They are both VPN tunnelling protocols. IPsec operates in layer 3 and L2TP in layer 2. IPsec uses encryption, L2TP doesn’t so it runs over IPsec?? So what’s the point of using L2TP???
I’ve got these facts but I still fail to understanding the bigger picture. Can somebody explain it in few laymen words. Once I understand the simple overall picture, then I’ll be able to read more on it.
Thank you
Well, in the realm of VPNs, we consider L2TP/IPSec as a suite - L2TP on layer 2, IPSec on layer 3. Don’t think of L2TP as a comparative to IPSec, but rather, to PPTP.
L2TP was designed to take some good things from PPTP and go forward. L2TP, though, is not as widely known. L2TP allows for tunneling over a variety of media, PPTP only tunnels over IP. L2TP supports multiple tunnels between endpoints. PPTP only supports one.
L2TP over IPsec combines technologies like the L2 transfer protocol and IPsec. It works like a VPN, where IPsec helps create a secure channel that encapsulates L2TP traffic.
The industry is seeing less of L2TP/IPSec for VPN, in favor of other VPNs such as SSL VPN, SSTP, and OpenVPN.
HTH
Hope this helps.
https://www.howtonetwork.com/comptia-network-study-guide-free/securing-network-access/#L2TP
Regards
Paul
in the realm of VPNs, we consider L2TP/IPSec as a suite - L2TP on layer 2, IPSec on layer 3. Don’t think of L2TP as a comparative to IPSec, but rather, to PPTP
I think this is my problem. Thank you so much for taking the time to explain this in simple words.
Nice. Glad I could help!