Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    Tunnel GRE from linux server to pfsens

    Scheduled Pinned Locked Moved General pfSense Questions
    37 Posts 3 Posters 2.4k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • 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?

        1 Reply Last reply Reply Quote 0
        • 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

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

                @stephenw10

                Yes it is enabled:

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

                1 Reply Last reply Reply Quote 0
                • 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 ??

                  1 Reply Last reply Reply Quote 0
                  • 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

                      1 Reply Last reply Reply Quote 0
                      • 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

                          1 Reply Last reply Reply Quote 0
                          • 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.

                            1 Reply Last reply Reply Quote 0
                            • First post
                              Last post
                            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.