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larry
Asked: 2011-03-01 23:12:14 +0800 CST

Is there any L2TP client without IPsec?

  • 772

I want to use L2TP to through NAT, but i do not need IPsec, because IPsec waste much CPU. I can setup one L2TP server on linux, so is there any L2TP windows client without IPsec ?

nat l2tp

2 Answers

  1. You can use default L2TP windows client and ProhibitIpSec.

    • 3

  2. My understanding is that L2TP without IPsec in insecure.

    "WARNING: Disabling IPSEC for L2TP connections is a severe limitation in security and is recommended only for troubleshooting." - http://support.microsoft.com/kb/258261

    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Rasman\Parameters
Add the following registry value to this key:

Value Name: ProhibitIpSec
Data Type: REG_DWORD
Value: 1

Note that you must restart your Windows 2000-based computer for the changes to take effect.
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