Port Filtering - Modecom MC-421 User Manual

Port Filtering

Entries in Current Filter Table are used to restrict certain ports and types of data packets from your local network to
Internet through the Gateway. Use of such filters can be helpful in securing or restricting your local network.
From the left-hand Firewall -> Port Filtering menu. The following page is displayed:
Option
Enable Port Filtering
Port Range
Protocol
Comment
Current Filter Table
You must ensure that the single port or range specified does not overlap with a port or range for an existing
common or custom application. Check the common port ranges listed in Configuring NAT Security.
Note
Port filtering for TCP port 80
Please follow example below to deny the TCP port 80 for both Outbound and Inbound packet.
From the left-hand Firewall -> Port Filtering menu. The following page is displayed:
Description
Enable/Disable the WAN packet filter.
Default setting is Disable.
Enter the port range to be filtered for both Outbound and Inbound packet
Select the Protocol to be filtered for both Outbound and Inbound packet
Both: To filter both TCP and UDP protocol
TCP: To filter only TCP protocol
UDP: filter only UDP protocol
Fill in the note for manager what the purpose of certain port filtering rule
The Port Filters that was created is listed here
WLAN Router
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