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I saw this questionwhich looks kind of related, but I'm not sure as the answers are too confusing.

Basically, I want to SSH into my Raspberry Pi from my laptop. Eventually I want to have the Pi talking to the cloud (I want to install a personal VPN on it so I can be protected while traveling and just to learn).

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Now, before you ask why I have two wireless routers on my home network, Router A is for a home office and due to the lead in the walls separating the office from the home (part of the office was once an X-Ray room), the wireless signal doe snot propagate. So it's mainly used as a firewall and to connect the office desktop to the web. Router B does the heavy lifting.

Now, I've set up the network as such (I don't know much about networking, but of the little I do, I managed to build this setup). However, in my reading, I understand that I need to forward a port, namely port 22 for the Pi. But on which end? Which router forwards the port? And is there a better way to do this in general? I'm open to suggestions.

Just for the record, the two routers are identical, TRENDNet TEW-812DRU v1

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  • Unfortunately, questions about home networking and consumer-grade devices are explicitly off-topic here. Super User was the correct place to ask your question. Also, network classes are dead, killed in 1993 by RFCs 1517, 1518, and 1519, which defined CIDR (Classless Inter-Domain Routing). Modern networking doesn't use network classes, please let them rest in peace.
    – Ron Maupin ♦
    Jun 30, 2018 at 2:24

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