Look up: IPsec

1. 
   IPSec
   Internet Protocol Security, details ...
   Found on http://www.cryer.co.uk/glossary/i/index.
   
   
2. 
   IPSEC
   Internet Protocol Security
   Found on http://www.geocities.com/ikind_babel/bab
   
   
3. 
   IPsec
   secure IP - an extension to the IP packet header to provide secure communications. This gives it the ability to encrypt any higher layer protocol, including TCP and UDP. Other secure interconnection mechanisms in the IP world are SSH and SSL. IPsec is not a tunnelling protocol in the strict sense and it must be embedded in the IP implementation, which almost always means it, and its key management, must reside in the operating system. IPsec is part of the IPS (Internet Protocol Suite) and is defined by RFC 2401 (with associated RFCs 2402-12 inclusive).
   Found on http://www.flying-boat.co.uk/glossary/
   
   
4. 
   IPSec
   (In topic `Network Architectures`) IPSec, short for IP Security, is a set of protocols developed to enable the secure exchange of IP packets over unprotected networks such as the Internet. It is anticipated that IPsec will be widely used in the implementation of VPN`s which are categorised by intranets, extranets and remote dial access.
   Found on http://www.it-architects.co.uk/a_-_z_glo
   
   
5. 
   IPSec
   (In topic `Security`) IPSec, short for IP Security, is a set of protocols developed to enable the secure exchange of IP packets over unprotected networks such as the Internet. It is anticipated that IPsec will be widely used in the implementation of VPN`s which are categorised by intranets, extranets and remote dial access.  
   Found on http://www.it-architects.co.uk/a_-_z_glo
   
   
6. 
   IPsec
   IP Security - Set of Protocols Developed to Support a Secure Exchange of Packets at the IP Layer; Has Been Deployed Widely to Implement Virtual Private Networks (VPNs)
   Found on http://www.mcsx.co.uk/glossary.php
   
   
7. 
   IPSec
   IPSec is an emerging standard to add security services to the IP protocol. It provides robust security, encompassing user authentication, privacy, and data integrity.
   Found on http://www.everlands.co.uk/glossary.htm
   
   
8. 
   IPsec
   (networking, protocol, security) ('IP Secure'?) A protocol that provides security for transmission of sensitive information over unprotected networks such as the Internet. IPsec acts at the network layer, protecting and authenticating IP packets between participating devices ('peers'), such as Cisco routers. IETF IPsec (http://ietf.org/ids.by.wg/i...
   Found on
   
   
9. 
   IPsec
   `IPsec` (`IP security`) is a suite of protocols for securing Internet Protocol (IP) communications by authenticating and/or encrypting each IP packet in a data stream. IPsec also includes protocols for cryptographic key establishment.
   Found on http://en.wikipedia.org/wiki/IPsec