📞Creating a Guest Wi-Fi on OpenWRT that can only access WhatsApp🤙

This is a article explains how to configure OpenWRT so that a guest WiFi can only access Whatsapp but it can be used generically to whitelist access from the guest Wi-Fi.

Make certain the /etc/resolv.conf has Quad9 as the name server:

search lan
nameserver 9.9.9.9
nameserver 1.1.1.2

We are using a dumb interface with no WAN interface. The WAN interfaces are deleted.

Create a bridge device named br-guest that is empty and make it for startup.

Create an interface named guest with the device br-guest. Associated the zone guest with this interface. Configure a static IP on the interface such as 192.168.254.254/24. Enable DHCP from 50 and allocation 200 IP addresses.

The firewall needs to look like this:

You can now add Wi-Fi SSIDs to the interface guest.

In the DNSMASQ configuration select ignore resolve file. DNSMASQ will now not resolve anything on the guest Wi-Fi.

You then add the whitelisted domains. In our case its whatsapp.

The guest Wi-Fi will now only work with Whatsapp!

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📞Creating a Guest Wi-Fi on OpenWRT that can only access WhatsApp🤙

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