you could theoretically forward _all_ ports to a single port on the switch, but unless your network doesn't have a lot of traffic that will bring down your switch
you may want to ask this on the forum of your preferred switch manufacturer
if you really need to monitor everything you could supersegment your switch so each port has a single vlan, then connect the firewall via a trunk and create a subinterface for each vlan, that way all traffic needs to go through the firewall.
you could set it to layer2 mode if you don't want to route and subnet
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