Compression block connection

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Joined: Sun Apr 02, 2023 10:15 am

Compression block connection

Post by flarup » Sun Apr 02, 2023 10:23 am

I have a self hosted openvpn connection which works fine on my Linux and Android, now I suddenly needs it on Windows-10

I installed openvpn and loaded the ovpn file, and then I got the log below

I looks like compression is being used, but compression should not be used in version 6.1+

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2023-04-02 12:06:07 Note: --cipher is not set. OpenVPN versions before 2.5 defaulted to BF-CBC as fallback when cipher negotiation failed in this case. If you need this fallback please add '--data-ciphers-fallback BF-CBC' to your configuration and/or add BF-CBC to --data-ciphers.
2023-04-02 12:06:07 OpenVPN 2.6.2 [git:v2.6.2/3577442530eb7830] Windows-MSVC [SSL (OpenSSL)] [LZO] [LZ4] [PKCS11] [AEAD] [DCO] built on Mar 24 2023
2023-04-02 12:06:07 Windows version 10.0 (Windows 10 or greater), amd64 executable
2023-04-02 12:06:07 library versions: OpenSSL 3.0.8 7 Feb 2023, LZO 2.10
2023-04-02 12:06:07 DCO version: v0
2023-04-02 12:06:08 TCP/UDP: Preserving recently used remote address: [AF_INET]
2023-04-02 12:06:08 ovpn-dco device [OpenVPN Data Channel Offload] opened
2023-04-02 12:06:08 UDP link local: (not bound)
2023-04-02 12:06:08 UDP link remote: [AF_INET]
2023-04-02 12:06:08 [] Peer Connection Initiated with [AF_INET]
2023-04-02 12:06:10 Compression or compression stub framing is not allowed since data-channel offloading is enabled.
2023-04-02 12:06:10 OPTIONS ERROR: server pushed compression settings that are not allowed and will result in a non-working connection. See also allow-compression in the manual.
2023-04-02 12:06:10 ERROR: Failed to apply push options
2023-04-02 12:06:10 Failed to open tun/tap interface
2023-04-02 12:06:10 SIGUSR1[soft,process-push-msg-failed] received, process restarting
The configuration file looks like this

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dev tun
remote-cert-tls server

remote 1194 udp


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