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Cisco PIX Firewall and VPN Configuration Guide
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Appendix A Acronyms and Abbreviations
IFP Internet Filtering Protocol.
IGMP Internet Group Management Protocol.
IGRP Interior Gateway Routing Protocol.
IKE Internet Key Exchange.
IKMP Internet Key Management Protocol.
IP Internet Protocol.
IPCP IP Control Protocol. Protocol that establishes and configures IP over PPP.
IPinIP IP-in-IP encapsulation protocol.
IPSec IP Security Protocol efforts in the IETF (Internet Engineering Task Force).
IRC Internet Relay Chat protocol—The protocol that lets users access chat rooms.
ISAKMP Internet Security Association and Key Management Protocol.
ITU International Telecommunication Union.
IUA Individual User Authentication.
JTAPI Java TAPI.
KDC Key Distribution Center.
LSA link-state advertisement.
L2TP Layer Two Tunneling Protocol.
laddr Local address—The address of a host on a protected interface.
MGCP Media Gateway Control Protocol.
MD5 Message Digest 5—An encryption standard for encrypting VPN packets. This
same encryption is used with the aaa authentication console command to encrypt
Telnet sessions to the console.
MIB Management Information Base—Used with SNMP.
MPPE Microsoft Point-To-Point Encryption.
MS-CHAP Microsoft CHAP (Challenge Handshake Authentication Protocol). See “CHAP”
for more information.
MSRPC Microsoft Remote Procedure Call.
MTU maximum transmission unit—The maximum number of bytes in a packet that can
flow efficiently across the network with best response time. For Ethernet, the
default MTU is 1500 bytes, but each network can have different values, with serial
connections having the smallest values. The MTU is described in RFC 1191.
NAT Network Address Translation.
NBMA nonbroadcast multiaccess.
NetBIOS Network Basic Input Output System—An application programming interface
(API) that provides special functions for PCs in local-area networks (LANs).
NIC Network Information Center.
NNTP Network News Transfer Protocol—News reader service.
NOS Network Operating System.
Table A-1 Acronyms and Abbreviations (continued)
Acronym Description
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