Cisco ASA Series Cli Configuration Manual page 18

Glossary
PFS
Perfect Forwarding Secrecy. PFS enhances security by using a different security key for the
Phase 1 and Phase 2 SAs. Without PFS, the same security key is used to establish SAs in both phases.
PFS ensures that a given
In other words, if someone were to break a key, PFS ensures that the attacker would not be able to
derive any other key. If PFS were not enabled, someone could hypothetically break the
key, copy all the
the IPsec SA
access to IPsec. The attacker would have to break each
Phase 1
See
Phase 2
See
PIM
Protocol Independent Multicast. PIM provides a scalable method for determining the best paths for
distributing a specific multicast transmission to a group of hosts. Each host has registered using IGMP
to receive the transmission. See also PIM-SM.
PIM-SM
Protocol Independent Multicast-Sparse Mode. With PIM-SM, which is the default for Cisco routers,
when the source of a multicast transmission begins broadcasting, the traffic is forwarded from one MC
router to the next, until the packets reach every registered host. See also PIM.
ping
An ICMP
PIX
Private Internet eXchange. The Cisco PIX 500 series ASAs ranged from compact, plug-and-play
desktop models for small/home offices to carrier-class gigabit models for the most demanding
enterprise and service provider environments. Cisco PIX ASAs provided robust, enterprise-class
integrated network security services to create a strong multilayered defense for fast changing network
environments. The PIX has been replaced by the Cisco ASA 5500 series.
PKCS12
A standard for the transfer of PKI-related data, such as private keys, certificates, and other data.
Devices supporting this standard let administrators maintain a single set of personal identity
information.
PNS
PPTP
platforms. The PNS handles the server side of PPTP. Because
is independent of the interface hardware, the PNS may use any combination of IP interface hardware
including
Policy NAT
Lets you identify local traffic for address translation by specifying the source and destination
addresses (or ports) in an access list.
POP
Post Office Protocol. Protocol that client e-mail applications use to retrieve mail from a mail server.
Pool
See
Port
A field in the packet headers of
is the source or destination of the packet.
PPP
Point-to-Point Protocol. Developed for dial-up
PPPoE
Point-to-Point Protocol over Ethernet. An IP protocol that encapsulates
over a local network or the internet to establish a connection to a host, usually between a client and
an ISP.
Cisco ASA Series CLI Configuration Guide
GL-14
IPsec SA
IPsec protected data, and then use knowledge of the
setup by this IKE
IPsec Phase 1.
IPsec Phase 2.
request sent by a host to determine if a second host is accessible.
Network Server. A PNS is envisioned to operate on general-purpose computing/server
LAN and WAN devices.
IP pool.
key was not derived from any other secret (like some other keys).
SA. With PFS, breaking IKE
IPsec SA
TCP and UDP protocols that identifies the higher level service which
ISP access using analog phone lines and modems.
IKE SA
IKE SA secret to compromise
would not give an attacker immediate
individually.
PPTP relies completely on TCP/IP and
PPP packets and sends them
IPsec
secret