bluetooth - What does "disableplugins = pnat" do? -

https://youtu.be/gsmthzinnsc

at about ~8:47 in above video, author shows disableplugins = pnat added /etc/bluetooth/main.conf, unclear why added it.

what configuration setting do?

judging video's author explains , corroborating blog post, disableplugins = pnat disables pnat plugin avoid problems using raspberry pi bluetooth stack:

there plenty of guides in internet on how bluetooth working, method worked consistently me following:

1. disable bluetooth pnat support there seems bug stops proper operation pnat enabled. full details can found here: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=690749

looking @ debian bug's details, explains pnat plugin "breaks application tries run rfcomm server".