Introduction to IPSec VPN

IPSec Tunnel Mode IPSec tunnel mode is the default mode With tunnel mode, the entire original IP packet is protected by IPSec This means IPSec wraps the

IPsec protocols IPsec authenticates and encrypts data packets sent over both IPv4- and IPv6-based networks IPsec protocol headers are found in the IP header

ipsec IPsec VPN uses the Internet Key Exchange protocol for key management and authentication IKE uses the Diffie-Hellman algorithm to generate a shared secret

ipsec Define the security policy database IPsec requires an SPD entry before allowing traffic to flow on the network This is true whether you