????????Windows 10?汾1607?汾14393.102????14393.187????????????????????????L2TPVPN???
?????????????硣???????????????????治?????????????????????????????Щ??????????????????????
????????????????????VPN?????????“ L2TP????????????????????????????????????Э???????????????????”
??????????
????1. ????“???”??????“????”??????“regedit”???????“???”
????2. ?????????????????????????HKEY_LOCAL_MACHINESystemCurrentControlSetServicesRasmanParameters
????3. ??“??”??????????“???”->“DWORD?”
????4. ??“????”???У?????“ProhibitIpSec”
????5. ??“???????”???У?????“1”???????“???”
????6. ??????????????????????????
??????????
????????????
????HKEY_LOCAL_MACHINESystemCurrentControlSetServicesRasmanParameters
??????AllowL2TPWeakCrypto??????1??????0??16?????
????????????????????????????????????е????????????????QQ????????????????????????????QQ?????????DNS???????黹????????
???????????
?????ο?
????https://community.barracudanetworks.com/forum/index.php?/topic/26466-ipsec-windows-10-not-working/
????????????

???????????????  "HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesPolicyAgent"????? ???  dword??????     AssumeUDPEncapsulationContextOnSendRule   ??2??

???????????????????
???????????????ProhibitIpSec??AllowL2TPWeakCrypto??????????????????????????????