When posting, you need to think more like a successful fisherman, and use enticing bait instead of dangling an empty hook into the water and expecting to get any nibbles.
You have provided insufficient information. You haven’t even included a link to your previous post that at least has some infomation about your setup.
Some questions. Does the “FIOS router” need to have a direct connection to the L2 network the FIOS ONT provides?
Or does it work in the configuration you posted here?
What have you tried? What was your expectation and how was it different than the result?
What resources have you studied? Have you skimmed the official documentation? used Google to search? Watched youtube videos?
Some recommendations for adding bait to your request for help post follow:
A quote from George Pólya’s book How To Solve It “It is foolish to answer a question that you do not understand. It is sad to work for an end that you do not desire.”
So be sure to give enough infomation so we understand the problem and your requirements. And avoid The XY_problem
See Getting Answers and How to Report Bugs Effectively
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