The
pppoe(4) indicates that the issue is if I both connect via pppoe and run NAT - either one separately is not an issue. So the question is if I'm running NAT and this is also confusing. My "Learn Networking in 24 hours" handbook says that if I'm using the 192.168.1.1 address block then I am using NAT. My router does not refer to that syntax and I have disable any port forwarding or vpn.
I did set the routers MTU from Auto -> Manual at 1492. If I am running NAT then it looks like the best way to set this is via a /etc/pf.conf entry. I'm assuming they do not support jumbo frames as their supervisor instructed to set the modems mtu at 1492.
Am I running NAT based on a router, dumb'd down for home users, with an address of 192.168.1.1 and a modem address of 192.168.0.1?