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    IPv6 flow label support

    Scheduled Pinned Locked Moved IPv6
    ipv6
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    • imcdonaI
      imcdona
      last edited by imcdona

      Wanted to let everyone know that I've submitted feature request 8599 for IPv6 flow label support in pfSense.

      Here's a short list of possible uses for IPv6 flow labels in pfSense:

      • Ability to apply QOS based on IPv6 flow labels
      • Using the IPv6 Flow Label for Load Balancing in Server Farms[https://tools.ietf.org/html/rfc7098]
      • Utilize IPv6 flow labels in Equal Cost MultiPath (ECMP) or Link Aggregation (LAG) implementations [https://tools.ietf.org/html/rfc6438]

      Windows 10 now populates IPv6 flow labels by default:

      Beginning with the Creators Update, outbound TCP and UDP packets over IPv6 have this field set to a hash of the 5-tuple (Src IP, Dst IP, Src Port, Dst Port).  Middleboxes can use the FlowLabel field to perform ECMP for in-encapsulated native IPv6 traffic without having to parse the transport headers.  This will make IPv6 only datacenters doing load balancing or flow classification more efficient.
      

      Thanks

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      • JKnottJ
        JKnott
        last edited by

        It's also been in Linux for a while.

        PfSense running on Qotom mini PC
        i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
        UniFi AC-Lite access point

        I haven't lost my mind. It's around here...somewhere...

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