The specified 'Local port' is in use. Please select another value



  • I successfully created an open VPN tunnel to pfsense 2 now I want to add more users, do I use the same server CERT or create an entirely new client cert and server cert.  I have been trying both but when I create the server cert or use an existing cert I can't save with an errror stating "The specified 'Local port' is in use. Please select another value "

    Can 2 separate OPEN VPN users use the same port?

    Thanks for any assistance.



  • Does anyone have a solution to this?  I would assume 2 users connecting to a PFSENSE network via openVPN would be common. has anyone here successfully had 2 users connect with 2 different logins?



  • If you use a site-to-site tunnel, then you use different ports for each connection.

    If multiple users connect via a PKI to your server, then you only have a single server for all clients.
    You create a single server, and each client has his own .key/.crt file.



  • Thank You for the reply, I am not to sure how to setup PKI on the server as of now under open VPN if I edit the current and only user there under the server tab the "server mode' is setup as remote access SSL/TLS + user Authentication.  Can you explain further were to set it fo site-to-site tunnel?  These are roaming users that will connect via open vpn on their winxp machines.

    site-to-site tunnel

    @GruensFroeschli:

    If you use a site-to-site tunnel, then you use different ports for each connection.

    If multiple users connect via a PKI to your server, then you only have a single server for all clients.
    You create a single server, and each client has his own .key/.crt file.



  • Is there any tutorial to show hwo to setup OPEN vpn with PKI?  I have successfully created a VPN tunnel for a user but I need to have 4 users connected and I don't' want to open 4 ports up.  I would like them all communicating through the same port.

    Is there any advantages / disadvantages to setup this way?


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