@Bob.Dig I will work on some pics but it's been in a state of evolution as a test network running another scenario at the moment - but when I can switch it back to this I was looking for some things to focus on and try. I used an interface group for NAT rules because one of the tutorials I read showed to do that and said create a group or do rules for every one. Seemed like a group would be best practice then for larger numbers - but you you recommend to just do a NAT entry for each instead?

Yes, PPPoE has special handling even though it's also a dynamic gateway. That will also appear in the config if you edit and save it though. Steve

Does anyone have any idea on the implementation of this please?^

@SergeCaron This is the result of a configuration error. Mine, of course! The "Disable Gateway Monitoring Action" option was checked on the Tier 1 Gateway on Box #1. Clearing this option, everything is working as expected on both boxes. Regards,

Thank you @jimp That helps clarify quite a bit. There really isn't much available about the "Skip Rules" setting. Based on the documentation, your answers are what I expected, but I wanted to be sure. Thanks again, Josh