VPN接続を介して適切なアップデートを実行するには？

デフォルトソースの使用

deb http://deb.debian.org/debian bullseye main
deb-src http://deb.debian.org/debian bullseye main

deb http://deb.debian.org/debian-security/ bullseye-security main
deb-src http://deb.debian.org/debian-security/ bullseye-security main

deb http://deb.debian.org/debian bullseye-updates main
deb-src http://deb.debian.org/debian bullseye-updates main

apt updateVPNに接続していない場合はうまく機能しますが、VPNに接続した後にコンポーネントがタイムアウトapt updateします。bullseyebullseye-security

$ apt update
Get:1 http://deb.debian.org/debian bullseye InRelease [113 kB]
Err:1 http://deb.debian.org/debian bullseye InRelease
  Connection timed out [IP: 151.101.54.132 80]
Get:2 http://deb.debian.org/debian-security bullseye-security InRelease [44.1 kB]
Err:2 http://deb.debian.org/debian-security bullseye-security InRelease
  Connection timed out [IP: 151.101.54.132 80]
Get:3 http://deb.debian.org/debian bullseye-updates InRelease [36.8 kB]
Fetched 36.8 kB in 1min 1s (601 B/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
W: Failed to fetch http://deb.debian.org/debian/dists/bullseye/InRelease  Connection timed out [IP: 151.101.54.132 80]
W: Failed to fetch http://deb.debian.org/debian-security/dists/bullseye-security/InRelease  Connection timed out [IP: 151.101.54.132 80]
W: Some index files failed to download. They have been ignored, or old ones used instead.

apt updateVPN接続を介してどのように機能しますか？