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    Yes, I know! Another OPT1 and OPT2 no internet connection!

    Scheduled Pinned Locked Moved General pfSense Questions
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    • johnpozJ
      johnpoz LAYER 8 Global Moderator @MidGe48
      last edited by johnpoz

      @MidGe48 said in Yes, I know! Another OPT1 and OPT2 no internet connection!:

      but disable (red cross) on the gui.

      What would your client dhcp setting have to do with an interface not coming up? Make no sense.. If you connect something to that interface it should come up.. Regardless what dhcp or bootp or whatever protocol you might want to be using for dhcp, maybe the client is static.. None of that has anything to do with the interface coming up on your router.

      Maybe just the bounce on the client interface is what brought up the interface on the router, that would make more sense then what you set its dhcp client to do.

      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

      1 Reply Last reply Reply Quote 0
      • M
        MidGe48 @MidGe48
        last edited by

        @MidGe48

        Since that last message and restoring a two month old backup, the interface comes up on the router as per my previous post.

        Still have problems with the clients not being to connect unless I change the connection type on the client. This is possible on my Linux machines but a lot of IOT devices I use do not have that facility and do not connect readily, or connect but get no internet (DNS issue, I guess).

        Note that all of this started happening after a complete new install of pfSense, following a crash whilst moving to the new Kea DHCP as suggested on the GUI.

        It has now taken me three days in trying to resolve this issue. Three days, given my age, likely to be a too big proportion of the rest of my live. It may be alright for most, or youger ones, but its too long for me. I came to pfSense a number of years ago after experiencing too many crashes with Opnsense. I think I may have to start looking at another alternative.

        GertjanG M 2 Replies Last reply Reply Quote 0
        • GertjanG
          Gertjan @MidGe48
          last edited by

          @MidGe48 said in Yes, I know! Another OPT1 and OPT2 no internet connection!:

          (DNS issue, I guess)

          Don't guess. Be sure ;) Some tests :

          When you start pfSense, the console shows a lot of useful info.
          Like these :

          ....
          igc0: <Intel(R) Ethernet Controller I225-V> mem 0x81300000-0x813fffff,0x81400000-0x81403fff at device 0.0 on pci4
          ...
          igc1: <Intel(R) Ethernet Controller I225-V> mem 0x81100000-0x811fffff,0x81200000-0x81203fff at device 0.0 on pci5
          ...
          igc2: <Intel(R) Ethernet Controller I225-V> mem 0x81100000-0x811fffff,0x81200000-0x81203fff at device 0.0 on pci5
          ....
          

          etc.
          I have the "igc" family of network cards, yours might be different. Like 'em'. These lines mean : the kernel found the hardware.

          These found interfaces have to be assigned in the GUI :

          46b45dbb-0591-4594-83c1-23076748c383-image.png

          When booted into pfSense, go console, or SSH - option 8 :

          Check what processes are using (listening) on port 67 (DHCP):

          [23.09-RELEASE][root@pfSense.bhf.tld]/root: sockstat -4l | grep ':67'
          root     kea-dhcp4  23282 19  udp4   192.168.1.1:67        *:*
          root     kea-dhcp4  23282 21  udp4   192.168.2.1:67        *:*
          root     kea-dhcp4  23282 23  udp4   192.168.100.1:67      *:*
          

          As I have 3 LANs on pfSense, 192.168.1.1/24, 192.168.2.1/24 and 192.168.100.1/24, and these 3 LANs are being set up on my pfSense using "DHCP-server" - or, actually KEA (same thing for me) I know on the pfSense side all is ok.

          The same test can be done for the resolver (unbound) (note that I'm testing for IPv4 and IPv6 now :

          [23.09-RELEASE][root@pfSense.bhf.tld]/root: sockstat -l | grep ':53'
          unbound  unbound    63341 3   udp6   *:53                  *:*
          unbound  unbound    63341 4   tcp6   *:53                  *:*
          unbound  unbound    63341 5   udp4   *:53                  *:*
          unbound  unbound    63341 6   tcp4   *:53                  *:*
          
          

          which means : for all interfaces (yep, even WAN), for both IPv4 and IPv6, both TCP and UDP ( ! ) unbound listens on port '53'.

          If DNS traffic doesn't reach unbound on pfSEnse now, then this can be only one reason : a firewall rule on the interface blocks TCP or UDP port 53 traffic - that this interface.

          I presume you don't use smart-switches or something like that.

          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 1
          • M
            MidGe48
            last edited by

            Hello Gertjan,

            OK, I did what you suggested.

            1. On the GUI i have all the interface assignment showing with the correct (I hope) network port.

            2. There are NO processes using or listening on port 67

            3. The resolver (unbound) shows me a single process for tcp4 and udp4. I have disable ipv6 everywhere so I suppose this is correct.

            The issue now, is with having no processes listening on port 67! But, now that I have reverted to a backup of two months ago when everything was dandy, I am not using Kea at the moment.

            I am using unmanaged switches, so that should not be an issue.

            Thanking you very much for trying to help me.

            1 Reply Last reply Reply Quote 0
            • M
              MidGe48 @MidGe48
              last edited by

              @MidGe48

              My boot log shows the ports working as well, I presume:

              igb3: netmap queues/slots: TX 4/1024, RX 4/1024
              igb3: Ethernet address: 00:e0:67:21:65:5f
              igb3: Using MSI-X interrupts with 5 vectors
              igb3: Using 4 RX queues 4 TX queues
              igb3: Using 1024 TX descriptors and 1024 RX descriptors
              igb3: NVM V0.6 imgtype6
              igb3: <Intel(R) I210 Flashless (Copper)> port 0xb000-0xb01f mem 0xb1200000-0xb121ffff,0xb1220000-0xb1223fff irq 19 at device 0.0 on pci4
              pci4: <ACPI PCI bus> on pcib4
              pcib4: <ACPI PCI-PCI bridge> irq 19 at device 28.3 on pci0
              igb2: netmap queues/slots: TX 4/1024, RX 4/1024
              igb2: Ethernet address: 00:e0:67:21:65:5e
              igb2: Using MSI-X interrupts with 5 vectors
              igb2: Using 4 RX queues 4 TX queues
              igb2: Using 1024 TX descriptors and 1024 RX descriptors
              igb2: NVM V0.6 imgtype6
              igb2: <Intel(R) I210 Flashless (Copper)> port 0xc000-0xc01f mem 0xb1300000-0xb131ffff,0xb1320000-0xb1323fff irq 18 at device 0.0 on pci3
              pci3: <ACPI PCI bus> on pcib3
              pcib3: <ACPI PCI-PCI bridge> irq 18 at device 28.2 on pci0
              igb1: netmap queues/slots: TX 4/1024, RX 4/1024
              igb1: Ethernet address: 00:e0:67:21:65:5d
              igb1: Using MSI-X interrupts with 5 vectors
              igb1: Using 4 RX queues 4 TX queues
              igb1: Using 1024 TX descriptors and 1024 RX descriptors
              igb1: NVM V0.6 imgtype6
              igb1: <Intel(R) I210 Flashless (Copper)> port 0xd000-0xd01f mem 0xb1400000-0xb141ffff,0xb1420000-0xb1423fff irq 17 at device 0.0 on pci2
              pci2: <ACPI PCI bus> on pcib2
              pcib2: <ACPI PCI-PCI bridge> irq 17 at device 28.1 on pci0
              igb0: netmap queues/slots: TX 4/1024, RX 4/1024
              igb0: Ethernet address: 00:e0:67:21:65:5c
              igb0: Using MSI-X interrupts with 5 vectors
              igb0: Using 4 RX queues 4 TX queues
              igb0: Using 1024 TX descriptors and 1024 RX descriptors
              igb0: NVM V0.6 imgtype6
              igb0: <Intel(R) I210 Flashless (Copper)> port 0xe000-0xe01f mem 0xb1500000-0xb151ffff,0xb1520000-0xb1523fff irq 16 at device 0.0 on pci1
              pci1: <ACPI PCI bus> on pcib1
              pcib1: <ACPI PCI-PCI bridge> irq 16 at device 28.0 on pci0

              GertjanG 1 Reply Last reply Reply Quote 0
              • GertjanG
                Gertjan @MidGe48
                last edited by

                @MidGe48

                Good news : your device has supported network hardware.
                Not really a surprise, as it worked before.

                Btw : you are using the pfSense CE 2.7.1, right ?

                What did the sockstat test show ?

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

                M 1 Reply Last reply Reply Quote 0
                • M
                  MidGe48 @Gertjan
                  last edited by

                  @Gertjan

                  Yes, using pfSense CE 2.7.1

                  On the GUI i have all the interface assignment showing with the correct (I hope) network port.

                  There are NO processes using or listening on port 67

                  The resolver (unbound) shows me a single process for tcp4 and udp4. I have disable ipv6 everywhere so I suppose this is correct.

                  GertjanG 1 Reply Last reply Reply Quote 0
                  • GertjanG
                    Gertjan @MidGe48
                    last edited by Gertjan

                    @MidGe48 said in Yes, I know! Another OPT1 and OPT2 no internet connection!:

                    There are NO processes using or listening on port 67

                    that means : no DHCP server is serving 'DCP leases'.
                    Check the system log and dhcp log page ( Status > System Logs> DHCP ), and see what happened.

                    Yo said ; "Another OPT1 and OPT2 no internet connection!" so I dedecut that LAN is ok.
                    But without a DHCP server running on LAN, you should also have DHCP issues on your LAN interface.
                    Except if you have shut down the DHCP server on your LAN .....

                    If there is no DHCP servers running on a LAN, or OPT or OPT2, etc then it's normal that DHCP clients, your devices, ,don't get any DHCP lease => NO IP, no gatway, no DNS, so no connection what so ever.

                    Btw : If you were using dhcpd-isc (not KEA) ;

                    [23.09-RELEASE][root@pfSense.bhf.tld]/root: sockstat -4l | grep 'dhcpd'
                    dhcpd    dhcpd      76530 13  udp4   *:67                  *:*
                    

                    which means that there is one process listing to 'all' interfaces.
                    Using UDPv4 of course, on port 67.

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

                    M 2 Replies Last reply Reply Quote 0
                    • M
                      MidGe48 @Gertjan
                      last edited by

                      @Gertjan

                      [2.7.1-RELEASE][admin@trakka.midge.home.arpa]/root: sockstat -4l | grep 'dhcpd'
                      dhcpd dhcpd 32156 13 udp4 *:48463

                      So, no TCP?!

                      Unfortunately I cannot bring my network down now. There are important, to me, processes running, and the router is my perimeter firewall and router.. I will restart the router and pull the logs of boot, system general, firewall and dhcp a few minutes after a reboot. That will be in about 12 -13 hours from now.

                      The log are so long now and I can't quite remember at which times I made what changes. The only thing I can say is that they look normal.

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

                        DHCP is a UDP protocol, it shouldn't be listening for TCP.

                        But why yours is not listening on port 67 is very odd.

                        You shouldn't need to change the dhcp client settings on the hosts and in fact setting it to 'address only' is probably going to break stuff as they won't be passed dns or time servers etc.

                        Do you see leases in Status > DHCP Leases? Perhaps you have a rogue DHCP server somewhere else.

                        @MidGe48 said in Yes, I know! Another OPT1 and OPT2 no internet connection!:

                        the correct (I hope) network port

                        You need to know they are the correct ports because they may be the cause of all the problems here. Check with ifconfig as you connect or disconnect links.

                        Steve

                        1 Reply Last reply Reply Quote 0
                        • GertjanG
                          Gertjan @MidGe48
                          last edited by

                          @MidGe48 said in Yes, I know! Another OPT1 and OPT2 no internet connection!:

                          dhcpd dhcpd 32156 13 udp4 *:48463

                          As above : this explains everything.

                          A dhcpd server has to listen on port '67' - UDP.
                          Bacause DHCP clients will use that port '67' as their destination.

                          Why your dhcpd uses port 48463 is .... never seen that before.

                          I've checked my dhcpd config file ( here /var/dhcpd/etc/dhcpd.conf ) and 'use port 67' command isn't even an option or mentioned, it the the de facto standard.
                          Looking at the GUI => Services > DHCP Server > LAN page, I couldn't even find a settings that permits me to change that.

                          If dhcpd elected to use another port, like your 48463, it should at least mention this its log file.
                          Just restart it, and look the the DHCP logs
                          Don't worry to break your networks, they are already pretty 'down' any way.

                          DHCP functionality is of course non mandatory, I can image that if you set up all network devices with a static IP, static gateway, and static DNS, and the network (/24) used, you don't any DHCP server to work.

                          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

                            Indeed I've never seen that before. Speculation but perhaps it uses a random port if 67 is in use? Maybe Kea was somehow still running?
                            I've switched back and forth between ISC and Kea many times and never managed to trigger anything like that but....

                            I would restart the dhcpd service. Failing that reboot.

                            Steve

                            1 Reply Last reply Reply Quote 0
                            • jimpJ jimp moved this topic from Problems Installing or Upgrading pfSense Software on
                            • M
                              MidGe48 @Gertjan
                              last edited by

                              @Gertjan @stephenw10

                              OK, I re-installed 4 times from the downloaded image.

                              I finally found out about one problem and got that fixed on the last and current install.

                              sockstat -l | grep ':53'

                              unbound unbound 4119 3 udp6 *:53 :
                              unbound unbound 4119 4 tcp6 *:53 :
                              unbound unbound 4119 5 udp4 *:53 :
                              unbound unbound 4119 6 tcp4 *:53 :

                              sockstat -4l | grep ':67'

                              root kea-dhcp4 7840 19 udp4 10.10.10.1:67 :
                              root kea-dhcp4 7840 21 udp4 10.88.88.1:67 :
                              root kea-dhcp4 7840 23 udp4 10.44.44.1:67 :

                              But, whereas everything works fine on LAN, OPT1 and OPT2 are still giving me some problems.

                              They both serve me via DHCP, the same subnet when they are different in the settings.

                              johnpozJ GertjanG stephenw10S 3 Replies Last reply Reply Quote 0
                              • johnpozJ
                                johnpoz LAYER 8 Global Moderator @MidGe48
                                last edited by johnpoz

                                @MidGe48 said in Yes, I know! Another OPT1 and OPT2 no internet connection!:

                                They both serve me via DHCP, the same subnet when they are different in the settings.

                                You don't have your networks actually isolated then..

                                You can't just plug into the same dumb switch.

                                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

                                M 1 Reply Last reply Reply Quote 0
                                • M
                                  MidGe48 @johnpoz
                                  last edited by

                                  @johnpoz

                                  It is not a switch it is a pfSense router with different physical ports assigned to different interfaces, different DHCP servers and different subnets. So where in pfSense do I see/change the isolation??

                                  johnpozJ 1 Reply Last reply Reply Quote 0
                                  • johnpozJ
                                    johnpoz LAYER 8 Global Moderator @MidGe48
                                    last edited by

                                    @MidGe48 what do you have plugged into pfsense interfaces? Your saying you have a single device plugged into Opt1 and it gets an IP from dhcp on a lan or opt2 network?

                                    What plugs into pfsense interfaces where you setup these networks and are running dhcp.. You can not just plug in lan, opt and opt2 into the same dumb switch.. And then plug a PC into one of the other ports.

                                    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

                                    M 1 Reply Last reply Reply Quote 0
                                    • M
                                      MidGe48 @johnpoz
                                      last edited by

                                      @johnpoz

                                      I am well aware of what you say.

                                      I have a relatively complex topology for my whole network including 3 routers and 4 switches. But what plugs in the ports of my perimeter router (pfsense) are physical networks totally isolated from each other. I don't know where you got the idea that I was converging things via a dumb switch.

                                      Anyway, I am done for now, here.

                                      I have other tasks awaiting and will use a workaround for the time being.

                                      Thanks all.

                                      johnpozJ 1 Reply Last reply Reply Quote 0
                                      • johnpozJ
                                        johnpoz LAYER 8 Global Moderator @MidGe48
                                        last edited by johnpoz

                                        @MidGe48 said in Yes, I know! Another OPT1 and OPT2 no internet connection!:

                                        totally isolated from each other. I

                                        Clearly they are not - because there is NO possible way for you to get a dhcp address from some other network that is on different layer 2 network.

                                        Or your network is so complex you don't know what is plugged into where, and what you think is connected to opt1 is connected to lan or opt2 or whatever network you device is suppose to get dhcp from opt1 is on

                                        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

                                        1 Reply Last reply Reply Quote 1
                                        • GertjanG
                                          Gertjan @MidGe48
                                          last edited by

                                          @MidGe48 said in Yes, I know! Another OPT1 and OPT2 no internet connection!:

                                          root kea-dhcp4 7840 19 udp4 10.10.10.1:67 :
                                          root kea-dhcp4 7840 21 udp4 10.88.88.1:67 :
                                          root kea-dhcp4 7840 23 udp4 10.44.44.1:67 :

                                          Looking far better.
                                          One suggestion : stay away from 10.10.10.1/24, as that one is by default used by pfBlockerng.

                                          About these networks, they are set up with a /24 each, right ?
                                          Like : my OPT1 called PORTAL :

                                          09ad6826-8dcc-4014-a8c9-e26e3a9615ef-image.png

                                          and dhcp :
                                          c99a52aa-08a2-4bf4-a95a-c1bf1b3cef89-image.png

                                          When I check my DHCP logs, I can see :

                                          ca21bcef-173f-4d1e-8b5d-d7389ba4095a-image.png

                                          So, on the igc0 (my LAN) (network 192.168.1.1/24) and the 192.168.1.31 is served.
                                          on the igc1 (my OPT1) (network 192.168.2.1/24) and the 192.168.2.6 is served.

                                          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 2
                                          • stephenw10S
                                            stephenw10 Netgate Administrator @MidGe48
                                            last edited by

                                            @MidGe48 said in Yes, I know! Another OPT1 and OPT2 no internet connection!:

                                            I finally found out about one problem and got that fixed on the last and current install.

                                            What was the problem? I'd love to know what could possible cause dhcpd to listen on a different port like that.

                                            Steve

                                            johnpozJ 1 Reply Last reply Reply Quote 1
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