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Home > Archive > 70-220 > September 2001 > L2tp / Pptp
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| trebor 2001-09-14, 9:09 am |
| Congratulations to all those that have recently passed the exam.
I have a quick question that I am sure you guys could answer in your sleep. Here it goes.
When implimenting a VPN when is it correct to use L2TP and when PPTP?
Trebor | |
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| these are from technet;
PPTP provides simple-to-use, lower-cost VPN security. Unlike IPSec technology, PPTP is compatible with Network Address Translators (NAT) and supports both multi-protocol and multicast environments. It also combines standard user password authentication with strong encryption without requiring the complexity and expense of public key infrastructure (PKI).
L2TP in combination with IPSec is the only standards-track technology that addresses these remote access VPN requirements while leveraging IPSec for encryption. L2TP currently retains the same IETF standards-track status as IPSec.
You can find more at;
http://www.microsoft.com/technet/treeview/default.asp?url=/TechNet/prodtechnol/windows2000serv/deploy/confeat/vpninter.asp | |
| trebor 2001-09-15, 3:33 am |
| Thanks for that Yakli. This sentence from the URL you gave me clears it up for me.
"IPSec provides advanced security for VPN but was not designed to address critical remote access requirements such as User Authentication and Address Assignment. In addition, it does not support multi-protocol or multicast (including some routing protocols). It is applicable primarily to IP-only, unicast-only situations."
Trebor |
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