Diagnosing problem using ip utilities, Ping, Nslookup – ELRO CR1 WLAN Repeater USERS MANUAL User Manual

Page 76

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802.11n WiFi Repeater

User’s Manual

76

Diagnosing Problem using IP Utilities

ping

Ping is a command you can use to check whether your PC can
recognize other computers on your network and the Internet. A
ping command sends a message to the computer you specify. If
the computer receives the message, it sends messages in
reply. To use it, you must know the IP address of the computer
with which you are trying to communicate.

On Windows-based computers, you can execute a ping
command from the Start menu. Click the Start button, and then
click Run. In the Open text box, type a statement such as the
following:

ping 192.168.0.1

Click OK. You can substitute any private IP address on your
LAN or a public IP address for an Internet site, if known.

If the target computer receives the message, a Command
Prompt
window is displayed:

Figure 11:

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
device is working (using the preconfigured default LAN IP
address 192.168.0.1) 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 through 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

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