I am trying to debug a problem where I appear to have two different active DHCP servers on my network. My setup:
ONT -> (ethernet) -> Google WiFi -> (ethernet) -> MI424WR -> (coax) -> several tivos
So I have Google WiFi as the primary router and MI424WR configured as a bridge onto the MoCA network. I have configured the MI424WR to disable DHCP, disable WiFi, disable WAN side network and coax. I have also provided it a static IP on the Google WiFi subnet (192.168.86.0/24). Essentially I just want it to bridge the MoCA network onto the Google WiFi controlled network. The TiVOs are configured to join the MoCA network.
If I disable the MI424WR, the the Google WiFi network works correctly -- multiple devices can connect via WiFi or LAN ports, receive IP addresses (on the 192.168.86.0/24 subnet) and access the Internet.
When I enable the MI424WR, something responds to DHCP requests on any of the mediums (ethernet, WiFi, MoCA) with a 192.168.1.0/24 address. Note that Google WiFi's DHCP server is only on 192.168.86.0/24. I've triple checked the MI424WR to confirm DHCP is disabled on it. It seems either those DHCP responses are coming from something on the MoCA network.
So my long winded question: does the ONT run a DHCP server? I don't have a solid understanding of how MoCA work, but my understanding is the MoCA network is "created" by the ONT. Does that include allocating IP addresses?