I've been running with the same config for months now, but after 2:00 am this morning inbound traffic is no longer being translated for the static IPs. Instead of receiving traffic with the mapped 10.1.10.x LAN traffic I am instead getting traffic with the static IP. I have verified 1-to-1 Network Address Translation is enabled as shown below Tried rebooting the DPC without effect.
Can those LAN devices reach the Internet when 1:1 is turned on? I had the same modem and it gradually stopped passing packets through any 1:1 NAT route. Packet loss grew higher and higher until only a few packets per minute passed through. A factory reset didn't fix it and no Comcast tech knew what 1:1 NAT is so the modem had to be replaced.