I do not believe it is a GRE tunnel. I have seen (Charter) and heard quite a few run RIP or some other routing protocol on the CPE.
Though I have not seen anything specific about Comcast specifically. Brandon Jackson On Thu, May 7, 2020, 16:54 Brandon Martin <[email protected]> wrote: > On 5/7/20 4:49 PM, Javier Gutierrez Guerra wrote: > > Just wanted to reach out and get an idea how is people managing > customers with static Ips, more specifically on Docsis networks where the > customer could be moved between cmts's when a node is split > > Around here, Comcast seems to provision a GRE tunnel from the CPE back > to some router within their network and run it over whatever IP address > the CMTS hands out to the modem. Not very efficient, and it mandates > that you use their CPE (they won't give you the necessary info to set it > up yourself). > > AFAIK, such service is only available on their "business class" DOCSIS > product and is upcharged even then. > -- > Brandon Martin >
