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    New ISP issues

    Scheduled Pinned Locked Moved General pfSense Questions
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    • V
      viragomann @Seamus
      last edited by

      @seamus said in New ISP issues:

      A pfSense "DNS lookup" reports "host could not be resolved"

      Which host name?
      Try a lookup for dns.google or something common on pfSense.

      S 3 Replies Last reply Reply Quote 0
      • S
        Seamus @viragomann
        last edited by

        @viragomann
        Sorry, my last reply was mistaken. Thanks again for your time.

        pfSense LAN segment is 192.169.1.0/24. WAN is 10.3.3.0/24.

        On the PC (192.168.1.100) "nslookup" successfully shows 192.168.1.1 (pfSense LAN IP and DNS).
        On pfSense, DNS Lookup can't resolve 10.3.3.3, the ISP router internal IP.
        A pfSense DNS Lookup of dns.google.com gives
        Results:
        8.8.8.8 A
        8.8.4.4 A
        Timings:
        127.0.0.1 31ms
        10.3.3.3 5ms
        8.8.8.8 0ms

        S stephenw10S 2 Replies Last reply Reply Quote 0
        • S
          Seamus @Seamus
          last edited by

          @seamus said in New ISP issues:

          pfSense LAN segment is 192.169.1.0/24. WAN is 10.3.3.0/24.

          TYPO!
          192.168.1.0/24

          1 Reply Last reply Reply Quote 0
          • S
            Seamus @viragomann
            last edited by

            @viragomann
            Host 10.3.3.3

            1 Reply Last reply Reply Quote 0
            • S
              Seamus @viragomann
              last edited by

              @viragomann said in New ISP issues:

              Which host name?

              pfSense.home.arpa

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

                @seamus said in New ISP issues:

                On pfSense, DNS Lookup can't resolve 10.3.3.3

                Um... what are you expecting that to 'resolve' to? It's a private IP address. Or do you mean resolve from?

                Looks like it is responding in the lookup results for dns.google.com.

                What error does the client report if you try to ping google.com?

                Steve

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

                  @stephenw10 said in New ISP issues:

                  What error does the client report if you try to ping google.com?

                  From the PC (connected to pfSense LAN) I can ping only the pfSense LAN IP. No packets are returned when pinging google.com, 8.8.4.4 or the ISP router (10.3.3.3).

                  From the pfSense diagnostic menu, I can successfully ping google.com, 8.8.4.4, the ISP router (10.3.3.3). However pinging the LAN PC (192.168.1.100) returns no packets.

                  I can't claim to understand what the DNS lookup results mean! Or why the LAN PC has no Internet access.

                  1 Reply Last reply Reply Quote 0
                  • V
                    viragomann @Seamus
                    last edited by

                    You wrote this in your second post:
                    @seamus said in New ISP issues:

                    Traceroute from my PC on LAN completed with no problems - 9 hops to reach 8.8.4.4 and no times over 6ms. Pinging 8.8.4.4 also report no lost packets.

                    And this in your last:
                    @seamus said in New ISP issues:

                    However pinging the LAN PC (192.168.1.100) returns no packets.

                    Now what??
                    Can you ping the IP? If so can you ping dns.google.com?

                    It's hard to analyze a problem, when you provide contradictory information.

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

                      Yes, that statement is what made it look like a DNS issue initially but if that's no longer the case then look at the firewall rules on LAN and the outbound NAT rules.

                      Steve

                      1 Reply Last reply Reply Quote 1
                      • S
                        Seamus @viragomann
                        last edited by

                        @viragomann said in New ISP issues:

                        It's hard to analyze a problem, when you provide contradictory information.

                        You may have a point viragomann, I don’t understand it myself. So I have just run through the setup wizard again on pfSense and I’ve done some more testing. This is what I’m getting.

                        Ping from PC (192.168.1.100) to pfSense LAN (192.168.1.1) is successful – 0% loss
                        Pinging PC (192.168.1.100) from pfSense fails – 100% loss
                        Is this abnormal?
                        I’ve also done a Traceroute from PC and I’ll add the results presently. I can’t say I understand what the results mean!

                        S N 2 Replies Last reply Reply Quote 0
                        • S
                          Seamus @Seamus
                          last edited by

                          @seamus said in New ISP issues:

                          Traceroute

                          Tracing route to 8.8.4.4 over a maximum of 30 hops
                          1 <1 ms <1 ms <1 ms pfSense [192.168.1.1]
                          2 1 ms <1 ms <1 ms 10.3.3.3
                          3 5 ms 4 ms 4 ms 10.8.14.1
                          4 5 ms 4 ms 4 ms 89.19.64.10
                          5 * * * Request timed out.
                          6 5 ms 5 ms 5 ms 194.88.240.55
                          7 6 ms 5 ms 5 ms 74.125.244.1
                          8 5 ms 4 ms 5 ms 74.125.244.7
                          9 6 ms 5 ms 6 ms 142.250.232.81
                          10 * * * Request timed out.
                          11 * * * Request timed out.
                          12 * * * Request timed out.
                          13 * * * Request timed out.
                          14 * * * Request timed out.
                          15 * * * Request timed out.
                          16 * * * Request timed out.
                          18 * * * Request timed out.
                          19 * * * Request timed out.
                          20 * * * Request timed out.
                          21 5 ms 4 ms 4 ms 8.8.4.4
                          Traceroute complete.

                          1 Reply Last reply Reply Quote 0
                          • N
                            netblues @Seamus
                            last edited by

                            @seamus said in New ISP issues:

                            @viragomann said in New ISP issues:

                            It's hard to analyze a problem, when you provide contradictory information.

                            You may have a point viragomann, I don’t understand it myself. So I have just run through the setup wizard again on pfSense and I’ve done some more testing. This is what I’m getting.

                            Ping from PC (192.168.1.100) to pfSense LAN (192.168.1.1) is successful – 0% loss
                            Pinging PC (192.168.1.100) from pfSense fails – 100% loss
                            Is this abnormal?
                            I’ve also done a Traceroute from PC and I’ll add the results presently. I can’t say I understand what the results mean!

                            Turn off firewall /allow icmp echo replies to your pc.
                            trace says connectivity to the Internet is ok
                            No issues in both statements.

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

                              Yeah seems OK so that starts to look like a DNS issue again. I assume DNS is failing on the client still?

                              1 Reply Last reply Reply Quote 1
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