IPsec

(redirected from Encapsulating Security Payload)
Also found in: Acronyms.

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.

IPsec

(IP SECurity) A security protocol from the IETF that provides authentication and encryption over the Internet. Unlike SSL, which provides services at layer 4 and secures two applications, IPsec works at layer 3 and secures everything in the network. Also unlike SSL, which is typically built into the Web browser, IPsec requires a client installation. IPsec can access both Web and non-Web applications, whereas SSL requires workarounds for non-Web access such as file sharing and backup.

IPsec is supported by IPv6. Since IPsec was designed for the IP protocol, it has wide industry support for virtual private networks (VPNs) on the Internet. See virtual private network, IKE, IPv6 and security protocol.
References in periodicals archive ?
ANVL IPSec is based on IETF RFC 2402 Authentication Header (AH) and RFC 2406 Encapsulating Security Payload (ESP) specifications.
Encapsulating Security Payload (ESP) Tunnel Mode -- This mode allows the highest level of security between gateways while the payload information and the original IP header is encrypted and encapsulated.
This patent was filed March 1, 2004, and includes 51 claims to protect inventions related to VPSTN technologies, including automatic discovery of parties' capability to support VPSTN traffic, as well as the auto-initiation of encapsulated, compressed, and encrypted traffic, including VoIP-compatible encapsulating security payload," stated Mark Collier, SecureLogix CTO and vice president of engineering.
Inkra received certification for all three VPNC IPsec conformance tests, which require that its VPN gateway initiate an IPsec Encapsulating Security Payload (ESP) tunnel to each of two test gateways and successfully complete each conformance test as follows: