Thanks. Links aren't clickable. Maybe these will be:

https://news.ycombinator.com/item?id=30707711

https://news.ycombinator.com/item?id=24241105

Thanks! Macroexpanded:

How NAT traversal works (2020) - https://news.ycombinator.com/item?id=36969018 - Aug 2023 (106 comments)

How NAT traversal works (2020) - https://news.ycombinator.com/item?id=30707711 - March 2022 (37 comments)

How NAT Traversal Works - https://news.ycombinator.com/item?id=24241105 - Aug 2020 (28 comments)

(p.s. your links weren't clickable because lines that are indented with 2 or more spaces get formatted as code - see https://news.ycombinator.com/formatdoc)