IPsec Tunneling Between FreeBSD Hosts
Submitted By: WEBMASTER
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IPsec is short for IP security, which is a manner of encrypting and authenticating Internet traffic all the way down to the IP packet level. That means that protocols such as SMTP, which are inherently insecure, can be reliably secured. Inherent to IPv6, IPSec is somewhat bolted onto the side of IPv4. But it works, and it works very well.
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