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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

      You can packet capture on the IPsec interface (enc0) to see if pings are going out, replies are being received, etc.

      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

        Thanks for your help.
        The client said that analyzing the logs and with a similar problem they had with a PaloAlto solution is necessary to include a new remote network 0.0.0.0/0.
        I need help to do this procedure, because when I try to create a network there is no / 0 option. Can you help me?

        Security Parameter Index

        The Oracle Cloud Infrastructure VPN headends use next-hop-based tunnels. 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.

        Oracle IPSec ProxyIDs

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

        https://docs.cloud.oracle.com/iaas/Content/Network/Reference/genericCPE.htm

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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

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                        • 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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