2nd ip Address Request for use with SB8200

I believe the speed is total to the modem. So the two IP's, if used simultaneously, would get roughly half your bandwidth each.

This was answered here: https://forums.xfinity.com/conversations/internet/answered-how-to-get-multiple-ipv4-addresses-for-your-modem/602daff6c5375f08cd1db24c. I looked at the PDF myself, which was specific to my service area (i.e., the county I live in and a few nearby counties) and multiple IP addresses are not listed under the XFINITY INTERNET heading. It's unusual for residential Internet service to have multiple IP addresses.

To answer your second question, the number of IP addresses the modem has allocated to it is completely independent of the speed of the service to the modem. Having multiple IP addresses will not increase or decrease the speed of the service. Still, multiple IP addresses can be used in interesting ways. For example, if you happened to work from home a lot (or always), you could set up a router to use one IP for just your work-related Internet traffic and the other IP for everything else in the house. Even so, if the (hypothetical) kids start their Twitch and YouTube streams, your upload speeds might drop to nil for the work and "other" networks as a whole, and your Zoom call for the meeting will still fail, buffer, or generally be miserable. That's because all the Internet traffic - regardless of the IP address it originates from or is going to - goes through the single modem that determines the speed of your service. Also, you would have a more configurable (e.g., business-class) router to handle multiple IP addresses on the same WAN port.

@HiSpeed_LowPing 

FWIW. The info at the link given is two years old. Things have changed. They are phasing it out but I'm going to escalate your issue 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. Good luck !

Appreciate the description. I guess if I wasn't so dead tired last night and given it some thought, I would've saw the obvious there haha. The idea would be to use the SB8200 using one port for with my XR1000 to handle my gaming needs and work from home stuff while using my other router for all of the other streaming devices and tons of smart home devices.

Although my XR1000 is great at handling the traffic and minimizing the buffer bloat if I am gaming and there are multiple TV's streaming 4k, phones youtubing, etc., I do notice that the max throughput takes a hit as the XR1000 processor usage gets way up there. I'd like to offload some of that traffic management to another router and ip because I am extremely anal when gaming and from years of semi-professional play can notice the slightest increases in ping/packet loss/etc.

Thank you for the escalation.

@HiSpeed_LowPing 

Quite welcome ! Best of luck with it !