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how to read IP adresses

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#1 Senko


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Posted 18 February 2015 - 04:35 PM

How are IP addresses read?

Mod Edit ,moved to Networking forum ~~ boopme

Edited by boopme, 19 February 2015 - 12:13 PM.

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#2 Wand3r3r


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Posted 19 February 2015 - 01:03 PM

You look at them.  But perhaps your question has more depth than how do you read them.

#3 CaveDweller2


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Posted 19 February 2015 - 01:38 PM

Left to right =)


An IP address is divided into 2 parts: The network and the hosts(devices). This is determined by the network mask.


An Example: with a mask of is the network. we know this because the sample mask has the first 3 octets designated as the network with the 255s.


The 0 in the 4th octet is for the hosts. In the example it is 54 but that number could be anything from 1 up to 254. 0 and 255 are reserved and can't be used for hosts. Also, normally 1 or 254 are reserved for the router, on a simple network. That is not always the case tho. 


That is just a simple explanation. It gets a lot more complicated and confusing, at least at first, when you get off the classfull road and into subnetting.


Is that what you were asking?

Hope this helps thumbup.gif

Associate in Applied Science - Network Systems Management - Trident Technical College

#4 Kilroy


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Posted 19 February 2015 - 06:56 PM

You might want to take a read or listen to Security Now! - Episode 25 - How the Internet Works - Part 1 and Security Now! - Episode 26 - How the Internet Works - Part 2.  While these episodes are about nine years old the Internet hasn't changed all that much, other than being more dangerous.

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