For 100Mbit/s Ethernet using electrical physical layers, can I split the physical line (after the driver and the RJ45) and observe what has been sent to another receiver using another physical driver and ethernet chip? Would I run into physical issues or limitations like changing the impedance of the lines to level beyond what is tolerated as the pure normal point-to-point Ethernet connection would be lost? Any other issues I may encounter?
Thanks for any help, info or pointers. If the description is too informal, please let me know?
+Michael