I don't know of anyone making such kind of wires but a modified vampire tap might be what you are trying to create, depending on the kind of cable being used, of course. Why not just put 2 NIC's in your laptop (assuming you are going to use a laptop for this ...) and act as a bridge between the two hosts. You could easily then use tcpdump or another utility to keep an eye on the packets. Just an idea.
Ash --- Darkfire Secure Linux -- http://www.gnulinux.net Calhoun, Heath wrote: >Hello. I am looking for a cable to aid with sniffing. >This cable should have jacks on both ends and one in the middle. >Why, so I can plug a feedline into one end, the other into the port or jack >or cable where the cable originally went and the jack in the middle so I can >tap the line with a sniffer. (If I needed I have attempted to build one >using punch down jacks, but the opposite end would not work. The middle and >other end would though. >Does anyone know of a commercial source for a cable like this or plans to >make one? > >Heath Calhoun >