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    Iperf on Wan poor performance

    Scheduled Pinned Locked Moved General pfSense Questions
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    • J
      jordiSL
      last edited by jordiSL

      Hi everyone!

      I installed Iperf on pfsense and I ran a test through one device from the LAN to the Firewall and another test through one device from the WAN to the firewall.

      The results from the LAN are correct, I get around 900Mbit/s.
      The results form the WAN are very poor, I get around 47Mbit/s.

      On the Firewall side there's a symmetric 600Mbit/s fiber line.
      On the WAN device side there's a symmetric 300Mbit/s fiber line.
      The hardware running pfsense is a Super Micro XG-1537.
      The CPU load is only 1%.
      I ran a speed test via py37-speedtest-cli from the Firewall and I got around 585Mbit/s symmetrically.

      Do you have any idea why this is happening?

      Any help will be very appreciated.

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      • kiokomanK
        kiokoman LAYER 8
        last edited by kiokoman

        you should test from one device on the wan to one device to the Lan (and vice versa) and not to pfSense.
        pfSense is a firewall/route and not optimized to work as a client

        system/advanced/networking
        Disable hardware checksum offload
        Disable hardware TCP segmentation offload
        Disable Hardware Large Receive Offloading
        reboot and try again

        any additional package like ntopng / darkstat / suricata / snort ?

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