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

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5. Notice how our address may differ slightly. When we give up our IP address it<br />

usually will go to one of the next devices requesting an IP…sometimes we get the<br />

same one back and sometimes we do not. Sometimes we encounter an error like<br />

this:<br />

C:\WINDOWS\Desktop>ipconfig /renew_all<br />

IP ConfigurationError<br />

DHCP Server Unavailable: Renewing adapter ""<br />

Windows 98 IP Configuration<br />

0 Ethernet adapter :<br />

IP Address. . . . . . . . . : 0.0.0.0<br />

Subnet Mask . . . . . . . . : 0.0.0.0<br />

Default Gateway . . . . . . :<br />

1 Ethernet adapter :<br />

IP Address. . . . . . . . . : 169.254.60.217<br />

Subnet Mask . . . . . . . . : 255.255.0.0<br />

Default Gateway . . . . . . :<br />

C:\WINDOWS\Desktop><br />

Notice how our IP address is within the 169 network. Does this mean it worked?<br />

Not at all. Microsoft uses the 169 address as a “place holder” in case something<br />

goes wrong with DHCP.<br />

6. Next, let’s try the same thing with Windows. You can type winipcfg from the<br />

DOS prompt or from the RUN utility. You should see something like this when<br />

you first open it up:<br />

118

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