Hardware Offloading for IPsec Encryption/Decryption on FortiGate
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Questions and Answers

Which FortiGate models support hardware offloading of IPsec encryption and decryption?

  • Only some FortiGate models (correct)
  • None of the FortiGate models
  • All FortiGate models
  • FortiGate models with a specific processor type

    • By default, is hardware offloading enabled for supported algorithms?

  • It depends on the processor type
  • It depends on the model
  • Yes (correct)
  • No

    • What command can you use to disable hardware offloading per tunnel if necessary?

  • get vpn ipsec stats tunnel
  • diagnose vpn ike gateway list
  • config vpn ipsec phase1-interface (correct)
  • diagnose vpn ike gateway clear

    • What information does the command 'get vpn ipsec stats tunnel' provide?

    <p>Global overall counters related to all active VPNs</p> Signup and view all the answers

    What information does the command 'diagnose vpn ike gateway list' provide?

    <p>Summarized information about the VPNs</p> Signup and view all the answers

    What effect does the command 'diagnose vpn ike gateway clear' have?

    <p>Clears all phase-1s of all V-Doms</p> Signup and view all the answers

    What command provides detailed information for the active IPsec tunnels?

    <p>get vpn ipsec tunnel details</p> Signup and view all the answers

    What is the default setting for hardware offloading on FortiGate models?

    <p>Enabled for some algorithms</p> Signup and view all the answers

    What does the command 'diagnose vpn ike gateway clear' do?

    <p>Clears all VPNs</p> Signup and view all the answers

    What does the command 'get vpn ipsec stats tunnel' provide?

    <p>Global overall counters related to all active VPNs</p> Signup and view all the answers

    Which command displays the current IPsec SA information for all active tunnels?

    <p>diagnose vpn tunnel list</p> Signup and view all the answers

    Which command provides SA information about a specific tunnel?

    <p>diagnose vpn tunnel list name {name}</p> Signup and view all the answers

    What are the default UDP port numbers for IKE and IKE NAT-T, respectively?

    <p>UDP port 500 and UDP port 4500</p> Signup and view all the answers

    If NAT-T is enabled and there is a FortiGate located in the middle that is running NAT, what UDP port does IKE traffic use during the tunnel negotiation?

    <p>UDP port 4500</p> Signup and view all the answers

    What protocol is ESP traffic encapsulated in when NAT-T is enabled?

    <p>UDP</p> Signup and view all the answers

    If the VPN is up but the traffic can't cross the tunnel, what command should you use to troubleshoot?

    <p>debug flow</p> Signup and view all the answers

    What does the debug flow command show when traffic is crossing an IPsec tunnel?

    <p>Packet entering the tunnel</p> Signup and view all the answers

    What does the output of the debug flow command show if the traffic is not crossing the tunnel due to a routing misconfiguration?

    <p>Routing misconfiguration</p> Signup and view all the answers

    What does the debug flow command display if the traffic drops and why?

    <p>Traffic drops and the reason</p> Signup and view all the answers

    What does the debug flow command show after the phase-2 negotiation?

    <p>Extended authentication</p> Signup and view all the answers

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