Cisco 7604 Configuration Manual page 716

Glossary
Protocol Independent Multicast. PIM provides a scalable method for determining the best paths for
PIM
distributing a specific multicast transmission to a group of hosts. Each host has registered using IGMP
to receive the transmission. See also PIM-SM.
Protocol Independent Multicast-Sparse Mode. With PIM-SM, which is the default for Cisco routers,
PIM-SM
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.
An ICMP
Ping
Private Internet eXchange. The Cisco PIX 500-series FWSMs range from compact, plug-and-play
PIX
desktop models for small/home offices to carrier-class gigabit models for the most demanding
enterprise and service provider environments. Cisco PIX FWSMs provide robust, enterprise-class
integrated network security services to create a strong multilayered defense for fast changing network
environments.
A standard for the transfer of PKI-related data, such as private keys, certificates, and other data.
PKCS12
Devices supporting this standard let administrators maintain a single set of personal identity
information.
PPTP
PNS
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
Lets you identify local traffic for address translation by specifying the source and destination
Policy NAT
addresses (or ports) in an access list.
Post Office Protocol. Protocol that client e-mail applications use to retrieve mail from a mail server.
POP
See
Pool
A field in the packet headers of
Port
is the source or destination of the packet.
Point-to-Point Protocol. Developed for dial-up
PPP
Point-to-Point Tunneling Protocol. PPTP was introduced by Microsoft to provide secure remote
PPTP
access to Windows networks; however, because it is vulnerable to attack, PPTP is commonly used
only when stronger security methods are not available or are not required. PPTP Ports are pptp,
1723/tcp, 1723/udp, and pptp. For more information about PPTP, see RFC 2637. See also PAC,
GRE,
Version 1 of GRE for encapsulating PPP traffic.
PPTP GRE
A tunnel defined by a
PPTP GRE tunnel
The tunnel carries
single tunnel. A control connection operating over
maintenance of sessions and of the tunnel itself.
PPTP
PPTP session
A session is created when end-to-end
The datagrams related to a session are sent over the tunnel between the
Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM
GL-14
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.
PPTP GRE tunnel, PNS,
PNS-PAC
PPP datagrams between the
is connection-oriented. The
TCP and UDP protocols that identifies the higher level service which
ISP access using analog phone lines and modems.
PPTP session, and PPTP TCP.
pair. The tunnel protocol is defined by a modified version of GRE.
PAC and the PNS. Many sessions are multiplexed on a
TCP controls the establishment, release, and
PNS and PAC maintain state for each user that is attached to a PAC.
PPP connection is attempted between a dial user and the PNS.
PPTP relies completely on TCP/IP and
PAC and PNS.
PPTP
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