- Adapter MTU:
[HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet \Services \Tcpip \Parameters \Interfaces \{Adapter-id/GUID}]
MTU = 1500
More Info MS KB900926 - Point-To-Point Protocol (PPP) MTU for Modem DialUp Networking(DUN) or over Ethernet (PPPoE):
More Info MS KB283070[HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet \Services \NdisWan \Parameters \Protocols \0]
ProtocolType = 0x00000800
PPPProtocolType = 0x00000021
ProtocolMTU = 1500
More Info MS KB283165
More Info MS KB826159
More Info MS KB317496
- Virtual Private Network (VPN) Tunnel MTU:
[HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet \Services \NdisWan \Parameters \Protocols \0]
ProtocolType = 0x00000800
PPPProtocolType = 0x00000021
TunnelMTU = 1400
More Info MS KB826159
Related Configure Max Transfer Unit (MTU) in Windows Vista/2008/7
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