I have an application where I need to monitor and log the Ethernet packets transmitted from one Ethernet device (A) to another (B). I would like to use just one of the Ethernet ports on an NGW100 to sniff and log these packets. All I'm interested in are the packets transmitted by device (A) to device (B).
Is it possible to use just the receive side of the Ethernet port on the NGW connected directly to the cable between device (A) to device (B) to achieve this?
If this can be done, I could make a custom cable, but more likely, I would create a PCB with three RJ connectors. One would connect to the NGW100 Ethernet port the other to device (A) and the 3rd to device (B). The device (A) would be connected to device (B) via the PCB and the signals to sniff would be connected to the NGW100.
Due to cost constraints, I cannot use an Ethernet HUB in this application and the second Ethernet port on the NGW100 is already in use.