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    Can ping to LAN but not Web Configurator

    Scheduled Pinned Locked Moved Problems Installing or Upgrading pfSense Software
    48 Posts 9 Posters 65.6k Views
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    • stephenw10S
      stephenw10 Netgate Administrator
      last edited by

      Hmm, weird. Looks like the pfSense box is replying but your laptop is ignoring the replies. Perhaps.  :-\

      Are you able to browse other external sites? Ping external addresses? In other words is routing working?

      I notice your WAN interface has auto-negotiated to 10Mb which is odd but shouldn't be causing this.

      Steve

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      • DerelictD
        Derelict LAYER 8 Netgate
        last edited by

        I've installed Wireshark and as soon as I go to the pfsense box (192.168.1.1) I get the RED text on Black shown in Wireshark

        SYN from you
        SYN,ACK from pfSense
        ACK from you should be next.  It's not there so you aren't getting the webConfigurator.

        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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        • S
          SKT174
          last edited by

          So .. just to be sure I'm not doing anything stupid…

          I've wipe & Re-Install PFsense again.

          I selected option 1

          I selected option I

          And it is still not working for some strange reason.

          The routing isn't working either as I can't access external internet.

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          • K
            kejianshi
            last edited by

            More USB ethernet…

            Trouble shooting these setups is always hard when they are so simple and yet things refuse to work, but I don't like USB ethernet, and I'm sure its working for some people in some installations, but up to this point, its the most likely culprit I've noticed.  You don't have even a single built in NIC?

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            • S
              SKT174
              last edited by

              I'm thinking whether it's those USB ethernet adapter is causing it.  I'll see if I can try another brand and see if it makes any difference.

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              • stephenw10S
                stephenw10 Netgate Administrator
                last edited by

                Hard to believe it would work with ICMP but not TCP.
                As Derelict said your client is not responding. This appears to be a client side issue. Yet you say you tried a different client? Different browser?

                Steve

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                • DerelictD
                  Derelict LAYER 8 Netgate
                  last edited by

                  You want to check that "Block private networks" is unchecked on your WAN interface.  I don't know if the installer does that by default if it detects a private WAN address.

                  Is that wireshark capture a few messages back taken from the 192.168.1.100 windows client?  If so, you need to figure out why it is not sending an ACK in reply to the SYN,ACK sent by pfSense in the connection process before you waste any more time looking at pfSense.

                  Or, as has been mentioned, USB ethernet interfaces: not a fan.  BUT if they're mucking up the works, it should show in the SYN,ACK captured by wireshark.

                  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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                  • ?
                    Guest
                    last edited by

                    If you look at "Valid interfaces are" the answer is:

                    Probably not…

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                    • DerelictD
                      Derelict LAYER 8 Netgate
                      last edited by

                      Yeah.  More likely some software firewall or antivirus or ? on the windows pc.

                      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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                      • johnpozJ
                        johnpoz LAYER 8 Global Moderator
                        last edited by

                        You will notice that the connection just kind of dies.. Not only do you see retrans from pfsense you call see retrans from .100 to .1

                        It is not answering dns queries either..

                        Juts for be complete - how you would verify the mac your pinging is to look in your arp table on the .100 box

                        So

                        C:>arp -a

                        Interface: 192.168.1.100 –- 0xc
                          Internet Address      Physical Address      Type
                          169.254.7.80          00-26-24-08-8a-ed    dynamic
                          169.254.82.185        00-1c-c3-09-05-7a    dynamic
                          192.168.1.3          00-0c-29-c8-f2-dc    dynamic
                          192.168.1.7          00-0c-29-dd-02-ba    dynamic
                          192.168.1.8          00-0c-29-55-4f-95    dynamic
                          192.168.1.40          00-1f-29-54-17-14    dynamic
                          192.168.1.97          00-26-24-08-8a-ed    dynamic
                          192.168.1.98          00-1c-c3-09-05-7a    dynamic
                          192.168.1.99          00-06-dc-43-ad-78    dynamic
                          192.168.1.253        00-0c-29-1e-18-ae    static
                          192.168.1.255        ff-ff-ff-ff-ff-ff    static
                          224.0.0.22            01-00-5e-00-00-16    static
                          239.255.255.250      01-00-5e-7f-ff-fa    static

                        You notice from my workstation that is the mac I saw on my ifconfig..

                        Your sniff is odd.. You see 3 different connections to 80..  And yes you see the syn-ack back, but you never send ack?  And actually start the conversation..  And then you just see a bunch of retrans

                        You see retrans from pfsense sending his syn-ack because he never got back the ack.. And you see .100 sending back his syn because seems he thinks he never got the syn-ack.

                        Need to figure out why your client .100 did not send back ACK to the syn-ack he was clearly sent and seen by wireshark for the 3 different connections you tried to create to http (80)

                        Do you have another client you can try?

                        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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                        • DerelictD
                          Derelict LAYER 8 Netgate
                          last edited by

                          MACs will also be in your wireshark captures.

                          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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                          • johnpozJ
                            johnpoz LAYER 8 Global Moderator
                            last edited by

                            yeah in there it looks right

                            to where he is sending the request for 80

                            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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                            • DerelictD
                              Derelict LAYER 8 Netgate
                              last edited by

                              Are these captures taken on .1 or .100?

                              It makes a difference because if from .1 we know the SYN-ACK was sent, but not that it was actually received.  If from .100 we know it was sent and received.

                              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)

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

                                Have to assume it is taken on .100

                                Since he states
                                "I've installed Wireshark and as soon as I go to the pfsense box (192.168.1.1) I get the RED text on Black shown in Wireshark"

                                I doubt he installed wireshark on the pfsense box ;)

                                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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                                • S
                                  SKT174
                                  last edited by

                                  Hi Guys

                                  I want to isolate the problem, so I grab an old desktop, put an extra NIC in it and install PFSense.

                                  Notebook, Cables, is the same, only difference here is the pfsense box.

                                  Once installation finished

                                  Everything works as it should, I can go to Web Configurator, i can access external internet.

                                  So …

                                  For some strange reason.. pfsense doesn't like those USB to NIC adapters, even though you can ping it.

                                  So disappointed as I really want to use those Intel NUC for pfsense.

                                  Thanks so much for the help, really appreciated.  :)

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                                  • K
                                    kejianshi
                                    last edited by

                                    Hey - I like your pfsense you made with the old computer.  Thats not bad actually.
                                    I bet it can handle whatever you need to throw at it also.

                                    Low power and small is nice, but that one might be pretty trouble free also assuming you can blow out the fans every 6 months or so.

                                    Not sure whats up with the USB NICs - It crossed my mind that they may not be getting enough power from the usb port?
                                    Not sure?

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                                    • stephenw10S
                                      stephenw10 Netgate Administrator
                                      last edited by

                                      The USB NICs certainly look like the issue then. Weird that you can ping just fine though.
                                      Not sure why we haven't suggested this before but try disabling any hardware offloading options. Looking back at your ifconfig output the nics both claim to support checksum offloading. If that's not working I guess it would explain it.

                                      Steve

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                                      • S
                                        SKT174
                                        last edited by

                                        How do I disable hardware offloading?

                                        I'll willing to give it a try  :)

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                                        • DerelictD
                                          Derelict LAYER 8 Netgate
                                          last edited by

                                          System: Advanced: Networking

                                          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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                                          • stephenw10S
                                            stephenw10 Netgate Administrator
                                            last edited by

                                            Not helpful when you can't access the webgui.  ;)
                                            You could maybe edit the config file. There's probably a way to do this from the developer shell, but I'm not sure what it might be.
                                            You can probably do it temporarily from the command line. Something like:

                                            ifconfig ue1 -txcsum -rxcsum
                                            

                                            I imagine that will get reverted when the config is reloaded though.

                                            Steve

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