.
6. Click
the
Save/Apply
button to save this entry.
)
Note:
When you add an
Outgoing IP Filtering entry, you must configure at least one condition on the
screen above except the Filter name. If you leave the Protocol blank, it means that the rule is
effective to all protocols, if you leave the Source IP Address and/or Destination IP Address blank,
it suggests that all Source IP Addresses and/or Destination IP Addresses are controlled by the
rule, if you leave the Source Port and/or Destination Port blank, it suggests that all Source Ports
and/or Destination Ports are controlled by the rule.
IP Filtering - Incoming
Choose “
Advanced Setup
”
Æ
“
Security
”
Æ
“
IP Filtering
”
Æ
“
Incoming
”, you can configure
Incoming Filtering rules on the screen (shown in Figure 5-25).
The Incoming IP Filtering feature allows some IP traffic from WAN to access some local
addresses. By default, all incoming IP traffic from the WAN is blocked when the firewall is enabled.
However, some IP traffic can be
ACCEPTED
by setting up filters.
