Avaya Configuring Integrated IP Security Manual de usuario descargar pdf (Pagina 22)

Configuring IP Security Services

1-4

304111-A Rev 00

Security Protocols Overview

IPsec uses two protocols to provide traffic security:

• Encapsulating Security Payload (ESP)

• Authentication Header (AH)

You can use either protocol or both to protect data packets on a VPN.

Encapsulating Security Payload

The ESP protocol provides confidentiality (encryption) services. It can also

provide data integrity, data origin authentication, and an anti-replay service. One

or more of these security services must be applied whenever ESP is invoked.

ESP uses the Data Encryption Standard (DES) algorithm for encryption and

Hashing Message Authentication Code Message Digest 5 (HMAC MD5)

transform identifiers. For more information about DES, see “Security Protocols”

on page 2-9.

Authentication Header

The AH protocol provides data integrity, data origin authentication, and optional

anti-replay services.

The AH protocol uses HMAC MD5 transform identifiers.

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 71 72

Sin comentarios

Avaya Configuring Integrated IP Security Manual de usuario Pagina 22