https://www.cnblogs.com/cainiaoit/p/8580164.html
http://blog.hanlei.org/587/
注册表
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetservicesRasManParameters] "ProhibitIpSec"=dword:00000000 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesPolicyAgent] "AssumeUDPEncapsulationContextOnSendRule"=dword:00000002
[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesPolicyAgent]
"AssumeUDPEncapsulationContextOnSendRule"=dword:00000002
批处理
::显示名称IPsec Policy Agent
sc config "PolicyAgent" start= auto
::显示名称Routing and Remote Access
sc config "RemoteAccess" start= auto
::显示名称Remote Access Auto Connection Manager
sc config "RasAuto" start= auto
::显示名称Remote Access Connection Manager
sc config "RasMan" start= auto
::显示名称Secure Socket Tunneling Protocol Service
sc config "SstpSvc" start= auto
net start PolicyAgent
net start RemoteAccess
net start RasAuto
net start RasMan
net start SstpSvc
l2tp.reg
gpupdate /force /wait:0