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    Remove LAN interface

    Scheduled Pinned Locked Moved General pfSense Questions
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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...

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              • ?
                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...

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                      • ?
                        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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