Like other have said, PC Engines might be your best bet. Edgerouter lite and PoE are another alternative. They run on Octeon [1]. They might be a bit less expensive with somewhat smaller form factor. They also should be easier to get, like $90 on amazon. Installation might be easier on PC Engines.
You'll notice a lot of modal. I don't own either device, all the comments are second hand. [1] https://www.openbsd.org/octeon.html 2016-09-22 19:58 GMT+02:00 L. V. Lammert <l...@omnitec.net>: > There have been some good discussions lately about HW capable of running a > lot of traffic, .. but this question is about the other end of the > spectrum. > > Have a need for a small FW appliance that can be used to protect a single > machine and provide a simple way to whitelist a single IP or two. > > Two HW ethernet ports, OBSD compatible, small form factor, low cost. > > Any recommendations? > > Thanks! > > Lee > -- Cordialement, Coues Ludovic +336 148 743 42