Virtual Private Networks [X-post] L2TP with CA authentication, no encryption.

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[X-post] L2TP with CA authentication, no encryption. AM 08-07-06
Posted by AM on August 7, 2006, 11:09 am
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Hi all,

I hope someone of you can answer my question.
I want to get some sort of access control over who connects to my Cisco box and
gets outside to Internet.
I configured the PPTP protocol and from Windows machine it runs very well.
Basically I enabled the vpdn on the router and on ethernet0 I allow only tcp
1723 and gre to it.
It works pretty fine. Everyone who wants to get access must authenticate itself
on the router.
And you can configure what the authenticated people can do with an ACL put on
incoming connection on int
virtual-template chosen for the vpdn group.
So everything travels over this pptp tunnel. But some of clients connected need
to establish a VPN tunnel to Intranet
companies so IPsec must works over PPTP. I experienced that is quite not stable
so I would like to switch from PPTP to
L2TP. And possibly to add CA authentication.

May anybody of you tell me where to find out some samples to set up a L2TP
tunnel, no encryption and with authentication
through CA certificates (the last issue is more important for me as I'll be
starting from scratch with that topic)?

Alex.

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