ipsec

AI security interview questions tagged ipsec, across every topic.

2 questions · 0 unlocked for you

Open full answer →

Open full answer →

Concepts behind "ipsec"

Explanations of the mechanisms these questions rely on.

Network SecuritySign in

How Tunnels and VPNs WorkA tunnel carries one packet inside another; a VPN adds authentication and encryption so the inner packet crosses untrusted networks safely. IPsec negotiates keys with IKE and protects packets with ESP; WireGuard binds static public keys to allowed address ranges with a one-round-trip handshake; TLS VPNs ride over port 443. All of them authenticate who connected and then deliver packets onto a network, so what a client can reach is decided by policy behind the gateway. Leaks (DNS, IPv6, local routes), gateway vulnerabilities and broad post-connect access are where real failures happen.

Explore the full curriculum →