Dual Stack on customer owned modem?
I have a Comcast Business account using my own modem and a standard issue dynamic address (too cheap to pay for a static address). My modem is a Cisco branded DPC3008 docsis 3.0 modem, connected to a NetGate PFSence firewall.
I have found very little documentation on the the proper confiuration for IPv6. I have treid both dhcp6 and SLAAC, all have the same result, the WAN interfacce is only assigned a link-local address (fe80::*) for IPv6 and a subnetted class A IPv4 address. I can ping6 the Comcast router, but nothing "past" that due to the limitation of the link-local address. IPv4 works as expected. I want to ecperiment with IPv6 and can not until I can get this issue resolved.
I have opened 2 separate cases, they even dispatched a tech to my location, but the tech was not able to do anything, which is what I expected. I have asked to have my case escaleted to the net level support. Either I'm not asking the right questions, or the CSR is not understanding what I am asking for.