IPsec is a suite of protocols that are used to secure internet communications—in fact, the name itself is an abbreviation for Internet Protocol Security. IPsec was first codified in the ’90s, spurred ...

With the explosive growth and popularity of the Internet, more and more enterprises are looking towards building their network infrastructure across the Internet without having to spend a lot on ...

VPN (Virtual Private Network) is a technology that provides secure communication through an insecure and untrusted network (like the Internet). Usually, it achieves this by authentication, encryption, ...

When the idea of MPLS VPNs was first discussed, there was a strong notion of competition between MPLS VPNs and IPsec VPNs. Many people voiced concern that MPLS VPN technology does not add significant ...

* IPSec enhancement could be boon to VoIP Last time, we offered up a refresher about IP VPN terminology. Our motivation was the fact that managed VPN services are on the rise, and most of the people ...

IKE Phase II negotiation is done in only one mode, quick mode. Due to the fact that Phase II negotiation's goal is establishment of an IPsec SA, quick mode exchange must inform both crypto endpoints ...

IPSec functions at Layer 3, providing security by using end-to-end tunnels. These are encrypted only at the ends of each tunnel. A major drawback to IPSec is its complexity. Not only does it typically ...

Build Your Skills: Learn why NAT can cause VPN connection problems Your email has been sent Why network address translation (NAT) on an Internet router keeps the VPN client from making the connection ...