Perf issues on OpenVPN(and IPsec) with Site to Site



  • Hey Everyone,

    I've been fighting an issue where site to site with two PFSense boxes. My connection is 100/15 and the remote is 50/10Mbps. Connection is established, and working great with the exception that I'm only get about 1Mbps of transfer. No matter what I seem to do it is throttled. I had started with IPsec as well, and it had the same issue. I have another IPsec tunnel and it pulls the full ~15 up I have when transfer on it(connected to Windows Azure). I don't know if it's ISP throttling at this point, but wanted to see if anyone had suggestions. I've searched the forms, and tried doing MSS Clamping, but it did not help on this tunnel. I've turned encryption off to test, but haven't had a chance to try since changing the settings. I don't have a client from off the ISP I can try to see if it's ISP limit or not. Any ideas would be very much appreciated.

    OpenVPN Config
    Shared Key
    UDP
    Device mode Tun
    Port (Custom)
    Concurrent connections set to 10(Only have one client connecting)
    two advanced rules
    push "route 192.168.0.0 255.255.255.0";
    route 192.168.10.0 255.255.255.0;

    2.1-RELEASE  (amd64)
    built on Wed Sep 11 18:17:37 EDT 2013

    FreeBSD 8.3-RELEASE-p11

    Only difference on the boxes is the HDD they use. Below are the specs
    Processors 4
    Model Intel(R) Atom(TM) CPU 330 @ 1.60GHz
    CPU Speed 1.6 GHz
    PCI Devices

    • atapci0: Intel ICH7 UDMA100 controller
    • atapci1: Intel ICH7 SATA300 controller
    • ehci0: Intel 82801GB/R (ICH7) USB 2.0 controller
    • isab0: PCI-ISA bridge
    • pcib1: ACPI PCI-PCI bridge
    • pcib2: ACPI PCI-PCI bridge
    • pcib3: ACPI PCI-PCI bridge
    • pcib4: ACPI PCI-PCI bridge
    • re0: RealTek 8168/8111 B/C/CP/D/DP/E/F PCIe Gigabit Ethernet
    • re1: RealTek 8168/8111 B/C/CP/D/DP/E/F PCIe Gigabit Ethernet
    • uhci0: Intel 82801G (ICH7) USB controller USB-A
    • uhci1: Intel 82801G (ICH7) USB controller USB-B
    • uhci2: Intel 82801G (ICH7) USB controller USB-C
    • uhci3: Intel 82801G (ICH7) USB controller USB-D
    • vgapci0: VGA-compatible display

    Memory 2048 MB


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