 OpenVPN MTU 1500 mssfix Hide VPN Detection API "HELP!'
Those should be some good key words....
I could use some help.
Some how, some way it has to be possible to get a maximum transmission unit (MTU) of 1500 bites out the other end of a OpenVPN VPN.
I was able to do it with SoftEther VPN so I would think it's possible with OpenVPN.
I tried mssfix options of: mssfix 0, mssfix 1400, and some others I found online. I tried them in server and client configs but none of it worked. For all I know I might have done it wrong.
I'd love to hear Aspkin or 24vc chime in on this one... But I'm guessing chances of that happening are slim to none...
I did a little reading on MTU and it sounded like if you set the VPN MTU slightly lower to allow room for the bites the encryption adds to the header and footer it wouldn't fragment and you could get 1500 bite packets or a 1500 bite value in headers out the other side.
I tried sending out pings and found I could send out 1470 bites through the VPN without fragmenting but when I tried to subtract 40 from 1470 for a mssfix value it didnt change anything.
VPN Detection API's show my MTU is 1385 bites. (it doesnt give me away as a VPN but I'd love to be able to get 1500 bites through it like a Ethernet or Modem would).
Really at this stage I have no idea what Im talking about.. Hopefully someone will come across this that does... or I'll figure it out eventually.
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