Port Filtering; Ip Filtering - D-Link DVG-5004 Operation Manual

SIP Operation Manual V2.6

Port filtering

Port filtering enables you to control all data that can be transmitted in routers; principles of
filtering---When the port used at the source end is within the limited scope, it will be filtered
without transmission.
Enable port filtering: whether to enable this function or not.
Port Range: Set the range of port to be filtered, suppose it is 80 and when use protocol is Both or
TCP, all computers will be unable to use the services of http (port 80)— will be unable to
browse normal WebPages.
TCP/UDP: Choose to either filter TCP or UDP, or choose to filter both.
Remark: Remark field, you can write comments by yourself.

IP Filtering

IP Filtering is to limit internal users from accessing the Internet.
IP: Input the IP address that you want to filter; the limited IP address will be unable to transmit
the data to the Internet.
TCP/UDP: Choose to either filter TCP or UDP, or choose to filter both.
Remark: Remark filed, you can write comments by yourself.
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