PPTP and L2DP difference

What is the main differences between PPTP and L2TP?

Here is a link to an article highlighting the differences between the 2, the pros and cons of each, etc.
http://www.intranetjournal.com/foundation/tunneling.shtml

Did you mean L2TP?

PPTP vs. L2TP
Which VPN protocol is right for you?

http://www.win2000mag.com/Articles/Index.cfm?ArticleID=21991

Good Article on the subject.

There are a few major differences between PPTP and L2TP.

PPTP uses MMPE for encryption. Used when you don't have a certifcate server to support IPSec. Supports 40 bit and 128 bit encryption. 128 bit can only be used in the US or canada, and 40bit everywhere else. MPPE is based on user authentication. Works on a basis of "I am who I say I am"

L2TP uses IPSec. Used when you have at least on Certificate Server. Uses 40 bit or 56 bit DES, or Triple DES for encrytion. Triple DES can only be used in the US or Canada. IPSEC is based on machine authentication, meaning "This machine is guaranteed to be the machine it says it is".. Obviously this is more secure because it is easier to impersonate a person than it is to impersonate a machine.

Now, I'm not the world's foremost expert on this topic, and I am sure that there are plenty more diferences, but these are the ones I know.

Norm

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