I'm looking for a device that can be plugged in between a client computer and a switch and records all ethernet packets and puts it into a pcap file or similar in order to analyse it with wireshark.
I'm thinking of something like pwnie express or pwn plug that can possibly build by myself of purchased for a reasonable price.
In professional environments there are things like netoptics taps but those'd be too expensive.
Maybe there are existing projects you can recommend?
