HIKVISION DS-3WR3N - Port Mapping; Overview

Wireless Router • User Guide
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Port mapping
By default, internet users cannot actively access the LAN of the router.
The port mapping function opens a port of the router, and binds the LAN server to the port using
the server’s IP address and intranet service port. All-access requests to the WAN port of the router
will be directed to the server. Therefore, the server within the LAN can be accessed by internet
users and the LAN can be free from attacks from the internet.
For example, the port mapping function enables internet users to access web servers or FTP
servers within the LAN.
To access the configuration page, log in to the web UI of the router, and navigate to Advanced >
Port Mapping.
Port mapping
Port mapping parameter description
Internal IP Address
It specifies the IP address of a server that resides on the LAN.
Internal Port
It specifies the service port number of the internal server.
You can either choose a port from the drop-down list or specify a
port manually.
External Port
It specifies the service port number for internet users to access a
specified service.
When the internal port is selected or specified, the external port will
be occupied automatically. You can also change it as required.
Protocol
It specifies the protocol that specified service uses.
Both indicate that both TCP and UDP are used. If you are uncertain
about it, Both are recommended.
Operation
: It is used to add a port mapping rule.
: It is used to delete a port mapping rule.
Parameter
Description