Another small post out of my “At a Glance” series: The different types of virtual private networks (VPNs). Looking at Site-to-Site and Remote Access VPNs.
This sketch shows the common IPsec and TLS based VPNs that are used on modern next-generation firewalls. Tunnel mode only – no transport mode. It does not depict MPLS, L2TP, GRE, and SSH. While those protocols do tunneling with or without encryption, the term “VPN” is normally used for the following types:
Any comments? Please do so!
Here is a detailed post about route- vs. policy-based site-to-site VPN tunnels. Sorry, no more details about Remote Access VPNs here. It’s just about an overview. ;)
May God bless you. Especially these days.