From my understanding, virtual adapter's MTU size will be determined based on the MTU value set on the Internal Port of the VPN server (Configured-value 'minus' 100) and it will be pushed as one of the connection parameters.
FYI, I have used Windows "netsh" command to modify the MTU value for LAN/WiFi adapters, however I am not sure if we can do the same for virtual adapters. @zanyterp
Any thoughts ?
Below is the command used to modify the MTU value for physical interfaces:
1.Type netsh interface ipv4 show subinterface
3.You will see a list of network interfaces.
4.Type netsh interface ipv4 set subinterface “Local Area Connection” mtu=1430 store=persistent
5.You should replace Local Area Connection with the name that appeared in the “Interface” column from steps 1-3.
6.Press Enter and restart you computer.
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