Help w/ Special IP Address

April 18, 2009 at 08:04:25
Specs: Windows Vista
I am currently studying to take my CCNA and am a little confused reading the self-study guide. In special IP addressing, it states that "All binary 1s or 0s in the host portion of the address is illegal. All binary 1s or 0s in the network portion of the address is illegal." I don't get this since binary is only 1s and 0s.

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#1
April 18, 2009 at 08:43:53
post the entire context [paragraph] of the statement or give link to statement

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#2
April 18, 2009 at 09:36:45
The 0's and 1's should all be in jail !


It just means you cant have,

11111111.11111111.11111111.11111111 or
00000000.00000000.00000000.00000000

as with all 1's that gives you the broadcast address and all 0's gives you the network number. Same applies for a subnet.


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