Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    Filecopy over VLANs breaks

    Scheduled Pinned Locked Moved General pfSense Questions
    6 Posts 3 Posters 815 Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • S
      solarizde
      last edited by

      Hey,

      I currently have a strange Problem. On a Setup with several VLANS I encounter the Problem that if a PC from VLAN1 transfers a file from a PC in VLAN2 via SMB it randomly stops copying. In a Wireshar I only see some TCP Resets.

      The Problem is clearly somehow the pfSense in between, if both PCs are in the same VLAN everything is smooth.

      I tried around with TCP Offlloading on/off and so on but unfortunately it doesnt help. Its not just SMB related, also happens with webdav and FTP so in general a file problem. Normal web connections and Download from WAN are not affected at all, Streaming and downloading large files from wan does not show this behavior.

      I know it's not easy to tell but if anybody have a any hint what could cause this strange behavior; Apreciated!

      Thanks

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

        So your seeing RSTS

        How does that have to do with pfsense - pfsense is not going to send a RST.

        Post up the pcap of these RSTs your seeing…

        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

        1 Reply Last reply Reply Quote 0
        • S
          solarizde
          last edited by

          Hi,

          I'm not 100% what exactly it is, the RST Problem was just a clue but later showed thats not the case those RST were just random unrelated, it looks like something with the TCP Window but also this not for sure. Im totaly in the dark right now. Only thing I know if instead of the pfSense I just use a routing switch to connect both hosts it works. Back to pfSense routing and error is back. The Switch routing is not a option here so this is why I need to figure out whats acutally happening.

          The copy progress seems random, like in attached dump first it start with full transfer speed but at < 1s it dropped to 0b/s after 4.14s it restart the SMB by new request and copy again.

          The attached log shows client 10.113.6.246 trying to copy from 10.102.3.250.  Client Vlan 113, Server in 102.

          It doesnt matter if the Server is a linux Samba or a windows machine.

          Dump:  https://d.pr/tJKozO

          It's not limited to SMB, a test with a HTTP Transfer did show the same problem.

          As said. I have currently no clue and just hoping anybody have seen similar issues before and thankful for any idea.

          Thanks in advance

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

            There are huge amounts of dup ack, and retrans..

            This file
            ELEX_MS12_33_ConventionPresiBRoll.mp4

            Can you draw up your network?  There is clearly something wrong here..

            A few retrans, ok a handful of dupes..  Is there wireless involved anywhere?

            That is just a crazy amount of dupes..

            errors.png
            errors.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 24.11 | Lab VMs 2.8, 24.11

            1 Reply Last reply Reply Quote 0
            • NogBadTheBadN
              NogBadTheBad
              last edited by

              What's your hardware ?

              Andy

              1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

              1 Reply Last reply Reply Quote 0
              • S
                solarizde
                last edited by

                Hey,

                yes thats weird.

                The Setup uses pfsense running bare metal on two Dell R330 (Intel Xeon CPU E3-1240 with intel server NICs) with a carp setup. Each R330 with 4 Interfaces trunked as LACP (2xWAN, 2x LAN) to the switching hardware. Here we use different juniper switches like ex2200.

                In our testing we just had the server on the same switch as the pfsense but different VLAN as the client, Client is connected to another switch. Yes there is wifi but not involved in this issue, wifi is another vlan.

                Already tried to disable all the offloading features.

                Capture.PNG
                Capture.PNG_thumb

                1 Reply Last reply Reply Quote 0
                • First post
                  Last post
                Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.