Cisco ASA 5505 Configuration Manual page 1787

Point-to-Point Protocol over Ethernet. An IP protocol that encapsulates
PPPoE
over a local network or the internet to establish a connection to a host, usually between a client and
an ISP.
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
PAC. A session is created when an end-to-end
the PNS. The datagrams related to a session are sent over the tunnel between the
Standard
PPTP TCP
control session is logically associated with, but separate from, the sessions being tunneled through a
PPTP
A preshared key provides a method of
preshared key
static number of
for each pair of
be configured for every
a more scalable method of
The adaptive security appliance normally operating when two units, a primary and secondary, are
primary, primary
unit operating in failover mode.
The highest privilege level at the ASA CLI. Any user EXEC mode command will work in privileged
privileged EXEC
mode EXEC mode. The privileged EXEC mode prompt appears as follows after you enter the enable
command:
hostname> enable
hostname#
See also
A standard that defines the exchange of packets between network nodes for communication. Protocols
protocol, protocol
literals work together in layers. Protocols are specified in the adaptive security appliance configuration as part
of defining a security policy by their literal values or port numbers. Possible adaptive security
appliance protocol literal values are ahp, eigrp, esp, gre, icmp, igmp, igrp, ip, ipinip, ipsec, nos, ospf,
pcp, snp, tcp, and udp.
OL-20339-01
PPTP GRE tunnel, PNS, PPTP
PNS-PAC
PPP datagrams between the
is connection-oriented. The
TCP session over which
tunnel.
IPsec peers. This method is limited in scalability because the key must be configured
IPsec peers. When a new
IPsec peer with which it communicates. Using certificates and CAs provides
IKE authentication.
command-specific configuration
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 the state for each user that is attached to a
PPP connection is attempted between a dial-up user and
PPTP call control and management information is passed. The
IKE authentication that is suitable for networks with a limited,
IPsec peer is added to the network, the preshared key must
mode, global configuration
Cisco ASA 5500 Series Configuration Guide using ASDM
Glossary
PPP packets and sends them
PAC and PNS.
mode, user EXEC mode.
PPTP
GL-15