49 DIGITAL VIDEO RECORDER
2) DYNDNS: To use your own domain name service or “dyndns.com”
2. The following settings are only needed if you are NOT using the default.
1) Domain Name: Enter the name you set for the DDNS web
configuration.
2) User ID: Enter your user ID.
3) Password: Enter your password.
4) Update Test: Click the Update Test button to confirm the connection. A
success message appears.
3. To save changes and exit the menu, press the MENU button.
Exit the menu without making changes, press the CANCEL button.
6.6 Router & Port Forwarding
The majority of networks will often consist of a single IP address which share
internet access through a router. This IP address will be an external (public)
static IP address or a dynamic IP address issued by the Internet Service
Provider.
The purpose of a router is to enable multiple personal computers, and any
other devices that require internet connection, to access the internet
simultaneously. Most routers by default enable (open) common ports so that
mainstream applications such as Hypertext Transfer Protocol (port 80), File
Transfer Protocol (port 21), Telnet (port 23) and Post Office Protocol 3 (port
110) can be used.
To solve firewall problems and let visitors into the network, the user must
instruct the router to allow traffic to pass through on a given port. This is
known as Port Forwarding, as the router forwards (directs) all internet
requests on a specific port to the local machine. With port forwarding, external
visitors are able to connect to the DVR while other internal devices remain
protected.
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