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"Different community ID, possible NAT problem (VPN Error code 02)" error on packet drop
  • Packet is dropped with "Encryption failure: Different community ID, possible NAT problem (VPN Error code 02)" message in SmartView Tracker when connecting with SmartDashboard over VPN.

  • SmartDashboard cannot connect over VPN with Simplified Mode Security Policy to the Security Management server, through a VPN Community.

In Traditional Mode, the security gateway is not a part of the VPN Domain by default, which means that it does not attempt to encrypt CPMI traffic.
In Simplified Mode Policy using VPN Communities, security gateway automatically becomes a part of the VPN Domain. The GUI connection attempt is dropped on the CPMI implied rule, which does not include encryption, since it is applied before the VPN Community rule.

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