Advanced Applications; Ddns - Tenda 4G301 User Manual

5 Advanced Applications

This section includes the following:

DDNS

Port Forwarding
DMZ Host
UPnP
Routing Table
To remotely access the device via a domain name or access a server on a LAN PC, see
DDNS .
To let an Internet user access a server on your LAN PC, see Port Forwarding.
To let an Internet user access your LAN PC without any restriction, see DMZ Host.
To automatically map the ports between WAN and LAN, see UPnP.
To view routes, see Routing Table.
5.1 DDNS
Dynamic DNS or DDNS is a term used for the updating in real time of Internet Domain Name
System (DNS) name servers. We use a numeric IP address allocated by Internet Service Provider
(ISP) to connect to Internet; the address may either be stable ("static"), or may change from one
session on the Internet to the next ("dynamic"). However, a numeric address is inconvenient to
remember; an address which changes unpredictably makes connection impossible. The DDNS
provider allocates a static host name to the user; whenever the user is allocated a new IP address
this is communicated to the DDNS provider by software running on a computer or network device
at that address; the provider distributes the association between the host name and the address to
the Internet's DNS servers so that they may resolve DNS queries. Thus, uninterrupted access to
devices and services whose numeric IP address may change is maintained. Click Advanced ->
DDNS to enter the DDNS screen.
Tip
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1. To use the DDNS feature, you need to have an account with one of the Service Providers in the
drop-down menu first.
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III Features & Configurations