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    Tunnel GRE from linux server to pfsens

    Scheduled Pinned Locked Moved General pfSense Questions
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    • GertjanG
      Gertjan @Jsetive
      last edited by

      @Jsetive said in Tunnel GRE from linux server to pfsens:

      They have one guide

      If you have NAT rules on one side of your tunnel, remember to chose 'GRE' as the protocol as well.

      No "help me" PM's please. Use the forum, the community will thank you.
      Edit : and where are the logs ??

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      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        No you should not have a gateway on the VLAN201 interface directly.

        You will need a gateway but you should add it separately and it should be the VM internal private IP.

        You need to add a static route to 198.x.x.40 via that gateway.

        You should not have a VIP on pfSense. You need to add 198.x.x.40 on the VM dircetly so you can route to it.

        The policy route should work OK for outbound traffic.

        J 1 Reply Last reply Reply Quote 0
        • J
          Jsetive @stephenw10
          last edited by

          @stephenw10 said in Tunnel GRE from linux server to pfsens:

          You will need a gateway but you should add it separately and it should be the VM internal private IP.

          Im confuse, you mean, i need to create a "custom" range to this vlan (eg 172.16.201.x/24) and the gatewa on VM will be that?
          In vm i configure:
          IP 172.16.201.40
          Nmask /24
          GTW 172.16.201.254

          Then i create a static route to 198.x.x.40?

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          • stephenw10S
            stephenw10 Netgate Administrator
            last edited by

            Yes, that would work. The static route in pfSense would then be to 198.x.x.40 via 172.16.201.40.

            J 1 Reply Last reply Reply Quote 0
            • J
              Jsetive @stephenw10
              last edited by

              @stephenw10

              I know this is not the same issue, tell if i need to create other topic.
              I can't get DHCP from this VLAN, i CAN GET DHCP from VLAN.

              I've created VLAN 30 but still not getting ip:

              VLAN 30 (not working):

              d4054546-4257-42ee-8db6-1f8beee179c2-image.png

              VLAN 200 (working):

              1db6cdad-f893-4feb-b9e6-649995ca4e9b-image.png

              GertjanG 1 Reply Last reply Reply Quote 0
              • stephenw10S
                stephenw10 Netgate Administrator
                last edited by

                Did you enable DHCP on the new interface? Servcies > DHCP Server > VLAN30

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                • J
                  Jsetive @stephenw10
                  last edited by

                  @stephenw10

                  Yes it is enabled:

                  8b941bb2-71fa-4e7d-bf20-7fe54e5b24d2-image.png

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                  • GertjanG
                    Gertjan @Jsetive
                    last edited by

                    @Jsetive said in Tunnel GRE from linux server to pfsens:

                    VLAN 200 (working):

                    I've a small test for you 😊
                    On "VLAN 200", remove temporary all firewall rules. Empty the list.
                    Test your "VLAN 200" again : when you connect a device, it will get a DHCP lease !
                    When the DHCP server is activated, there will be 'hidden' firewall rules that accepts DHCP traffic.
                    Check the firewall rules for yourself : /var/rules.debug
                    Conclusion : the GUI firewall rules have no impact on the functioning of the DHCP server on that interface - afaik, the "the shoot in the foot" situation isn't possible. (although people tend to find out new ways to make live harder every day ^^)

                    About your "VLAN30" : use Diagnostics > Packet Capture, select the interface (VLAN30) and hit start.
                    Now, connect your device on that VLAN30.
                    The question is : does the packet capturing shows you the DHCP packets ?
                    I presume you know how to recognize them.

                    Another suggestion : switch from Kea to ISC and retry.

                    No "help me" PM's please. Use the forum, the community will thank you.
                    Edit : and where are the logs ??

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                    • stephenw10S
                      stephenw10 Netgate Administrator
                      last edited by

                      Then I would guess it's an issue with the VLAN tagging in whatever is connected to it. Probably a switch.

                      J 1 Reply Last reply Reply Quote 0
                      • J
                        Jsetive @stephenw10
                        last edited by

                        @stephenw10 @Gertjan
                        Thank you both for your reply.

                        Check the firewall rules for yourself : /var/rules.debug

                        This file doesn't exist in my machine in that path.

                        About your "VLAN30" : use Diagnostics > Packet Capture, select the interface (VLAN30) and hit start.

                        Theres no packet in capture, can't see nothing:
                        (Untagged):
                        7b158ed8-ad1d-4e4e-8f53-f9d8a784ebb9-image.png

                        (Tagged):
                        c4034e6d-61b3-4b7d-a2fd-3ce3dd5719eb-image.png

                        Another suggestion : switch from Kea to ISC and retry.

                        I didn't tested change because others VLANs is pooling ips. but i tested and didn't worked as well. When i change VLAN in vm it get instantly the ip, when i change to VLAN 30 i get 169.254.x.x

                        Then I would guess it's an issue with the VLAN tagging in whatever is connected to it. Probably a switch.

                        Well i can agree with that, but the config is the same in pf and in switch for all VLANs, and other VLANs getting the ip, here is the config in port:

                        376cf0ff-0146-475e-8548-2a46dac2a2b5-image.png

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                        • stephenw10S
                          stephenw10 Netgate Administrator
                          last edited by

                          So port 4 is connected to pfSense there? You have VLAN 30 untagged on some of the other ports? Where the clients are attached?

                          @Jsetive said in Tunnel GRE from linux server to pfsens:

                          Check the firewall rules for yourself : /var/rules.debug
                          

                          This file doesn't exist in my machine in that path.

                          That should be /tmp/rules.debug.

                          J 1 Reply Last reply Reply Quote 0
                          • J
                            Jsetive @stephenw10
                            last edited by

                            @stephenw10

                            So port 4 is connected to pfSense there?

                            Yes, Port 4 is connected physically to pfsense then in proxmox choose which vlan i want to use in VM.

                            You have VLAN 30 untagged on some of the other ports?

                            No, it is tagged

                            Where the clients are attached?

                            Pfsense lead all dhcp and manage VLANs then a connect to switch where i tag all vlan in port 4 where are used in proxmox.

                            That should be /tmp/rules.debug.

                            d4a0e503-7211-43e9-82e6-ccf1a76b3406-image.png

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                            • stephenw10S
                              stephenw10 Netgate Administrator
                              last edited by

                              Hmm, might need a diagram here! If Proxmox is also tagging/untagging the issue could be in the config there.

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