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    Remove LAN interface

    Scheduled Pinned Locked Moved General pfSense Questions
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    • ?
      A Former User
      last edited by

      It was locked to the laptop MAC. I spoofed the interface with the MAC and it obtained an IP.

      Connection doesn't seem stable though. I can't route traffic out the new WAN gateway. Also, the interface bounces between up and down frequently.

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      • johnpozJ
        johnpoz LAYER 8 Global Moderator
        last edited by

        Have you actually validated with your ISP that you should get and be able to use a 2nd IPv4 address on this interface.. I find it highly unlikely that ISPs would just let users have a 2nd IP without the user paying for it at min.

        Are you paying for more than 1 IPv4 address?

        An intelligent man is sometimes forced to be drunk to spend time with his fools
        If you get confused: Listen to the Music Play
        Please don't Chat/PM me for help, unless mod related
        SG-4860 24.11 | Lab VMs 2.8, 24.11

        JKnottJ 1 Reply Last reply Reply Quote 0
        • ?
          A Former User
          last edited by

          I called a few times and each person had a different answer. First it was only one IP address per modem, then it was we don't offer the service of adding a second IP anymore, finally it was we don't lock ports on customer provided modems. That's when I tried with a laptop.

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          • JKnottJ
            JKnott @johnpoz
            last edited by

            @johnpoz said in Remove LAN interface:

            Have you actually validated with your ISP that you should get and be able to use a 2nd IPv4 address on this interface.. I find it highly unlikely that ISPs would just let users have a 2nd IP without the user paying for it at min.

            I read about it on a my ISP's user forum, which is moderated by some employees. I am not paying extra for the 2nd address.

            PfSense running on Qotom mini PC
            i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
            UniFi AC-Lite access point

            I haven't lost my mind. It's around here...somewhere...

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            • johnpozJ
              johnpoz LAYER 8 Global Moderator
              last edited by johnpoz

              And are you on the same ISP as the OP?

              That your ISP doesn't charge for extra IPs is nice for you - they are leaving money on the table ;) More then likely they don't even know its happening and have just not locked it down yet ;)

              Are you on a business line, that an ISP would hand out multiiple IPv4 in this day and age of shortages seems like really bad business practice if you ask me.

              That 2nd IP could be used to support another customer, or at min get more money from you per month.. If they just have IPs sitting there unused... But to hand them out for free, they should prob fire their business model guy ;)

              An intelligent man is sometimes forced to be drunk to spend time with his fools
              If you get confused: Listen to the Music Play
              Please don't Chat/PM me for help, unless mod related
              SG-4860 24.11 | Lab VMs 2.8, 24.11

              JKnottJ ? 3 Replies Last reply Reply Quote 0
              • JKnottJ
                JKnott @johnpoz
                last edited by JKnott

                @johnpoz said in Remove LAN interface:

                Are you on a business line

                No, just a plain residential account. However, I generally don't use the 2nd address, other than for occasional testing.

                PfSense running on Qotom mini PC
                i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                UniFi AC-Lite access point

                I haven't lost my mind. It's around here...somewhere...

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                • ?
                  A Former User @johnpoz
                  last edited by

                  @johnpoz

                  My ISP used to offer the service of a 2nd IP but now they don't. Yet they don't lock down customer modems with multiple ports.

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                  • JKnottJ
                    JKnott @johnpoz
                    last edited by

                    @johnpoz said in Remove LAN interface:

                    And are you on the same ISP as the OP?

                    Probably not.

                    PfSense running on Qotom mini PC
                    i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                    UniFi AC-Lite access point

                    I haven't lost my mind. It's around here...somewhere...

                    1 Reply Last reply Reply Quote 0
                    • ?
                      A Former User
                      last edited by

                      So I tried removing the spoofed Mac and turned the modem off for a few minutes. Second wan connection received an IP but the first did not.

                      Also, when I purchased my modem I had to give the MAC address to them. Since the modem only has one MAC I think that's where they are limited although I could be wrong.

                      JKnottJ 1 Reply Last reply Reply Quote 0
                      • JKnottJ
                        JKnott @A Former User
                        last edited by

                        @angdigi said in Remove LAN interface:

                        Also, when I purchased my modem I had to give the MAC address to them. Since the modem only has one MAC I think that's where they are limited although I could be wrong.

                        The modem MAC address is used only for communication with or through the modem, not what's beyond.

                        PfSense running on Qotom mini PC
                        i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                        UniFi AC-Lite access point

                        I haven't lost my mind. It's around here...somewhere...

                        ? 1 Reply Last reply Reply Quote 0
                        • ?
                          A Former User @JKnott
                          last edited by

                          @JKnott

                          Interesting. Do you know of any tips/tricks to keep the interface up instead of bouncing up and down?

                          JKnottJ GertjanG 2 Replies Last reply Reply Quote 0
                          • JKnottJ
                            JKnott @A Former User
                            last edited by

                            @angdigi

                            Not really, as I've never experienced that problem. My service is rock solid.

                            PfSense running on Qotom mini PC
                            i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                            UniFi AC-Lite access point

                            I haven't lost my mind. It's around here...somewhere...

                            1 Reply Last reply Reply Quote 0
                            • ?
                              A Former User
                              last edited by

                              Isn't this considered "flapping". Maybe it's something on the NIC that's causing the issue and not the ISP....

                              NogBadTheBadN 1 Reply Last reply Reply Quote 0
                              • GertjanG
                                Gertjan @A Former User
                                last edited by

                                @angdigi said in Remove LAN interface:

                                of any tips/tricks to keep the interface up instead of bouncing up and down?

                                Take a switch.
                                Put it between the modem and pfSense.
                                Now, observe where the flapping happens.
                                On the flapping side, check port parameters - or just change the materiel and/or NIC if possible.

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

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                                • NogBadTheBadN
                                  NogBadTheBad @A Former User
                                  last edited by NogBadTheBad

                                  @angdigi said in Remove LAN interface:

                                  Isn't this considered "flapping". Maybe it's something on the NIC that's causing the issue and not the ISP....

                                  Flapping is generally a term for when a mac address moves rapidly between different ports on a switch / switches.

                                  Andy

                                  1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

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