My is IP Address	•
Detail of TCP/IP	•
Internet IP Addressing	•
IP Subnetting	•
IPv6 Technologies	•
OSI Model	•
Network Security	•
Hacking Explained	•
Types of Hacking	•
Firewall & IDS	•
VPN (Virtual Private Network)	•
IPSec (IP Security)	•
Data Encryption	•
DES & Key Exchange	•
Ethernet Technologies	•
History of Ethernet	•
LAN Switching History	•
LAN Switching	•
Virtual LAN	•
Bridge & Switch	•
Router Technologies	•
Routing Technologies	•
WAN Technologies	•
Fiber-optic Networking	•
Frame Relay Technologies	•
ATM (Asynchronous Transfer Mode)	•
MPLS (Multiprotocol Label Switching)	•
Detail of MPLS	•
Wireless Networks	•
WLAN (Wireless LAN)	•
Wireless Roaming and Bridges	•
Broadband Technologies	•
DSL Technologies	•
Cable Broadband	•
ISDN Technologies	•
IP Telephony	•
VoIP (Voice over IP)	•
IP Convergence	•
IP Multicast	•
Videoconference	•
Network Maintenance	•
Disaster Recovery	•
QoS (Quality of Service)	•
Routing Protocols	•
High Availability	•
STP (Spanning Tree Protocol)	•
Data Center	•
SAN (Storage Area Networks)	•
SAN Technologies	•
SNA (Systems Network Architecture)	•
Desktop Protocols	•
E-Learning	•
E-Commerce	•
Windows & Linux Comparison	•
SQL Server	•

IPSec (IP Security)

IP Security
IP Security (IPSec) is an Internet standard for establishing and managing data privacy between network entities over unprotected networks such as the Internet. IPSec security services are provided at the network layei allowing simple and effective encryption of IP traffic. Prior to IPSec, you encrypted data on an application basis or added hardware (HW) encryptors to the network. None of these security steps was standardized at the time, so companies tended to use proprietary solutions, limiting how they could share secure information with trusted partners, customers, and resellers.

With IPSec networks, tunnels essentially serve as point-to-point "virtual circuits" through a service provider’s network.

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