User's Manual

ADVANCED FUNCTIONS: FILTER
Page 53 of 77
No. Action
1
Type an IP Protocol Number in the Proto Num box.
Note - It ranges from 0 to 255, but can not
be 6 (TCP) or 17 (UDP); otherwise, this port
filter will not work.
2
Select a traffic direction from the drop-down list: Inbound,
Outbound and Both.
3
Select an option from the Protocol drop-down list: TCP,
UDP and Both.
5. Optional. Select Enable or Disable for the following additional filtering
options:
Parameter Description
NAT
Allows you to set up NAT (Network Access
Translation).
Firewall
Allows you to protect your network with a firewall.
Remote
Management
Allows you to access your router’s Web-based
Administration Tool through your WAN connection.
IPSec Pass
Through
Allows you to use IP Security Pass Through.
PPTP Pass
Through
Allows you to use PPTP (Point-to-Point Tunneling
Protocol), used to enable VPN sessions.
Intrusion Detect
Allows you to detect and record intrusion attempts
into your network.
6. When you have completed editing all the settings, click Apply, or click
Cancel to undo your changes.
To Delete Filters:
You can delete any existing Port Filtering or Raw IP filer, but make sure that
you are deleting an unwanted one, otherwise deleting the filters associated
with Virtual Servers or Special Applications may cause to services to collapse
down.