[ILUG] Re: Network cable questions

[Jeremy Smyth]

If you've got two RJ45s, a length of cat5, and a crimper you could do the
following ...

Find a diagram of an RJ45, find pin 1, and then at the far end of the cable,
make sure this happens:

1 - 6
2 - 3
3 - 2
4 - 4
5 - 5
6 - 1
7 - 7
8 - 8

Lines 1 and 6 , and 2 and 3 are crossed over, hence the name.

Now all you need to do is get the bits... 

/jer
(sick of making the bloody things)

> -----Original Message-----
> From:	Paul Mc Auley [SMTP:paul at baltimore.ie]
> Sent:	Friday, January 14, 2000 4:53 PM
> To:	jsmyth at saleslan.com
> Cc:	ilug at linux.ie
> Subject:	[ILUG] Re: Network cable questions
> 
> On Fri, 14 Jan 2000 16:47:18 GMT 
> Kathryn Cassidy (User Account) <hellbunnie at irelands-web.ie>  wrote:
> 
> | Some time ago there was a discussion about home 
> | networking where someone said they thought you could 
> | only attach two computers directly with cat 5 cable 
> | (ie. without a hub) if it was some "special cross-over 
> | cable" and not just normal twisted pair.
> 
> | Can anyone confirm this?  Also, is there a name for 
> | this type of cable, or if I go to peats/maplin asking 
> | for cross-over cat 5 cable will they know what I'm 
> | talking about.
> 
> Yes. To attach two NICs directly you need a crossover cable, if you ask 
> somebody who knows what Cat-5 is, they should also be aware of crossovers.
> 
> OTOH, I tried this at home for a while before I got sick of the machines 
> whinging that I'd unplugged the other machine and I got a dinky little
> four 
> port hub for about 30 quid from Dabs.
> 	Paul
> 
> 
> -- 
> Irish Linux Users' Group: ilug at linux.ie
> http://www.linux.ie/mailman/listinfo/ilug for (un)subscription
> information.
> List maintainer: listmaster at linux.ie