IPsec VPN UntangleWiki.
This field should contain the public IP address or DNS name of the host to which the IPsec VPN will be connected. WARNING Using host names with IPsec tunnels can often cause problems, especially if you have also enabled the L2TP/Xauth VPN server.
An Illustrated Guide to IPsec.
A Cryptographic Evaluation of IPsec, by Bruce Schneier and Niels Ferguson. An interesting paper on the security of IPsec, whose main point is that IPsec is far too complex to ever really be secure something which has crossed our minds as well.
What is IPsec VPN? Webopedia Definition.
Short for IP Sec urity, a set of protocols developed by the IETF to support secure exchange of packets at the IP layer. IPsec has been deployed widely to implement Virtual Private Networks VPNs. IPsec Encryption Modes. IPsec supports two encryption modes: Transport and Tunnel.
Microsoft IPsec Diagnostic Tool on Microsoft Download Center. An Illustrated Guide to IPsec by Steve Friedl. Security Architecture for IP IPsec Data Communication Lectures by Manfred Lindner Part IPsec. Creating VPNs with IPsec and SSL/TLS Linux Journal article by Rami Rosen. Virtual private networking. Layer 2 Forwarding Protocol. Avast SecureLine VPN.
The TCP/IP Guide IP Security IPSec Protocols.
I describe security associations and related constructs such as the Security Parameter Index SPI. The last three topics cover the three main IPSec protocols: IPSec Authentication Header AH, IPSec Encapsulating Security Payload ESP and the IPSec Internet Key Exchange IKE.