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Packets from SSL Network Extender got dropped: "Reason: decrypted and user methods are not identical (VPN Error code 01)" Technical Level
Symptoms
  • Traffic from SSL Network Extender client gets dropped with:
    fw_log_drop_ex: Packet proto=6 10.150.250.131:54300 -> 10.162.210.49:3389 dropped by vpn_drop_and_log
    Reason: decrypted and user methods are not identical (VPN Error code 01);
  • SmartLog shows that traffic arrived from Site to Site VPN peer.
Cause

Environment: Same Gateway is also used for Site to Site VPN.

SSL Network Extender packetes were decrypted using the MSPI of Site to Site.


Solution
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