Networking Setup

Networking Setup

The network settings screen will be the hub for getting your recorder networked properly. The benefits of networking your recorder will open the recorder up to be accessed in a variety of ways. You can set it up to be accessed remotely and locally from computers and phones. This is especially important if you need tech support to adjust settings for you.

The TCP/IP screen presents you with a lot of information that may seem foreign to someone not familiar with networking. The IP address of the recorder is the recorders location on the local network. The default IP for Dahua recorders is This can be modified if you need to move the recorder to a different network segment to communicate with it. You can always select DHCP and the recorder will be assigned an IP by the router it is connected to which ensures you can communicate with it and that there isn’t an IP conflict.

The subnet mask is traditionally If you are working on a more complicated network this may need to be modified. The gateway will almost always have the same first three octets as the IP address but normally the last octect is .1. You can always check what the default gateway is by running “ipconfig” on the command line of a computer on the same network.

The default DNS server should be with the alternate being If you are working on a more complicated network this may need to be adjusted.

The connection page of network settings list all the ports for the unit. A port is a way of communicating outside of the network. The default ports are as listed TCP is 37777, UDP is 37778, HTTP is 80, HTTPS is 443, RTSP is 554. You would have to port forward these ports through the local router to make the device accessible outside of the network.

Some ISPs block specific ports from being forwarded. For example, port is 80 is not allowed to be forwarded by some ISPs. In this case, you could use this screen to modify the ports if you need to. Simply click in the field of the port you want to modify and change it to what you want.

The basic ports that need to be forwarded in the case of most cutomers will be the HTTP port and TCP. The HTTP port allows for computer to log directly into the web interface of the recorder. The TCP port is for the phone application (gDMSS, iDMSS).

Setting up a DDNS (Dynamic Domain Name System) is a simpler way of hitting a recorder over the internet after port forwarding it. When you port forward, you associate a port with the external IP address of the network. A problem with this is that external IP address can be cycled by ISPs and change. Setting up a DDNS will make sure that the service doesn’t disappear on the customer when their external IP address changes.

There are three types of DDNS to set up. Dyndns DDNS, No-IP and CN99. DH-Vision customers offer a FREE DDNS service to our customer in the form of Please call tech support to get assistance in setting up your account. Once your account is set up we have a full tutorial in the support section of our website.

When setting up dhddns, be certain to change the host IP to The domain name will be what you set it up as on the website (i.e. The user name and password will be your login to the dhddns website, not the recorder. Don’t forget to click enable and save!

UPnP is an service offered by certain routers. By inserting the router’s local IP as well as the WAN IP in this screen and enabling UPnP in the router you can possibly have port forwarding done for you automatically.
P2P is the quick networking solution that installers need to know about! P2P (peer to peer) can allow you to add a device to your phone or SmartPSS with no port forwarding. On this screen ensure that P2P is enabled and save. You may have to update to the latest firmware to get the P2P status to come online but once it’s online you can easily add your system to your phone software (iDMSS or gDMSS).

Add a device within the phone by clicking the top right corner of the live view screen. Click add device in the bottom left. Click okay, then wired device and finally P2P. You can type in the device SN or scan it with the phone. Type in the log-in credentials for the recorder and start live view at the bottom.