Sanity Check with DHCP configuration

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    Firewalla

    Can you check your router's IP address and see if it is 192.168.253.1?  if it is, you will need to change the overlay network address to 192.168.253.2 (or .3/.4...)  

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    Anil Rhemtulla

    My router's IP is 192.168.253.254 (what I set as the gateway). My setup works fine for a few days, then seems to collapse.

    If I've configured the gateway to "192.168.253.254", do you have any idea why my traceroute above would possibly hop from "192.168.253.1" to ""192.168.253.1"? Does that indicate that Firewalla reconfigured the gateway, or has messed up routing tables?

     

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    Firewalla

    Looks like something is clashing.  Can you double-check your network and see if you have 192.168.253.254 duplicated from two devices?

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    Anil Rhemtulla

    Interesting. I'm not quite sure how to test that - I believe I have a full list of all my devices (ug, too many) and have them in DHCP with reserved addresses. Perhaps I'll change the Firewalla's 192.168.253.1 and router's 192.168.253.254 IPs to something different to see if that helps.

    As all of my devices are using DHCP though, if there's a clash it would suggest either there's a second DHCP server running (I couldn't find one) or the Firewalla created the clash on it's own.

     

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