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Benefits of running 2 Wi-Fi networks from the same router? What are the downsides? (I don't know if there is a better community for this question) (discuss.tchncs.de)
submitted 8 months ago by unknowing8343@discuss.tchncs.de to c/selfhosted@lemmy.world
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I am worried that there is not really a benefit of doing that, just more noise and energy consumption.

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[-] dan@upvote.au 46 points 8 months ago* (last edited 8 months ago)

Energy consumption is essentially the same, as it's using the same radios.

For what it's worth, I have several SSIDs, each on a separate VLAN:

  • my main one
  • Guest. Has internet access but is otherwise isolated - Guest devices can't communicate with other guest devices or with any other VLANs.
  • IoT Internet: IoT and home automation devices that need internet access. Things like Ecobee thermostat, Google speakers, etc
  • IoT No Internet: Home automation stuff that does not need internet access. Security cameras, Zigbee PoE dongle (SLZB-06), garage door opener, ESPHome devices, etc

(to remotely access home automation stuff, I use Home Assistant via a Tailscale VPN)

Most of these have both 2.4Ghz and 5Ghz enabled, with band steering enabled to (hopefully) convince devices to use 5Ghz when possible.

This is on a TP-Link Omada setup with 2 x EAP670 ceiling-mounted access points. You can create up to 16 SSIDs I think.

[-] unknowing8343@discuss.tchncs.de 2 points 8 months ago

That was an amazing read. Thank you.

What do you say is the use case for separating guest Wi-Fi with the more "private" stuff on your network?

As far as I understand... Basically all communications, even inside a network, are encrypted... So I guess you do that to avoid someone trying to exploit some vulnerability?

[-] Strit@lemmy.linuxuserspace.show 6 points 8 months ago

I think the main benefit is that Guests devices on your network can't find and exploit your own devices.

[-] geophysicist@discuss.tchncs.de 1 points 7 months ago

If you don't trust the person, why give them access to your WiFi in the first place?

[-] osprior@lemmy.world 8 points 7 months ago

You can trust the person, without trusting their technical skills, such that they haven't inadvertently installed malware on their own devices.

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this post was submitted on 04 Mar 2024
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