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HellBound Hackers | Computer General | Networking

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TCP/IP Addressing.


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Posted on 26-06-07 12:59
Hello Fellow Hackers Smile

I'm Sitting here reading about TCP/IP and some other protocols.
I went to www.w3schools.com and saw they had a guide on TCP/IP so I thought I would read it, just to learn the basics and stuff.

Anyway, After some Reading I saw this: http://w3schools.. . .essing.asp

"32 Bits = 4 Bytes

TCP/IP uses 32 bits addressing. One computer byte is 8 bits. So TCP/IP uses 4 computer bytes.

A computer byte can contain 256 different values:

00000000, 00000001, 00000010, 00000011, 00000100, 00000101, 00000110, 00000111, 00001000 .......and all the way up to 11111111.

Now you know why a TCP/IP address is 4 numbers between 0 and 255"

Now, My Question is: it says that a Computer byte can contain 256 different values, but the TCP/IP address is 4 numbers between 0 and 255, What happened to the last value?, is it not used? or is it a typing error?
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RE: TCP/IP Addressing.


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Posted on 26-06-07 13:28
0 to 255 = 256 possibilities !!!
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RE: TCP/IP Addressing.

richohealey
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Posted on 26-06-07 13:36
0 to 255 inclusive.....


try this:

#!/usr/bin/python
biglist = range(255)
print biglist
print len(biglist)


bitchohealey at hotmail dot com skype:richohealey www.psych0tik.net
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RE: TCP/IP Addressing.


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Posted on 26-06-07 13:42
sle1306 wrote:
0 to 255 = 256 possibilities !!!


Of Course!!! Thank you guys Pfft
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RE: TCP/IP Addressing.


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Posted on 19-07-07 11:26
Now wait til you get to the part about subnetting, supernetting, and variable length subnet mask....

You will know this by heart if you learn those...

128.64.32.16.8.4.2.1