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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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    • kiokomanK
      kiokoman LAYER 8
      last edited by

      ok, if you didn't set any wrong gateway on the dhcp server,
      now give more info to johnpoz

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      • M
        mmajian @johnpoz
        last edited by

        @johnpoz Thank you. I can access to firewall from OPT1 port (the WirelessNetwork) interface. I disabled firewall rules for WirelessNetwork interface.

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        • johnpozJ
          johnpoz LAYER 8 Global Moderator
          last edited by johnpoz

          Well if your getting dhcp - from pfsense? Or you got some other device on your network with 192.168.1.1 handing out dhcp?? On your clients that are on 192.168.1.1 validate the mac of what your seeing for 192.168.1/24 that its pfsense mac 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
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          SG-4860 24.11 | Lab VMs 2.8, 24.11

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            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 2.8, 24.11

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                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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                  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 ?

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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
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                        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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                            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

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                                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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                                  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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                                      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)

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                                        • 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
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                                            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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