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    Can ping to LAN but not Web Configurator

    Scheduled Pinned Locked Moved Problems Installing or Upgrading pfSense Software
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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)

                  1 Reply Last reply Reply Quote 0
                  • 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)

                                  1 Reply Last reply Reply Quote 0
                                  • 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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                                    • DerelictD
                                      Derelict LAYER 8 Netgate
                                      last edited by

                                      Duh.  Catch 22.

                                      Those CLI changes might not stick but if they work the GUI should be accessible and the permanent changes saved.

                                      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
                                      • C
                                        cgehring
                                        last edited by

                                        @stephenw10:

                                        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

                                        I happened to be doing the exact same config (Love the Intel NUC!!!).  I was also using two USB NICs, and had the exact same issue.  Disabling checksum offloading as show above fixed it!!!!

                                        Thank you!

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