routing help needed

i cant seem to get this working



my network comes in at 1 from 1 it must go to 2 from 3 it must go to 3



but i only have 1 eth port on my server

2 has 3 ether ports

and 3 has 5 eth port

but i want this connected with 433ah

so i can see what kind off trafic is goingt througt this connection

trafic from 1 to 3
can any 1 help me please
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