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    Trying to understand the firewall rules

    Scheduled Pinned Locked Moved Firewalling
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    • C Offline
      coxhaus
      last edited by

      I have a packet capture with Hulu streaming freezing and starting over.  I can't add it as an attachment.  What do we want to do with it?

      pfsense.txt

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      • johnpozJ Online
        johnpoz LAYER 8 Global Moderator
        last edited by

        yeah that is pretty useless.  Can you not just attach the actual capture or upload it somewhere we can grab it..

        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 25.07.1 | Lab VMs 2.8, 25.07.1

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        • C Offline
          coxhaus
          last edited by

          I zipped it.  This is a capture of the LAN interface when Hulu freezes and replays.

          packetcapture.zip

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          • johnpozJ Online
            johnpoz LAYER 8 Global Moderator
            last edited by

            There is nothing wrong in that short capture of whole .6 seconds..  What exactly are we suppose to see in such a small sniff..  I see 1 dup ack.. Did you forget to change it from the default 100 packets?  Which is what that sniff is..

            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 25.07.1 | Lab VMs 2.8, 25.07.1

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            • C Offline
              coxhaus
              last edited by

              OK. I will enter 0 for packet count.  Anything else I need to change?  I will run it again.

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              • C Offline
                coxhaus
                last edited by

                I have another capture but the file is too large to attach.  I get an error from your system.

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                • C Offline
                  cmb
                  last edited by

                  Can you upload it somewhere else and post a link? How big is it? Forum size limit is ~5 MB per file, ~10 MB per post. For these purposes it might be just as useful to change the packet length being captured to 64 bytes, and end up with a much smaller capture as a result.

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                  • C Offline
                    coxhaus
                    last edited by

                    It is 8.56 MB file.  I will look into changing packet length to 64 bytes.

                    Who is free for file storage now days? So I can post a link.

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                    • C Offline
                      coxhaus
                      last edited by

                      OK I have run it with 64 byte packets.

                      [packetcapture (2).zip](/public/imported_attachments/1/packetcapture (2).zip)

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                      • C Offline
                        coxhaus
                        last edited by

                        I am seeing the same issue with 2.3.1 which I loaded tonight.  I will be out of town for a few days but I will be back and can help.  Hulu still freezes and replays after Ads.

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                        • C Offline
                          coxhaus
                          last edited by

                          Any idea when my problem is going to be fixed?  My wife is getting tired of Hulu replaying.

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                          • C Offline
                            coxhaus
                            last edited by

                            I just loaded 2.3.1_1 and I still have a problem which seems the same.  Hulu streams and freezes.  Any ideas?  I can run more packet captures if it would help.

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                            • H Offline
                              Harvy66
                              last edited by

                              Out of the box, PFSense doesn't attempt to block or mess with anything, other than new incoming connections on the WAN. Have you made sure it is PFSense doing it? Have you tried to by-pass PFSense and connect directly and see if the problem persists?

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                              • johnpozJ Online
                                johnpoz LAYER 8 Global Moderator
                                last edited by

                                The only thing that seems a bit odd in that trace is this connection.  But is that have anything to do with hulu?  Its some company called doubleverify

                                NetRange:      204.154.110.0 - 204.154.111.255
                                CIDR:          204.154.110.0/23
                                NetName:        DOUBLEVERIFY-INC

                                Since its in https its hard to be sure - but its odd that your client sends Fin,ACK and then 2 RSTs for this connection.  You would normally see fin, then fin,ack from the other side that says sure Im done with this conversation as well.  Not sure what the details are with the unknown and encrypted alert.

                                Without doing MITM on the connections that are https its sometimes quite difficult to trouble shoot what is going on, because you can not really see the meat of the conversation.

                                oddconverstation.png
                                oddconverstation.png_thumb

                                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 25.07.1 | Lab VMs 2.8, 25.07.1

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                                • C Offline
                                  cmb
                                  last edited by

                                  That is indeed the only atypical thing in the capture. The TV abandoned that connection for some reason, that was the TV's doing. I doubt given how the traffic otherwise looks in general that's related to the issue, but it could be.

                                  Otherwise the capture is 100% perfect - no packet loss, no connection attempts that failed, no DNS lookups that failed, etc. Very clear from that it's not network or ISP or firewall-induced. It's either the TV, or Hulu.

                                  @coxhaus:

                                  Any idea when my problem is going to be fixed?

                                  Well it's definitely not in anything we control, so no.

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