Tailscaled opens multiple ports?

Linux
1

hello and thanks,

ubuntu 21.04 + windows 10.21h1 - ts 1.14.0

trying to understand what tailscaled is using port 37856 for?

ubuntu@ubuntu:~$ sudo netstat -tulpn | grep tailscaled
tcp 0 0 100.114.3.55:37856 0.0.0.0:* LISTEN 9614/tailscaled
tcp6 0 0 fd7a:115c:a1e0:ab:37856 :::* LISTEN 9614/tailscaled
udp 0 0 0.0.0.0:41641 0.0.0.0:* 9614/tailscaled
udp6 0 0 :::41641 :::* 9614/tailscaled

2

That is most likely the peerapi port, only reachable over the Tailscale network. It is used to implement taildrop Taildrop (alpha) · Tailscale and other functions between nodes in the Tailnet.