Tunnel using PSK not detected by dpd sig

[JustinAzoff]

In trying to reproduce another issue, I generated a new openvpn pcap. To make things easy on myself I used a pre shared key instead of TLS.

The resulting pcap doesn't get detected as openvpn. I'm not 100% sure if this is due to using a PSK, will know more once I set things up again using TLS.

I notice that wireshark flags a lot of the packets as things like

P_CONTROL_WKC_V1[Malformed Packet]
Unknown Messagetype[Malformed Packet]

but this is true for the openvpn_udp_hmac_256.pcap in this repo as well.

openvpn_psk.zip

[JustinAzoff]

A pcap generated with the same openvpn version and config, just switched over to use tls got detected OK, so the problem does appear to be due to the use of the static key