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Thread: How are messages actually sent? One Zone not working - how to debug :(

  1. #41
    Automated Home Guru
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    The latest Sky router has an in-built modem so not passible, although I understand one of the four ports is a so-called WAN port, I'll experiment - for other readers, this is for that reason alone, not fault finding an HR92 as this thread is going off topic a little.

  2. #42
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    You can't do passive promiscuous sniffing of encrypted wifi networks, even if your laptop knows the PSK for the network and most wifi adaptor drivers don't really support a promiscuous mode anyway. To sniff in this way you'd need to use an Open network and a wireless adaptor whose driver really did support promiscuous mode with Wireshark.

    A much better way that is usually the only feasible way to do sniffing of a wireless connection is to have a wireless router that is separate from your broadband router, and either an old fashioned hub, or a switch that supports port mirroring. Most managed switches - even the cheap 30 8 port D-Link one I have can do port mirroring.

    You plug your switch into your broadband router, plug your laptop into the switch and plug your second wireless router into the switch as well. Configure the switch to mirror all traffic on the second wireless routers port to the laptops port. This will give you the same result as using an old fashioned hub but without the speed penalty.

    Configure your evohome to connect to this second wireless network not your normal one. Put your laptop in promiscuous mode over Ethernet.

    Now you can monitor all traffic from the Evohome back to the Honeywell servers. If Honeywell have done their job right it will all be encrypted and inscrutable though...
    Last edited by DBMandrake; 17th October 2016 at 11:54 PM.

  3. #43
    Automated Home Legend paulockenden's Avatar
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    If I remember correctly (it was a long time ago when I did this) the initial handshake is unencrypted, but then after that everything is hidden inside an SSL tunnel.

  4. #44
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    Quote Originally Posted by paulockenden View Post
    Is it for API V1 or V2?
    If you hit this URL now https://tccna.honeywell.com/WebAPI/ you get presented with a Help login screen. Where if you enter the details we know the App uses, you get access to the WebAPI help pages.

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