RE: Win32 Snort Question

From: Don Weber (Don@AirLink.com)
Date: 12/11/01


From: "Don Weber" <Don@AirLink.com>
To: "Stuart Underhill" <stuartunderhill@hotmail.com>, <DJohnson@IronMountain.com>, <security-basics@securityfocus.com>
Date: Tue, 11 Dec 2001 10:47:37 -0800

this was an explanation i sent someone in an email a while back, they never called me saying it didn't work so hopefully
that is good news. so i was kind of explaining step by step sorta

one-way receive only ehternet cable, this is a good way to make a cable, the reason the pins 1/2 from
hub port 1 go to pins 3/6 on hub port 2 is because the hub generally won't allow a link to exist if it
doesn't rcv a packet of some sort so basically, you would take just any patch cable, the one you have running to the
machine now would be fine, you'd have to go down to the local electronics store and buy or try to borrow some crimpers,
and buy a package of 5 or 10 jacks, make sure they are the same as the ends on the patch cable you have now, then you
cut off one end, and looking at the cut-off end, strip off the casing from the cable and make two connections on the
cut-off end basically, kind of hard to explain and i hope your understanding this well, anyway, you count from left to
right for the wires with the plug in your had with the tab part away from you (the tab is the little thing you have to
press down to get the plug out of the back of the computer, where you are looking at the little gold pins in the jack i
guess, look at the color of the wires from left to right, and use that same color at the other end

for the x x and r r for hub port 1 and 2
i'll try to think of a way to explain this better later, i'm kinda tired right now.
here's some little graphics sorta and i bit more explanation.

Pin outs. They are reversed in the picture in order to prevent lines from
crossing, and I only included the pins used.

HUB PORT 1 HUB PORT 2
---------- ----------
x x r r r r x x
6 3 2 1 1 2 3 6
| | | | | |
| | | ---------------------- |
| | --------------------------
| |
| |
| |
| |
6 3 2 1
r r x x
-------
SNIFFER

x = xmit
r = rcv

Don