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    LAN client cannot connect

    Scheduled Pinned Locked Moved General pfSense Questions
    101 Posts 2 Posters 13.5k Views
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    • stephenw10S
      stephenw10 Netgate Administrator
      last edited by

      Ok great try to ping google.com from pfSense.

      If that succeeds try to ping google.com from a client on the LAN.

      S 1 Reply Last reply Reply Quote 0
      • S
        Spectrum @stephenw10
        last edited by

        @stephenw10 pfsense shell google.com 3 packets transmitted, 3 packets received, 0% packet loss

        web gui diag/ ping
        8.8.8.8 3 packets transmitted, 3 packets received, 0% packet loss (lan)
        1.1.1.1 3 packets transmitted, 3 packets received, 0% packet loss (lan)
        google.com 3 packets transmitted, 3 packets received, 0% packet loss (lan)
        wikipedia.org 3 packets transmitted, 3 packets received, 0% packet loss (lan)
        wikipedia.org 3 packets transmitted, 3 packets received, 0% packet loss (wan)

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        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          Ok try that same test from a client on the LAN.

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          • S
            Spectrum @stephenw10
            last edited by

            @stephenw10 how

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            • stephenw10S
              stephenw10 Netgate Administrator
              last edited by

              Just run some pings from a client on the LAN.

              The client cannot open web pages but pfSense clearly can reach external sites and can resolve DNS.
              So either the client is being blocked (the default firewall rules should pass it though) or it cannot resolve.
              Testing with ping should show that.

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              • S
                Spectrum @stephenw10
                last edited by Spectrum

                @stephenw10 Diag/Ping
                Ping
                Host name wikipedia.org
                IP protocol
                IPv4
                Source address
                LAN
                --- ping statistics from wikipedia.org ---
                10 packets transmitted, 10 packets received, 0.0% packet loss

                Ping
                Host name giallozafferano.it
                IP protocol
                IPv4
                Source address
                LAN
                --- ping statistics from giallozafferano.it ---
                10 packets transmitted, 0 packets received, 100% packet loss

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                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by

                  Try pinging from a client not from pfSense.

                  That second address doesn't appear to respond to ping so that's not a problem:

                  steve@steve-NUC9i9QNX:~$ ping giallozafferano.it
                  PING giallozafferano.it (52.17.217.40) 56(84) bytes of data.
                  ^C
                  --- giallozafferano.it ping statistics ---
                  3 packets transmitted, 0 received, 100% packet loss, time 2037ms
                  
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                  • S
                    Spectrum @stephenw10
                    last edited by

                    @stephenw10 ok, cmd windows.

                    ping 8.8.8.8
                    --- ping statistics from 8.8.8.8 ---
                    4 packets transmitted, 4 packets received, 0.0% packet loss

                    ping 1.1.1.1
                    --- ping statistics from 1.1.1.1 ---
                    4 packets transmitted, 4 packets received, 0.0% packet loss

                    ping google.com
                    --- ping statistics from 216.58.204.142 ---
                    4 packets transmitted, 4 packets received, 0.0% packet loss

                    ping wikipedia.org
                    unable to find host "wikipedia.org". check correct name and try again

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                    • stephenw10S
                      stephenw10 Netgate Administrator
                      last edited by

                      Hmm, well pfSense can resolve wikipedia.org but the client cannot. Is it configured to use pfSense for DNS?

                      By default pfSense will pass it;s own interface address to use for DNS via DHCP

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                      • S
                        Spectrum @stephenw10
                        last edited by

                        @stephenw10 I didn't touch anything, I just did as you described. if you can kindly tell me where should I look for this dns thing?

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                        • stephenw10S
                          stephenw10 Netgate Administrator
                          last edited by

                          Depends what the client is. Is it configured for DHCP?

                          If it is t should pull the DNS info from pfSense with the DHCP lease.

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                          • S
                            Spectrum @stephenw10
                            last edited by

                            @stephenw10 how can I look at this information?? both to see if it is configured for DHCP?? and in case it is not configured ("If not, you need to pull DNS information from pfSense with DHCP lease")??

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                            • stephenw10S
                              stephenw10 Netgate Administrator
                              last edited by

                              Just about all clients will connect using dhcp by default and use the DNS information passed that way. But that can be configured manually by the user. You need to check that in Windows to be sure.

                              You can check Status > DHCP Leases in pfSense to see if your client pulled a lease.

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                              • S
                                Spectrum @stephenw10
                                last edited by

                                @stephenw10 Status/ DHCPv6 Leases nothing here

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                                • stephenw10S
                                  stephenw10 Netgate Administrator
                                  last edited by

                                  Not v6. Just the v4 leases in Status > DHCP Leases.

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                                  • S
                                    Spectrum @stephenw10
                                    last edited by

                                    @stephenw10 i have only status / DHCPv6

                                    maybe is writing status / release DHCP??

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                                    • stephenw10S
                                      stephenw10 Netgate Administrator
                                      last edited by

                                      Ok maybe you disabled IPv4 DHCP when you change the LAN IP.

                                      Go to Services > DHCP Server > LAN and make sure it's enabled.

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                                      • S
                                        Spectrum @stephenw10
                                        last edited by

                                        @stephenw10
                                        Services > DHCP Server > LAN
                                        Enable - Enable DHCP server on the LAN interface (yes)
                                        Is this feature already enabled or is it something else I need to look at?

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                                        • stephenw10S
                                          stephenw10 Netgate Administrator
                                          last edited by

                                          Yes it should be enabled by default. Check Status > Services.

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                                          • S
                                            Spectrum @stephenw10
                                            last edited by

                                            @stephenw10 status/service
                                            service
                                            dhcpd service DHCP
                                            dpinger Demon Monitoring Gateway
                                            ntpd NTP Time Synchronization
                                            syslogd System registry daemon
                                            unbound DNS Resolver

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