teensy ethernet passtrhough (feasibility study)

gliderlover

New member
Hi all,

i'm looking for a project consisting of a ethernet "passthough" device which must inject some IP packets (basically, serial over ethernet) into/from a port, then leave the other IP trafic untouched, exposing another ethernet port. Maximum troughput would be 100mbit of routed trafic, while the teensy would inject very little data, comparable to a RS232 port at 115200, basically it must control a remote switch (pushdown one side, mosfet other side).
Hardware must be very compact, rather inexpensive and real-time based, so i would avoid thing such Rpi+linux OS. Neither i can put a switch, unless there's a *very* small one.
Do you think it possible to do with a teensy 4.1 + a second ethernet board like the ones avaiable for arduino (SPI based)? Suggestion on alternative HW are welcome.

Thanks!
 
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