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Re: OT: Crossover Ethernet cable



I hope I'm not misleading. AFAIK, things goes like that:

There are two pairs of cables used out of the eight in the RJ-45 jack your
using. 
They are attached to pins 1+2  and 3+6. In regular connection, the wirings go
like that:
	cable number	function
	1		I-ground
	2		I-signal
	-
	3		II-ground
	6		II-signal

In crossover connection things should look like this:
	cable number	function
	1		II-ground
	2		II-signal
	-
	3		I-ground
	6		I-signal


That's all there is!... :-)

Hope it helps, not to mention - hope it's right... ;-)

Boaz.

פופוב יבגני wrote:
> 
> I spent last evening trying to connect Mandrake laptop to any of my M$ boxes
> using 10BaseT crossover cable.
> I don't want to purchase a hub, and according to the theory everything
> should be OK with such cable.
> The cable is vanilla-classic 1------------3
>                                         2------------6
>                                         3------------1
> 
>                                         6------------2
> BUT: nothing works.
> Link LEDs are not lighting.
> Pings are timeouted at M$ and "destination host is unreachable" at linux
> box.
> All works terrific with my company's hub and straight cables.
> I even started a sniffer at NT and saw that there were an ARP broadcast for
> Linux box with no response.
> Seems that cable is the problem, but I checked it 3 times.
> 
> Anyway, maybe someone succeeded in the past to connect 2 boxes without a
> hub, I would appreciate him to share the experience with me.
> 
> ===========================================================
> = Evgeny Popov ===================== epopov@mekorot.co.il =
> =       Water Management SCADA Centers Developer          =
> =          NT & Unix  System Administrator                =
> =          ELECTRICAL & MECHANICAL SERVICES               =
> =         SUBSIDIARY OF MEKOROT WATER CO.LTD              =
> 
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