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2 routers, 2 separate networks, 1 modem… how? (lemmy.ml)

submitted 10 months ago by TaintPuncher@lemmy.ml to c/networking@sh.itjust.works

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Hey all, I was wondering if anyone could help me work out how to do this? Basically, I have a stupid number of smart devices and my router has become increasingly unstable. I want to have all my IOT devices on one router and reserve the other for priority devices like phones and PCs.

I plan to put my IOT hub on 2G only and my primary hub on 6G and 6e only to avoid 2G congestion.

Problem is, if I connect both my routers to my modem, only one can connect to the internet. I tried putting a network switch between the routers and the modem, no dice.

Does anybody know how I can have 2 separate networks using 2 separate routers on a single modem? Both require internet connection but they don’t need to be able to communicate.

Thanks in advance for any help people can give :)

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[–] bobsuruncle@lemmy.world 5 points 10 months ago (1 children)

You could buy a pfsense capable mini-pc ~$200. It will give you, 1 wan port and 2 or 3 lan ports or repurpose an old desktop by updating it with a dual network card. The pfsense mini pc will use a lot less power long term. Then use your routers in access point mode, one for your IOT on 2.4ghz and one on 5ghz for the other stuff. You can set up the firewall to prevent the iot network on the second lan from seeing anything on the primary lan but still have full access to devices from the primary to the IOT network.

Easier solution is what was already suggested is by using vlans with one router and the setup the second router in access point mode for the IOT

[–] ArbiterXero@lemmy.world 4 points 10 months ago

This is the answer you’re looking for.

One router to control them all, and then 2 separate wifi ap’s