Modecom MC-421 User Manual page 116

WLAN Router
Using the ping Utility
If the target computer cannot be located, you will receive the message Request timed out.
Using the ping command, you can test whether the path to the Wireless Gateway is working (using the preconfigu-
red default LAN IP address 10.0.0.2) or another address you assigned.
You can also test whether access to the Internet is working by typing an external address, such as that for www.
yahoo.com (216.115.108.243). If you do not know the IP address of a particular Internet location, you can use the
nslookup command, as explained in the following section.
From most other IP-enabled operating systems, you can execute the same command at a command prompt or thro-
ugh a system administration utility.
nslookup
You can use the nslookup command to determine the IP address associated with an Internet site name. You specify
the common name, and the nslookup command looks up the name in on your DNS server (usually located with your
ISP). If that name is not an entry in your ISP's DNS table, the request is then referred to another higher-level server,
and so on, until the entry is found. The server then returns the associated IP address.
On Windows-based computers, you can execute the nslookup command from the Start menu. Click the Start but-
ton, and then click Run. In the Open text box, type the following:
Nslookup
Click OK. A Command Prompt window displays with a bracket prompt (>). At the prompt, type the name of the
Internet address that you are interested in, such as www.microsoft.com.
The window will display the associate IP address, if known, as shown below:
Using the nslookup Utility
There may be several addresses associated with an Internet name. This is common for web sites that receive heavy
traffic; they use multiple, redundant servers to carry the same information.
To exit from the nslookup utility, type exit and press [Enter] at the command prompt.
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