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[Openvpn-users] MTU related question



Hi!
 
I wonder what does OpenVPN do in a "default" situation, when the MTU of the TAP device is set to 1500.
As the physical MTU is 1500 (or even less), a full tunneled packet of 1500 bytes does not fit.
Does OpenVPN let the TCP/IP stack to fragment the packet and the stack on the other  side reassembles it ?
 
Does OpenVPN break it into fragments itself (and send back FR-DF-set ICMP packets) ?
 
Regards,
David
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