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    Netgate SG-3100 LAN ports cannot go through LAN Gateway.

    Scheduled Pinned Locked Moved General pfSense Questions
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    • M
      mmajian @johnpoz
      last edited by

      @johnpoz Sorry, the wifi access point with IP address 192.168.30.14. My IP settings are: LAN 192.168.1.1/24, WAN static IP from IPS, Wirelessnetwork 192.168.30.1/24,
      OpenVPN 192.168.70.1/24

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      • johnpozJ
        johnpoz LAYER 8 Global Moderator
        last edited by

        Ok great - now lets see you validate that your clients are seeing the correct mac for pfsense lan interface.. You show pfsense log handing them IP address?

        Lets see your switch config in your pfsense, and lets see your interface assignments.

        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 2.7.2, 24.11

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        • M
          mmajian @johnpoz
          last edited by

          @johnpoz Only one Win10 computer connect to LAN1 prot. It received correct IP address as 192.168.1.100. But it can't ping to 192.168.1.1
          And I can see the correct IP, MAC and computer name in pfSense DHCP leases, but the online status is offline.

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          • M
            mmajian @johnpoz
            last edited by

            @johnpoz The switch is LAN1 active with default config. The interface assignments are
            c90df78c-d680-448d-b849-d7f50722c618-image.png

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            • kiokomanK
              kiokoman LAYER 8
              last edited by

              maybe some antivirus/firewall on that windows 10 machine that can block it?
              is the network set as public instead of private ?

              ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
              Please do not use chat/PM to ask for help
              we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
              Don't forget to Upvote with the 👍 button for any post you find to be helpful.

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              • johnpozJ
                johnpoz LAYER 8 Global Moderator
                last edited by johnpoz

                @mmajian said in Netgate SG-3100 LAN ports cannot go through LAN Gateway.:

                but the online status is offline.

                That means it can not get dns..

                Well if you can see the correct mac and get an IP - then yeah I would think something wrong on the machine itself if plugged directly into the 3100 switch ports, and nothing else connected. Simple enough to sniff on pfsense - while your pinging, so you see the pings or not?

                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 2.7.2, 24.11

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                • M
                  mmajian @johnpoz
                  last edited by

                  @johnpoz I disabled all firewalls in Win10 computer and still can't ping. And no I can't see any pings or traffics from win10 computer to pfSense in firewall logs.

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                  • stephenw10S
                    stephenw10 Netgate Administrator
                    last edited by

                    Hmm, curious. Are the switch settings in the SG-3100 still at their defaults?

                    Can you ping out from pfSense to the Windows host on LAN?

                    Steve

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                    • M
                      mmajian @stephenw10
                      last edited by

                      @stephenw10 Yes, the switch settings for SG-3100 are their defaults. And no I can't ping Windows host from pfSense (connection timed out.)

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                      • stephenw10S
                        stephenw10 Netgate Administrator
                        last edited by

                        Hmm, sure behaves like a subnet conflict, like there is something else there responding as 192.168.1.1. If that was the case I would expect to see a load of errors in the system log though.

                        Try running a packet capture on the LAN from Diag > Packet capture whilst pinging from the Windows host. Do you see the pings arriving?

                        Steve

                        M 2 Replies Last reply Reply Quote 0
                        • M
                          mmajian @stephenw10
                          last edited by

                          @stephenw10 I also did try to change IP address for LAN to 192.168.10.1. And Windows computer get correct IP from DHCP 192.168.10.100. But still can't ping LAN.
                          I will try to run packet capture on Monday and see what will happen. Thank you so much.

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                          • M
                            mmajian
                            last edited by

                            I also found a very strange thing that when I connect Win10 computer to WirelessNetwork port, it gets correct IP address and gateway
                            af8b64b5-7cac-4795-a129-a34377eee2c1-image.png
                            But it also can ping LAN 192.168.1.1
                            86bf2a30-449f-4f13-ab04-782463ae1bb3-image.png
                            Even I have this rule in WirelessNetwork
                            481dfcf1-cc5a-4413-ad3d-657b67e898e0-image.png
                            Also when I tried to get route from 192.168.30.52 to 192.168.1.1 in Win10 computer
                            290bbb19-b302-46d7-bcef-00fd9f073cc0-image.png
                            It seems like it access 192.168.1.1 directly not through it's gateway 192.168.30.1
                            Can anyone help to explain these weird phenomenon? Maybe by fixing this will fix the LAN ports can't reach LAN gateway problem. Thanks.

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                            • DerelictD
                              Derelict LAYER 8 Netgate
                              last edited by

                              Not necessarily.

                              192.168.1.1 is still only one hop away since that address exists on the same hop you reach at 192.168.30.1. It is free to respond to a traceroute using that address.

                              Chattanooga, Tennessee, USA
                              A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                              DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                              Do Not Chat For Help! NO_WAN_EGRESS(TM)

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                              • M
                                mmajian @Derelict
                                last edited by

                                @Derelict Thank you very much for trace-route. But why can I ping 192.168.1.1 from WirelessNetwork. I think anything from WirelessNetwork net to LAN net should be blocked by default.

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                                • DerelictD
                                  Derelict LAYER 8 Netgate
                                  last edited by

                                  Well, if you want to BLOCK traffic on from Wireless network to LAN net then BLOCK it. Don't block traffic with a pass rule.

                                  Add a rule above what you have that blocks traffic to destination LAN net above what you have and see if the behavior changes.

                                  Chattanooga, Tennessee, USA
                                  A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                  DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                  Do Not Chat For Help! NO_WAN_EGRESS(TM)

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

                                    @Derelict Great, thank you. I created a BLOCK rule and it's working.
                                    Now I am backing LAN ports can't reach LAN gateway problem. Looks like fixing problems with WirelessNetwork doesn't fix LAN net. 😞

                                    DerelictD 1 Reply Last reply Reply Quote 0
                                    • M
                                      mmajian @stephenw10
                                      last edited by

                                      @stephenw10 I connect one of the Win10 computer to LAN1 port and Switch setting is here:

                                      aec0ce2b-b734-4276-af03-1f1a2eff37a4-image.png

                                      It's getting correct IP address from LAN DHCP 192.168.1.115, but is't offline
                                      2bcf2e02-11c1-40a7-888b-dbdf8aab579a-image.png

                                      I started Packet capture on LAN interface for IPv4 only.
                                      13107108-2369-4f78-a4be-7c3e519c7064-image.png
                                      Looks like LAN can receive from Win10 computer but never reply.

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                                      • johnpozJ
                                        johnpoz LAYER 8 Global Moderator
                                        last edited by

                                        Ok that is good info, now lets see your actual switch config.

                                        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 2.7.2, 24.11

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

                                          @johnpoz Sorry I am new to pfSense. What is actual switch config and how to view it? Thanks.

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                                          • DerelictD
                                            Derelict LAYER 8 Netgate @mmajian
                                            last edited by

                                            @mmajian said in Netgate SG-3100 LAN ports cannot go through LAN Gateway.:

                                            @Derelict Great, thank you. I created a BLOCK rule and it's working.
                                            Now I am backing LAN ports can't reach LAN gateway problem. Looks like fixing problems with WirelessNetwork doesn't fix LAN net. 😞

                                            Yet another victim.

                                            Someday people will listen.

                                            Chattanooga, Tennessee, USA
                                            A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                            DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                            Do Not Chat For Help! NO_WAN_EGRESS(TM)

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