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Poor openvpn speeds on pfsense client, fast with desktop client to same server.

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  • D
    diablo266
    last edited by Sep 21, 2014, 6:49 PM

    Hello,

    I have pfsense 2.1.5 i386 setup as an openvpn client connecting to a ubuntu openvpn server. I have pfsense setup to route specific traffic on the lan through the vpn link. This is working fine, however the most performance i'm able to push through the VPN link is ~20Mbit. If i connect to the same vpn server with a desktop client (windows or linux) i'm able to push 80-100Mbit/s. CPU usage on my pfsense machine is about 20% on a 1.6Ghz atom soekris net6501-70. The biggest thing i'm not sure about is the NAT outbound rule i created, it was the only way I was able to get traffic to flow and I just guessed. Thanks!

    ubuntu server config:

    port 1197
    proto udp
    dev tun
    ca ca.crt
    cert server.crt
    key server.key  # This file should be kept secret
    dh dh2048.pem
    server 10.9.0.0 255.255.255.0
    ifconfig-pool-persist ipp3.txt
    push "dhcp-option DNS 208.67.222.222"
    push "dhcp-option DNS 208.67.220.220"
    duplicate-cn
    keepalive 10 120
    comp-lzo
    user nobody
    group nogroup
    persist-key
    persist-tun
    status openvpn-status.log
    verb 3
    

    Client Setup



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