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. https://attilasec.com/blog/ipsec-tunnel-technology/
blog article
AN INSIDE LOOK AT THE IPSEC TUNNEL
The Internet is an integral part of daily business for most organizations today, and along with this comes an inherent vulnerability to cyber attacks. In the face of growing incidents of cybercrime, enterprises struggle with the quandary of how to keep data secure while avoiding disruptions to daily operations. For many businesses, the IPSec tunnel offers the means to enable safe and secure transmission of and access to data. What Is An IPSec Tunnel? An Internet Protocol Security (IPSec) tunnel is a set of standards and protocols originally developed by the Internet Engineering Task Force (IETF) to support secure communication as packets of information are transported from an IP address across network boundaries and vice versa. An IPSec tunnel allows for the implementation of a virtual private network (VPN) which an enterprise may use to securely extend its reach beyond its own network to customers, partners and suppliers. READ MORE