Cisco OL-4015-08 User Manual page 665

physical interface
ping
PKCS7
PKI
plaintext
posture
PPP
PPPoA
PPPoE
OL-4015-08
A router interface supported by a network module that is installed in the router
chassis, or that is part of the router's basic hardware.
An ICMP request sent between hosts to determine whether a host is accessible
on the network.
Public Key Cryptography Standard No. 7.
public-key infrastructure. A system of certification authorities (CAs) and
registration authorities (RAs) that provides support for the use of asymmetric
key cryptography in data communication through such functions as certificate
management, archive management, key management, and token management.
Alternatively, any standard for the exchange of asymmetric keys.
This type of exchange allows the recipient of a message to trust the signature in
that message, and allows the sender of a message to encrypt it appropriately for
the intended recipient. See key management.
Ordinary, unencrypted data.
In a NAC implementation, the condition of a host attempting access to the
network. Posture agent software running on the host communicates with the
NAD to report on the host's compliance with the network security policy.
Point-to-Point Protocol. A protocol that provides router-to-router, and
host-to-network connections over synchronous and asynchronous circuits. PPP
has built in security mechanisms, such as CHAP and PAP.
Point-to-Point Protocol over Asynchronous Transfer Mode (ATM). Primarily
implemented as part of ADSL, PPPoA relies on RFC1483, operating in either
Logical Link Control-Subnetwork Access Protocol (LLC-SNAP) or VC-Mux
mode.
Point-to-Point Protocol over Ethernet. PPP encapsulated in Ethernet frames.
PPPoE enables hosts on an Ethernet network to connect to remote hosts through
a broadband modem.
Cisco Router and Security Device Manager Version 2.2 User's Guide
Glossary
GL-23