FortiGate
FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
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Article Id 197144
Article
Description SSL VPN tunnel configuration recommendations
Components
  • All FortiGate units running FortiOS 3.0 MR4 or higher
Steps or Commands

For general configuration of SSL VPN Tunnels, Use the SSL VPN User Guide.

SSL VPN network diagram.

Recommendations

  • Place the SSL VPN firewall policies at the top (source IP can be all or must be the originating public IP address) of the policy list.
  • Add a deny policy below the SSL VPN policies to avoid overlap with the other firewall policies (the source is then the SSL VPN tunnel IP range).
  • If multiple SSL VPN groups with unique access permissions are configured, restrict tunnel ranges and use firewall addresses that match the specified tunnel ranges.

Troubleshooting

  • You can sniff the traffic as outlined in the Knowledge Base  article Using the FortiOS built-in packet sniffer
  • You can check the sessions using the CLI commands:

    diag sys session filter {dport | dst | policy | proto | sport | src}

    diag sys session list


Related Articles

Troubleshooting Tool: Using the FortiOS built-in packet sniffer