New problem solver
Netgear CG3000DCR allocates /60 but won't route to it.
Tech swapped out SMC for Netgear on request to get IPv6 static PD working. I have dhcp6c making a PD request and the CM returns a PD reply with /60. dhcp6c installs prefixes on the other ethernets as it should but the CM does not have a route to the /60. I used tcpdump to capture packet trace of PD exchange and all is fine. When I ping the CM from a source address in the /60 I see the packets go to the CM but no response from the CM.
I see others have claimed better luck with CG3000DCR and getting a /60. Any hints on getting the CM to route to the /60 PD is suballocated?