Openvpn mtu-test info This connection is unable to accomodate a UDP



  • I upgrade my system to the latest 2.1.5 i386.

    My ovpn logs show me this:

    openvpn[8177]: NOTE: Empirical MTU test completed [Tried,Actual] local->remote=[1557,1445] remote->local=[1557,1557]
    openvpn[8177]: NOTE: This connection is unable to accomodate a UDP packet size of 1557. Consider using –fragment or --mssfix options as a workaround.

    I have 2 clients site2site 1 use PPPoE, the other is DHCP.

    After running the test both logs show the same values for my 2 clients.

    remote=[1557,1445] remote->local=[1557,1557]

    Can someone explain me this info? and how can I start playing with this values for:

    fragment
    mssfix

    This parameters goes just in the server side?

    Any help will be appreciated, thanks.