[Q] missing some of files under /dev.

[Takahide Nojima <nozzy123nozzy@gmail.com>]

Hello,

 Few days ago, when I did "apt-get full-upgrade" for my debian box (I'm
using debian sid),I found some device files under /dev were missing.
Thease missing files ,at least I found, are /dev/ppp,/dev/net/tun.

 [Q1] Does anyone know what process make thease files in debian sid?
       What package should I send bug-report? (ex. systemd? udev?)

Thank you in advance,
Takahide Nojima