Windows XP: Basic Networking Utilities
Below is a list of some command line network utilities that come with
Windows that you can use for troubleshooting some basic network
problems. The problem with these utilities is that they're not very
intuitive until you learn to understand what you're looking at.
primary use of them is to find out if different parts of your
computer's network subsystems are working properly. For example if
you're able to PING a remote computer, then you know that your computer
is able to talk to it and that it's able to talk back to you. The
IPCONFIG command is handy for finding out information about your
computer's TCP/IP information, such as your IP address.
to access these utilities you must use the MS-DOS command prompt. To
access the command prompt, from the Run... command under the Start
menu, type CMD and press Enter. To exit the command prompt, close the
window or type EXIT and press enter.PING [hostname]
Example : ping example.com
a basic network test to see if you can communicate with a remote
computer. This is generally the first utility that you should run if
you're having a network problems. Type "PING /?" for more information
on this command.TRACERT [hostname]
Example: traceroute example.com
the path and the number of routers (aka hops) that the data pass
through to arrive to the destination, if a connection is broken, you
can see where its happening at. Type "TRACERT /?" for more information
on this command.IPCONFIG
Example : ifconfig
the basic TCP/IP network information for your computer, such as the IP
address, subnet mask, and default gateway. Type "IPCONFIG /?" for more
information on this command.
example: nslookup example.com
the remote IP address of a domain name based on the DNS information.
This is a good test to make sure that your DNS connection is working
properly. Type "NSLOOKUP /?" for more information on this command.
Example: netstat -nt
the current TCP/IP based connections established on your computer. This
is handy to see the remote TCP/IP connections your system is using.
Type "NETSTAT /?" for more information on this command.
TELNET [hostname] [port]
Example: telnet example.com 80
you to set up a simple terminal session with a another computer to
perform different tasks, such as remote computer administration or
running text based applications. This utility can also be used for
doing basic troubleshooting on HTTP, SMTP, and other text based