Security+ - IPSec and PPTP Question?

Author

IPSec and PPTP Question?

dpaille

2003-04-22, 2:35 pm

Ok, IPSec apparently works on the Network Layer (3) right? And L2TP works on the Data Link Layer (2) right?

So why am I having a hard time understanding what is going on when you are running IPSec with L2TP? Does it setup a tunnel first? Then the tunnel is established.....switches over to Layer 3 to establish an IPSec Tunnel?

Anybody? Thanks,
Dom

azimuth40

2003-04-22, 4:26 pm

L2PT and PPTP are IPSEC protocols. IPSEC is an addon to IPv4 so it is at the OS layer and therefore needs help. IPv6 it all become native and I think the function drops back to layer2. From memory may be wrong. There be fires about got to go.

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