Plex addon port usage

cll1 · February 6, 2024 at 2:49 AM

I have the plex addon in use on Kodi in LibreELEC, and I am able to play media without issue. I have ufw set up on the media server with an "Allow" rule for the Kodi IP:

Code

32400/tcp (plexmediaserver) ALLOW IN    x.x.x.x
3005/tcp (plexmediaserver) ALLOW IN    x.x.x.x
5353/udp (plexmediaserver) ALLOW IN    x.x.x.x
8324/tcp (plexmediaserver) ALLOW IN    x.x.x.x
32410:32414/udp (plexmediaserver) ALLOW IN    x.x.x.x

However, Kodi seems to be attempting to connect to many other source ports, which get blocked:

Code

[UFW BLOCK] IN=eth0 OUT= MAC=[mac address] SRC=x.x.x.x DST=[plex server ip] LEN=52 TOS=0x00 PREC=0x00 TTL=63 ID=48300 DF PROTO=TCP SPT=49004 DPT=32400 WINDOW=501 RES=0x00 ACK FIN URGP=0

The destination port is what I expect for plex (32400), but the source port is all over the place. Obviously, some traffic is being allowed on the expected port because media playback is OK, but why would these other ports be used and is there a way to restrict the plex addon to expected ports?

**sonofdibnah** · February 6, 2024 at 7:01 AM

Which Plex add-on are you using? The one from the Kodi repo doesn't work on the latest Kodi versions.

I use the one from the Plex forum and it is superb, having started out as an update to the broken Kodi add-on. It's now so much more. Hope this helps

https://forums.plex.tv/t/pm4k-plexmod-for-kodi-18-19-20-21/481208

**chewitt** · February 6, 2024 at 7:13 AM

Most client applications will generate multiple concurrent sessions in normal communications with their server target and thus use randomly assigned source ports to distinguish each session.

Some background reading: https://www.geeksforgeeks.org/difference-bet…stination-port/

Plex addon port usage

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