Huawei HG232f User Manual page 29

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5 Configuring Frequently Used Functions
Furthermore, IP addresses used by most users to access the Internet are dynamically
assigned by network service providers, so many cannot use fixed IP addresses to access
the resources provided on servers. The HG232f's Dynamic Domain Name Service
(DDNS) function allows Internet users to use fixed domain names to access the
resources provided on servers.
After the DDNS function is enabled, the HG232f automatically submits the new IP
address obtained to the server of a DDNS provider. On the DDNS server, the IP address
that corresponds to the domain name is updated to the latest IP address. When a
computer on the Internet accesses the domain name, the DDNS server provides the latest
IP address to that computer.
Configuration Example
If you deploy a web server on a LAN and want Internet users to be able to access the web
site on the web server through a fixed domain name, the IP addresses of relevant devices
should be as follows:


You can use the port relay function of the NAT and DDNS function to implement the
preceding requirements.
Before the configuration, you need to complete the following actions:


After the preceding actions, set the parameters of the HG232f as follows:


The configuration procedure is as follows:
Step 1 Log in to the web-based configuration utility.
Step 2
In the navigation tree, choose Advanced > NAT.
The NAT page is then displayed.
Step 3 Click Port Mapping.
Step 4
Click New.
Step 5 Select Application, and then select Security web server (HTTPS) for Application.
The port mapping function of the HG232f provides parameter setting templates of multiple
applications. After a template is selected, the HG232f sets relevant parameters automatically.
You can change the parameter settings as required. You can also set all the parameters manually
based on the requirements of other applications.
Step 6
Set the following parameters as planned.

5-10
The IP address of the HG232f LAN interface is 192.168.3.1.
The IP address of the web server is 192.168.3.166.
Apply for the DDNS from a DDNS provider to obtain relevant parameters.
Apply for a domain name for the web site from the institution that manages web site
domain names.
Configure a port mapping rule, and then map the IP address of the web server
(192.168.3.166:80) to the 80 port of the WAN interface.
Configure the DDNS. Ensure that the HG232f can submit IP addresses to the DDNS
server automatically.
External start port: 80
HG232f 300Mbps Wireless Router
User Guide
Issue 01 (2012-05-08)