Sitecom WLM-2601 User Manual page 39

IP Filter
Click "Add a rule" to add a filtering rule.
Enable: Select to enable IP filter rule.
Source IP: The source IP address or range of packets to be monitored.
Subnet Mask: It is the destination IP addresses based on above destination subnet IP
Source Port: This Port or Port Ranges defines the port allowed to be used by the
Remote/WAN to connect to the application. Default is set from range 0 ~ 65535. It is
recommended that this option be configured by an advanced user.
Destination IP: This is the destination subnet IP address.
Subnet Mask: It is the destination IP addresses based on above destination subnet IP
Destination Port: This is the Port or Port Ranges that defines the application.