On 13/04/18 04:22, Jan Just Keijser wrote:
> Hi,
> On 12/04/18 16:50, Gert Doering wrote:
>> Hi,
>> On Thu, Apr 12, 2018 at 10:27:08AM -0400, Selva Nair wrote:
>>>>> This change was made not because of any actual performance gains, but
>>>>> because of user reports that certain firewall or AV software tries to
>>>>> QoS the adapter based on its reported adapter speed, which is of
>>>>> course
>>>>> a problem if the VPN connection is capable of more than 100 Mbit.
>> [..]
>>> Or am I mistaken -- does this setting really affect the max throughput?
>> Not normally, but when certain 'helpful' software is around...
> as a side note: there is one thing to keep in mind when changing this:
> Windows calculates its automatic routing metrics based on the adapter
> speed. So if we increase the speed then there are scenarios possible
> where the tun adapter route will take precedence over a lan route : in
> most cases that is what a user would want, but there are (rare)
> scenarios where that could have nasty side effects (including the
> "biting your own tail" problem)

Can't we come up with a reasonable default that works for 99.9% of the
users (i.e. 1Gbps) and allow experts to tweak that? or tweak the metric
(I think this is already possible, given what Selva said)?


Antonio Quartulli

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