When I use the SNMP Cisco ASA VPN Traffic sensor and the tunnel is established with IKEv2 (shown type: User to LAN), I get the error message:
There is no active connection for this remote IP address. The reason might be an issue with Cisco's SNMP component. The data that PRTG receives from the device is incorrect. To resolve this issue, see https://kb.paessler.com/en/topic/59643. (code: PE123)
If the same VPN tunnel is established with IKEv1 (shown type: LAN to LAN), there is no problem.