@Jon4t9ers wrote: ... I have IOT devices that I want to be totally separated from the rest of my network devices.
I know of no single device that would do what you want. You may find some food-for-thought in the discussion of Steve Gibson's "three router" approach to IOT security at https://pcper.com/2016/08/steve-gibsons-three-router-solution-to-iot-insecurity/.
Dual IP is not available in my area. Another option that would work for me is if the ports would be isolated from each other. Is there a cable modem that allows that? I have IOT devices that I want to be totally separated from the rest of my network devices.
They are phasing it out but if you like I can escalate this for you to the Comcast corporate employees that are available to these boards ? We've seen cases here where they have been able to get this accomplished for customers even when it is not listed in their rate cards, YMMV. You should get a reply here in your topic.