CSS L17 - DOS COMMANDS IN COMPUTER NETWORKING After this learning module the learners will be able to . . . ○ Apply the DOS commands in computer networking ○ Check network connectivity using PING command. ○ Checking the default gateway and IP address

1. Computer System
Servicing NCII
DOS COMMAND PROGRAM USED IN
COMPUTER NETWORKING Marvin B. Broñoso
CSS Teacher/Trainer
09186975164

2. Learning Competencies
Apply the DOS commands in computer networking
Check network connectivity using PING command.
Checking the default gateway and IP address
01
02
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After this learning module the learners will be able to . . .

3. DOS COMMAND PROGRAM USED IN
COMPUTER NETWORKING
PING
Most widely use DOS command but le
ss essential.
Ping is used to test the ability of one n
etwork host to communicate with anot
her. Simply enter the Ping command,
followed by the name or the IP addres
s of the destination host. Assuming
that there are no network problems or
firewalls preventing the ping from
completing, the remote host will
respond to the ping with four packets.
Receiving these packets confirms that
a valid and functional network path
exists between the two hosts.

4. DOS COMMAND PROGRAM USED IN
COMPUTER NETWORKING
NETSTAT
If you are experiencing problems with
network communications, then
network statistics can sometimes help
point you toward the root cause of the
problem. That’s where the aptly name
d NetStat command comes into play.
This command has a number of
different functions, but the most useful
of these is to display network
summary information for the device.
To see this type of summary
information, just type NetStat -e.

5. DOS COMMAND PROGRAM USED IN
COMPUTER NETWORKING
ARP
The ARP command corresponds to th
e Address Resolution Protocol.
Although it is easy to think of network
communications in terms of IP
addressing, packet delivery is
ultimately dependent on the Media
Access Control (MAC) address of the
device’s network adapter. This is
where the Address Resolution
Protocol comes into play. Its job is to
map IP addresses to MAC addresses.

6. DOS COMMAND PROGRAM USED IN
COMPUTER NETWORKING
HOSTNAME
Fast and easy way of verifying a
computer’s name, then try using the
Hostname command. Typing
Hostname at the command prompt
returns the local computer name.

7. DOS COMMAND PROGRAM USED IN
COMPUTER NETWORKING
TRACERT
Tracert, or “Trace Route,” is a utility fo
r examining the path to a remote host.
Functionally, Tracert works similarly to
Ping. The major difference is that Trac
ert sends a series of ICMP echo requ
ests, and the request’s TTL increased
by 1 each time. This allows the utility t
o display the routers through which pa
ckets are passing to be identified. Wh
en possible, Windows displays the dur
ation and IP address or fully qualified
domain name of each hop.

8. DOS COMMAND PROGRAM USED IN
COMPUTER NETWORKING
IPCONFIG
One utility that I find myself using con
stantly is IPConfig. At its simplest, the
IPConfig command will display basic
IP address configuration information
for the device. Simply type IPConfig at
the Windows command prompt, and
you will be presented with the
IP address, subnet mask, and default
gateway that the device is currently
using.

9. DOS COMMAND PROGRAM USED IN
COMPUTER NETWORKING
NSLOOKUP
NSLookup is a great utility for diagnos
ing DNS name resolution problems.
Just type the NSLookup command,
and Windows will display the name
and IP address of the device’s default
DNS server. From there, you can type
host names in an effort to see if the
DNS server is able to resolve the
specified host name.

10. DOS COMMAND PROGRAM USED IN
COMPUTER NETWORKING
ROUTE
P networks use routing tables to direct pa
ckets from one subnet to another. The
Windows Route utility allows you to view
the device’s routing tables. To do so,
simply type Route Print. The cool thing
about the Route command is that it not
only shows you the routing table, it lets
you make changes. Commands such as
Route Add, Route Delete, and Route
Change allow you to make routing
table modifications on an as needed
basis. The changes that you make can be
persistent or non-persistent, depending
on whether you use the -P switch.

11. DOS COMMAND PROGRAM USED IN
COMPUTER NETWORKING
PATHPING
Earlier, I talked about the Ping utility and
the Tracert utility, and the similarities
between them. As you might have
guessed, the PathPing tool is a utility that
combines the best aspects of Tracert and
Ping. Entering the PathPing command
followed by a host name initiates what
looks like a somewhat standard Tracert
process. Once this process completes
however, the tool takes 300 seconds
(five minutes) to gather statistics, and
then reports latency and packet loss
statistics that are more detailed than
those provided by Ping or Tracert.

12. DOS COMMAND PROGRAM USED IN
COMPUTER NETWORKING
PING
NETSH
Test your network connection
Configure interfaces, routing protocols,
filters and route.

13. ACTIVITY
1) Open your DOS Commands
Windows Logo + R = RUN
Types CMD then hit the enter key
2) Type IPCONFIG then ENTER.
3) You will see the different properties of your Ethernet adapter
configuration.
2) Write it down in your notebook.
3) Type TITLE space your FULL NAME then ENTER.
4) This will include your name in your cmd window.
5) PRINT SCREEN then save it as IPCONFIG

14. ACTIVITY

15. ACTIVITY
8) Now type IPCONFIG /ALL
This will show you all your current IP information in all adapters. You can also
find your DNS server and MAC Address. It will share all the specific
information of your Ethernet adapter full TCP/IP configuration. You can also
see you default gateway and own IP address.
9) PRINT SCREEN then save it as IPCONFIG ALL
10) Now type IPCONFIG /RELEASE
Use IPCONFIG release to release your current IP information and obtain a
new IP Address from the DHCP server.
11) PRINT SCREEN then save it as IPCONFIG RELEASE

16. ACTIVITY
12) Now type IPCONFIG /RENEW
This will renew your IP ADDRESS if you have it set to obtain IP address
automatically
13) PRINT SCREEN then save it as IPCONFIG RENEW
14) Now type IPCONFIG /displaydns
Use to show your current DNS resolver cache logs.
15) PRINT SCREEN then save it as IPCONFIG DISPLAYDNS
16) Now check the default gateway address using IPCONFIG /ALL

17. ACTIVITY
17) Now we will use the PING commands.
Type PING + GATEWAY ADDRESS (xxx.xxx.xxx.xxx)
18) PRINT SCREEN then save your work.
19) Send to me thru EDMODO all the screen shots you made.