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    Trying to understand the firewall rules

    Scheduled Pinned Locked Moved Firewalling
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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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