Subj : Re: Using a Pi as a firewall
To   : MeaTLoTioN
From : Greenlfc
Date : Wed Aug 25 2021 21:13:28

Aside from using VLANS (which I'm not a fan of in this use case - sharing 
uplink and internal comms), you can always use USB 3.0 if the throughput isn't 
too high.

Another option that I think would be interesting would be to either mod the 
device to get access to the PCIe bus and run a traditional dual-port 1GB card 
directly, or get the Compute Module with an appropriate breakout.

I don't currently own a Pi4.  I've got an original Pi-B running as an ssh jump 
box, and a couple of Pi 2Bs running miscellaneous things as needed. (SPI 
programming, etc).

If you follow Jeff Geerling on YT, he recently linked to a MicroATX backplane 
for four Pi4 Compute Modules or Jetson Nanos, with an integrated managed switch 

















































































































































































































































































































































































































































































































































































































































































































































and shared power via an ATX connector (a pico-PSU would drive it adequately).  
Here's a link to the blog post: https://turingpi.com/turing-pi-2-announcement/

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