We are noticing this on a number of our openvpn clients:

[root@box ~]# netstat -tulpn | grep openvpn
udp        0      0     *                               1562/openvpn
[root@box ~]#

I am having a hard time finding any info via google regarding what is causing openvpn to open this random UDP port.

This port is random as it differs on each box, and when one restarts openvpn.

Any ideas?

  • Could you paste a client config into your question? – MadHatter Dec 15 '13 at 12:55

We have found the issue causing this.

We had nobind in our openvpn client conf.

After removing nobind, and adding the following:

local {OUR LAN IP}

The listen has changed to whatever IP we provide in "local".

  • Please accept your own answer as suggested in the SO FAQ. – kostix Dec 16 '13 at 11:21
  • Would love to... Even tried right after I entered the answer... But unfortunately I am not "allowed": "You can accept your own answer tomorrow". – anonymous-one Dec 16 '13 at 12:40

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