Advanced > Security > Ip Filtering - NetComm NB9 User Manual

Advanced > Security > IP Filtering
IP fi ltering allows you to deny or permit any packet from passing through the modem explicitly. You can set
either incoming fi ltering or outgoing fi ltering. Outgoing means the data is transferred from your computer onto
the internet while Incoming means the data is transferred from outside onto your computer.
Notes: By default, all outgoing traffi c is allowed and all incoming traffi c is blocked. However they can be
change accordingly by setting up fi lters.
To set up outgoing fi ltering, click on Outgoing menu on the left and click the Add button.
To set up incoming fi ltering, click on Incoming menu on the left and click the Add button.
The screen for Incoming and outgoing fi lter is basically the same. You need to specify a name, protocol,
source and destination IP address and their respective ports.
Field Name
Filter Name
Protocol
Source IP address
Source Subnet Mask
Source Port
Destination IP address
Destination Subnet Mask
Destination Port
NB9/NB9W ADSL2+ VoIP Router
YML790 Rev1
Comment
Enter name for this fi lter/rule
Choose UDP/TCP or both
Either port or port range
Either port or port range
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