Learning by Doing: CISCO Certified Network ... - SCN Research

DHCP Lab
Objective:
To learn about DHCP and how it works with a workstation.
Materials and Tools:
(1) Workstation on network with DHCP server
Background:
Most workstations connected to networks use a DHCP server from which to obtain their
IP address automatically. As you found out in the multiple hub networks using static
addresses can cause problems very quickly. In this lab you will learn how to release and
renew the IP address and mask from your workstation using DOS commands and
windows utilities.
Step-By-Step Instructions:
1. Open up a DOS window.
2. Then type “ipconfig” to see your IP settings using DOS. If you type “winipcfg”
here it will open a windows utility to do the same. From DOS you should see
something like this:
C:\WINDOWS\Desktop>ipconfig
Windows 98 IP Configuration
0 Ethernet adapter :
IP Address. . . . . . . . . : 0.0.0.0
Subnet Mask . . . . . . . . : 0.0.0.0
Default Gateway . . . . . . :
1 Ethernet adapter :
IP Address. . . . . . . . . : 192.168.151.122
Subnet Mask . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . : 192.168.151.1
C:\WINDOWS\Desktop>
3. It’s always a good idea to get a snapshot of the settings before we start changing
them in case we need to put them back in later. Do not rely on your memory,
write them down or print them out! Before we start changing these settings from
DOS let’s explore the options available with the ipconfig command. I have
highlighted the commands we are more likely to use as networking
administrators.
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