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    Problems with IPsec vpn between pfSense and Oracle Cloud Infrastructure

    Scheduled Pinned Locked Moved IPsec
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    • DerelictD
      Derelict LAYER 8 Netgate
      last edited by Derelict

      Site-to-site tunnels to 0.0.0.0/0 will catch all traffic from the source network including traffic to the internet. I would not recommend doing that, and it is doubtful Oracle cloud IPsec requires it.

      If the networks in your Phase 2 are the problem, that will show in the IPsec logs. Check the log settings )VPN> IPsec, Advanced) and be sure that IKE SA, IKE Child SA, and Configuration Backend are set to Diag. Everything else can be Control.

      Look at where it is failing and compare with this:

      https://www.netgate.com/docs/pfsense/vpn/ipsec/ipsec-troubleshooting.html

      Or, of course, you can post the logs here.

      When you create a new IPSec connection, you specify a list of IPv4 networks that should be routed from your dynamic routing gateway (DRG) through the IPSec tunnel to your CPE.

      Right. All of those routed networks should be specified as Local Networks in Phase 2 entries on your side. The Cloud CIDR should be the Remote Network for all of them.

      Chattanooga, Tennessee, USA
      A comprehensive network diagram is worth 10,000 words and 15 conference calls.
      DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
      Do Not Chat For Help! NO_WAN_EGRESS(TM)

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      • R
        RodrigoCBraga
        last edited by

        LogPart1
        LogPart2
        LogPart3
        LogPart4
        LogPart5
        LogPart6
        IPSEC
        IPSEC RULES
        NATOUTBOUND
        RULES WAN
        STATE FILTER
        STATIC RULES

        My set up.
        I hope you can help me.
        Thanks.

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        • DerelictD
          Derelict LAYER 8 Netgate
          last edited by

          Delete any static routes you added like that 10.72.0.0/16 to 192.168.1.1. That is not how IPsec works.

          Honestly, it looks like your IPsec is doing what you asked it to do. Need to find out why the host in the cloud (10.72.112.30) isn't responding or why your traffic isn't coming back. That's more of an oracle question.

          Chattanooga, Tennessee, USA
          A comprehensive network diagram is worth 10,000 words and 15 conference calls.
          DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
          Do Not Chat For Help! NO_WAN_EGRESS(TM)

          R 1 Reply Last reply Reply Quote 0
          • R
            RodrigoCBraga
            last edited by

            This post is deleted!
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            • R
              RodrigoCBraga
              last edited by RodrigoCBraga

              I have a doubt.
              In pfsense it is possible to do configuration where in phase 2 has the network 0.0.0.0/0 as local and remote?
              Attached, screen with configuration between Palo Alto firewall and Oracle Cloud Infrastructure.
              Palo Alto Phase 2

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              • R
                RodrigoCBraga @Derelict
                last edited by

                @derelict
                Hello, can you still help me?

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                • DerelictD
                  Derelict LAYER 8 Netgate
                  last edited by

                  Help how?

                  Chattanooga, Tennessee, USA
                  A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                  DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                  Do Not Chat For Help! NO_WAN_EGRESS(TM)

                  R E 2 Replies Last reply Reply Quote 0
                  • R
                    RodrigoCBraga @Derelict
                    last edited by

                    @derelict said in Problems with IPsec vpn between pfSense and Oracle Cloud Infrastructure:

                    Help how?
                    Yes.

                    I have a doubt.
                    In pfsense it is possible to do configuration where in phase 2 has the network 0.0.0.0/0 as local and remote?
                    Attached, screen with configuration between Palo Alto firewall and Oracle Cloud Infrastructure.
                    Palo Alto Phase 2

                    1 Reply Last reply Reply Quote 0
                    • E
                      Ernani @Derelict
                      last edited by

                      @derelict

                      Hello, I would like to ask your attention to verify Oracle documentation and to comment that Pfsense is compatible and support Oracle VPNAAS.
                      1 - Oracle documentation to a Generic CPE:
                      https://docs.cloud.oracle.com/iaas/Content/Network/Reference/genericCPE.htm

                      Requirements for generic CPE devices are:

                      local=0.0.0.0/0
                      remote=0.0.0.0/0
                      service=any

                      Please let us know your thoughts about that.

                      Regards,
                      Ernani

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                      • DerelictD
                        Derelict LAYER 8 Netgate
                        last edited by Derelict

                        Personal opinion:

                        I think that is completely uncalled for.

                        On pfSense that will catch all traffic and send it over the tunnel unless extreme measures are taken to bypass it. And there is no way to bypass traffic from the firewall itself.

                        I cannot see how Oracle expects that to work for people.

                        Again, you should be able to create Phase 2 entries with your cloud subnet as remote and your local subnet(s) as local.

                        Chattanooga, Tennessee, USA
                        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                        Do Not Chat For Help! NO_WAN_EGRESS(TM)

                        E 1 Reply Last reply Reply Quote 0
                        • E
                          Ernani @Derelict
                          last edited by

                          @derelict

                          I agree with you, since I have configured others tunnels with different suppliers to Oracle without use that requirement, but I saw some intermittencies.

                          Thank you,
                          Ernani

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