sadam20
28-02-2012, 17:12
ياريت مساعدة من متخصص السيكيورتى فى معنى الفقره دى
Extensible Authentication Protocol (EAP
EAP is the transport mechanism used in 802.1x to authenticate supplicants against a backend
data store, typically a RADIUS server. EAP was initially defined in RFC 2284 as a general
authentication framework running over Layer 2 Point-to-Point Protocol (PPP). In RFC
3748, the EAP definition has been updated to include IEEE 802 as a link layer. The IEEE
802 encapsulation of EAP does not involve PPP, and IEEE 802.1X does not include support
for link or network layer negotiations. As a result, within IEEE 802.1X, it is not possible
to negotiate non-EAP authentication mechanisms, such as Password Authentication
Protocol (PAP) or Challenge Handshake Authentication Protocol (CHAP), without specialized
tunneling support. EAP does not select a specific authentication mechanism during
the link layer phase but rather postpones it until the authentication phase.
Extensible Authentication Protocol (EAP
EAP is the transport mechanism used in 802.1x to authenticate supplicants against a backend
data store, typically a RADIUS server. EAP was initially defined in RFC 2284 as a general
authentication framework running over Layer 2 Point-to-Point Protocol (PPP). In RFC
3748, the EAP definition has been updated to include IEEE 802 as a link layer. The IEEE
802 encapsulation of EAP does not involve PPP, and IEEE 802.1X does not include support
for link or network layer negotiations. As a result, within IEEE 802.1X, it is not possible
to negotiate non-EAP authentication mechanisms, such as Password Authentication
Protocol (PAP) or Challenge Handshake Authentication Protocol (CHAP), without specialized
tunneling support. EAP does not select a specific authentication mechanism during
the link layer phase but rather postpones it until the authentication phase.