• Julien Muchembled's avatar
    Disable UDP protocol by default for OpenVPN tunnels · cd653523
    Julien Muchembled authored
    UDP protocol is useless if nothing is done to prevent fragmentation.
    Otherwise, it is at best unefficient.
    There exist routers on the internet that filter fragmented packets with specific
    data. This is hard to debug because TCP connections hang randomly when there is
    no OpenVPN encryption.
    Now, only TCP is enabled by default. A second protocol should be there for
    better performance when possible, either existing UDP one (provided it is
    guaranteed there is no fragmentation) or something better (GRE ?).
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