Open VPN Error

[blubb1992]

Hello,

I get the error message "TLS Error: cannot locate HMAC in incoming packet from[AF_INET]" when trying to establish an OPEN VPN connection. What am I doing wrong? What should this error message tell me?

I'm trying to build the VPN from a synology to the PFSENSE OPENVPN-Server.

What approaches are there that I can examine? I followed the instructions exactly…

Thank you very much.

[johnpoz]

Without your config and your client config.. Did you want us to look into our magic balls?

Guessing I would say you have something wrong did you create your key, do you have the direction correct..

Really need to see your configs of you want us to help.

[blubb1992]

Hi,

of course. If you can't say anything more about the error message without the client configuration, I will be provide it. Maybe someone knows the error and knows where it is;)

I have created a CA, then a server certificate for the CA (validity 3650 days, key length 2048 and digest sha256). Then I created a user and password. Insert the user into appropriate groups and then create a user certificate (same settings as above) and export.

VPN server configuration:
Server mode: Remote access (SSL/TLS + User Auth)
Protocol: UDP on IPv4
Adapter type: do - Layer 3 Tunnel Mode
Interface: WAN
Local Port: 1194
TLS configuration: check (use TLS key)
TLS key Usage type: TLS authentication
Certificate authority: The created CA
Diffie Hellmann Parameter length: 2048 bit
ECDH curve: Use default value
Encryption algorithm: AES-256-CFB
Activate NCP: check
NCP algorithm: AES-256-GCM and AES-128-GCM
Auth hash value algorithm: SHA256
Hardware cryptography: none
Certificate depth: One (Client & Server)
Strict user-CN compliance: none

At the client I simply entered the data and imported the user certificate.

Thank you:)

[johnpoz]

Entered what data?

So your using a tls authentication mode - so the user needs also ta.key, etc.

So your client would need 3 the CA, the User and the ta.key…  You imported those all into your nas?