SS w/Google WiFi
  • I have had a modest seven IP camera system running SS for years without a hitch and hate to break what's working, but...

    My Apple Airport, part of a wired/wireless system, died after a long illness and I installed Google WiFi as a replacement, along with some general network upgrades. There are a few idiosyncrasies with GWF that I want to ask about before getting SS up and running again:

    1. It has its own DHCP router that is, supposedly, challenging/impossible to disable. Its default IP address is instead of the more common in my Motorola gateway. Google recommends the hookup sequence as gateway --- GWF ethernet in ---GFW ethernet out---switch---(computers, printers, stuff). DCHP is handled by GWF now and no issues. I've heard that two active DCHP servers are "bad" (though no apparent problems so far) - should I turn it off on the Motorola gateway?

    2. GWF has settings to reserve IP addresses, which I will use for the Mac Mini running SS and the IP cameras.

    3. I assume I'll have to directly access all IP cameras and reset their IP addresses to the GWF LAN numbering for static IP addresses.

    4. Since it seems that any DCHP from the gateway is blocked/ignored, am I correct to set up SS port forwarding based on the GWF box, not the Motorola gateway?

    Any other issues that I have missed?

    Thanks in advance...excellent information in this forum!

  • If your Motorola "gateway" device is running a DHCP server, this means that it is acting as a router (providing NAT). The Google WiFi is also a router by default, and this double-NAT situation is very tricky for setting up remote access to your SecuritySpy system (or any other device on your network) from the Internet. You will want to set one of these devices to bridge mode (which turns off its NAT features) to resolve this issue. Therefore you have two options:

    1. Set the Google WiFi device to bridge mode, so that your Motorola device is the only router. If your AirPort was set to bridge mode previously, then this is the easiest solution, as your setup will remain basically the same as before and you won't have to change anything else.

    2. Set your Motorola device to bridge mode, so that the Google WiFi device is the only router. If your cameras have static IP addresses that are on a different subnet to the Google WiFi's new LAN subnet (i.e. 192.168.0 vs 192.168.1), then these will all have to be changed to the new subnet. Additionally, if you had set up remote access to SecuritySpy previously via port forwarding in the Motorola, this will have to be set up again in the Google WiFi (although there's a good chance that this can be handled automatically via the "Allow access from the Internet" options in SecuritySpy under Preferences - Web, as long as you aren't in the double-NAT situation).

    Please let me know if any of this isn't clear.

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