Deco X50 Mesh Guest network

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    Dean

    I meant to add that if I turn Emergency Access on for the guest wifi device, the DNS works fine.

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    Dean

    After some more research with Wireshark, I think the guest wifi device isolation is filtering at layer 2 (MAC address).

    I can see that the DNS responses are being sent correctly on the network from the gateway's IP address (in my case 192.168.0.1), but they have the Firewalla's MAC address.

    Hence when device isolation is enabled on the Deco, the DNS response is being filtered by the Deco and won't reach the client.

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    Firewalla

    Device isolation usually a way to block LAN traffic,  I am a bit surprised they also filter out router traffic

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