In-Reply-To: <[EMAIL PROTECTED]>

Hello all,

It is my understanding that Cisco co-wrote the IPSec 
code for Windows 2000.  If you want to check for 
yourself go to the Windows help file for IPSec.

It is also possible to use the built-in IPSec client in 
Windows 2000 and connect it with a Cisco PIX 
firewall or a router running IOS.   The problem 
everyone having wasn't due to the IPSec 
implementation itself.  The problem was due to the 
fact that MS decided to support only L2TP in it's 
IPSec implementation.  Most IPSec VPN softwares 
only use ESP and some support both ESP and 
L2TP.  It took awhile for Cisco to release a version of 
the PIX and IOS firewalls that supported L2TP.  As of 
version 6.0 of PIX and I think 12.1 of IOS you can 
make a W2K to IOS/PIX connection without the need 
for other software clients. The setup process isn't 
pretty but it does work and I've found it to be fairly 
reliable.  Just make sure you specify that you want to 
use L2TP in your crypto statements. ESP is used by 
default.

-Steven Griffin

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