|
|
|
|
|
|
|
|
|
ip
| Showing posts 1-21 of 21 | Page 1 of 1 |
| Discussion |
|---|
 0  @ 02-02-2004 06:54 andro | 
42,248 posts
| Maybe they read the post I made in a similar thread earlier tonight... I'll reiterate it in a moment | | 0 @ 02-02-2004 06:55 Weerrt | 1,443 posts
| I missed that, sorry mate | | 0 @ 02-02-2004 06:56 andro |
42,248 posts
| Here's some information on IP addresses taken from my course notes...
The designers of TCP/IP created a uniform way of writing addresses, which in total consisted of 4,294,967,296 unique addresses. These addresses were originally intended for the use of about 4 billion computers, which thirty years ago might have seemed enough.
The IP address consists of Dotted Decimal Notation with one byte (8 bits) making up each decimal number between the dots.
e.g.
128.120.148.43
|
(one byte)
1 byte = 8 bits.... So the IP address is said to be 32 bits.
32 bit space that can accommodate 4,294,967,296 addresses.
With 4 Billion addresses, it might seem incredible that it could fall short of demand. But the demise of the IPv4 was due to big business organizations and the use of address blocks. Address blocks are split into three sizes, and ordered into a Class. There are three types of address class:
Class A Addresses
This uses 24 of the 32 bits in the address space, reads from left to right:
- X.0.0.0
The number signifying "X" is a set number between 0 and 126, always beginning with a Binary 0. This is always the first part of a Class A address.
The numbers signified by "0" can range from 0 to 255 and these help create exclusive IP address. Altogether Class A addresses use up 50% of the 4 billion addresses available.
Class B Addresses
A Class B address will have the following characteristic:
- X.X.0.0
The two "0's" that create the exclusive address take up one half of the 32 bit address, so Class B Addresses are said to have a 16 bit address space.
All Class B addresses begin with a Binary 10 and comprise 25% of the 4 billion addresses available.
Class C Addresses
A Class C address will have the following characteristic:
- X.X.X.0
All Class C addresses begin with a Binary 110 and comprise 12.5% of the 4 billion addresses available.
Now you ask what is the remaining 12.5% taken up by? Well Class D and Class E also exist but Class D functions as a way of sending messages to multiple systems and Class E is reserved for investigational purposes.
Reasons Why IP Addresses Have Ran Out
Class A addresses will be allocated to a business that requires than 65,536 (Class B) IP addresses, even if the company doesnt require anywhere as near as 16 million addresses.
Class B would be allocated do businesses that required more than 256 (Class C) IP Addresses and Class C the remaining addresses would be allocated to small networks.
So this was the real reason IP addresses ran out, the fact that many businesses did not need anywhere near the amount of addresses they were allocated made the IPv4 system realise its serious fault and that a new system must be devised.
Introducing IPv6
IPv6 is a 128 bit address space that i layed out in a different way to IPv4, it lists as follows:
IPv6 address = x:x:x:x:x:x:x:x
(Each X representing 16 bits (double IPv4 address) written in Hexadecimal.
It is likely that you would come across a new IP Addresses looking something like the following:
FEDC:BA98:8654:3210:FEDC:BA98  654:3210 but IPv6 luckily has some element of self organisation, so dealing with this shouldnt be too taxing.
If you actually try to calculate the amount of addresses that 128 bits could generate, you would come across:
340 billion billion billion billion (340 x 10 to the power of 38)!!!!!!
Conclusion
IPv6 will lead the way to solving the IP address shortage, whether we can understand it remains to be seen. As TCP/IP is the backbone to the internet, we must learn the new system just as we did the previous system. | | 0 @ 02-02-2004 06:57 myangel | 2,616 posts
| Wow Phil you have totally lost me for the first time in my life!  | | 0 @ 02-02-2004 06:58 Weerrt | 1,443 posts
| Androo
but that doesn't answer what an IP is
You explained what an IP address is....
| | 0 @ 02-02-2004 06:59 andro |
42,248 posts
| Earlier in that thread I mentioned that IP stood for Internet Provider... | | 0 @ 02-02-2004 07:03 Weerrt | 1,443 posts
| That is wrong too
ISP is the correct abbreviation for Internet service provider...
| | 0 @ 02-02-2004 07:08 andro |
42,248 posts
| Trust me to misread my notes
D'oh!
Although from what the big CIW binder says, TCP/IP (Transmission Control Protocol/Internet Protocol) is just the software used to route information, using IP adresses as nodes to route packets of data through | | 0 @ 02-02-2004 07:13 Weerrt | 1,443 posts
| here mate. My English isn't that good, I can't explain well in English (if you spoke Swedish i could explain well  ) so I found a pretty good explanation from an internet site.
Internet Protocol (IP)
The Internet Protocol (IP) is a network-layer (Layer 3) protocol that contains addressing information and some control information that enables packets to be routed. IP is documented in RFC 791 and is the primary network-layer protocol in the Internet protocol suite. Along with the Transmission Control Protocol (TCP), IP represents the heart of the Internet protocols. IP has two primary responsibilities: providing connectionless, best-effort delivery of datagrams through an internetwork; and providing fragmentation and reassembly of datagrams to support data links with different maximum-transmission unit (MTU) sizes.
-----------
Ya think 70% knew this??  | | 0 @ 02-02-2004 07:15 andro |
42,248 posts
| I doubt 70% of people knew that lol | | 0 @ 02-02-2004 07:20 myangel | 2,616 posts
| I didn't know it ..... but then again I voted no!
| | 0 @ 02-02-2004 21:45 lbp116 | 2,479 posts
| I didn't know...and I still don't think I do...lol | | 0 @ 02-02-2004 21:46 aflackoh6 | 28,546 posts
| i knew i knew  | | 0 @ 02-02-2004 23:09 Dekar | 
36,123 posts
| I did too. Can anyone name 5 internet protocols? | | 0 @ 03-02-2004 00:14 Weerrt | 1,443 posts
| I can, I can! | | 0 @ 03-02-2004 00:26 El_Mono_Loco | 24,347 posts
| It asked if you knew what an ip is, not if you could define what an ip is, geesh.
And only 61% claimed to know.... | | 0 @ 03-02-2004 00:34 Dekar |
36,123 posts
| 61-point-NINE, marfar!  | | 0 @ 03-02-2004 00:36 SomeCallMeMaxx | 6,661 posts
| I knew it stood for internet protocol and an old friend used it to find where I lived.
Yea, that's all. IP address. | | 0 @ 03-02-2004 00:37 THEMariah | 2,083 posts
| gosh, take up the whole thread why don't you phil.... | | 0 @ 03-02-2004 15:50 Weerrt | 1,443 posts
| Yes, the question was: Do you know what an IP is?
They abbreviated IP, they question should be read: Do you know what an internet protocol is?
They didn't ask for what IP stands for... abbreviation for.
The post I made above was very briefly was an IP is, cuz all the different IP's has different responsibilities and works different. | | 0 @ 03-02-2004 17:25 Dekar |
36,123 posts
| Well, I hate to be picky, but you can interpret the question as either what an internet protocol is, if the question is assuming you already know what it stands for, OR you can interpret it as asking for the abbreviation. It's (here comes my favourite word...get ready for it...oh...oh...and...) subjective. |
  |
|
|
|
TOP ARTISTS:
Rihanna, Taylor Swift, Coldplay, Jason Mraz, Jonas Brothers, Britney Spears, Lil Wayne, Katy Perry, Miley Cyrus, Leona Lewis, Avril Lavigne, Pussycat Dolls, The, Pink, T.I., Ne-Yo, Akon, Paramore, Demi Lovato, Christina Aguilera, Secondhand Serenade, Chris Brown, Kanye West, Nickelback, Linkin Park, Jordin Sparks, Metallica, Lady Gaga, Lifehouse, Eminem, Mariah Carey, Kings Of Leon, Slipknot, Oasis, Celine Dion, Jack's Mannequin, Evanescence, Kelly Clarkson, M.I.A., Avenged Sevenfold, Carrie Underwood, Simple Plan, Abba, Beatles, The, Camp Rock, Fall Out Boy, Colbie Caillat, Håkan Hellström, Alicia Keys, Danity Kane, Lars Winnerbäck |
| Copyright © 1998-2008 LetsSingIt | add to bookmarks | disclaimer | privacy policy | advertise on this site |
|
|
