TMS zl Management and Configuration Guide ST.1.1.100226

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Glossary
out-of-sequence
packets
An attack check performed by the TMS zl Module that drops packets that are
received out of order.
outbound
authentication
key
The manual authentication key that a remote device expects to receive from
a local device when establishing a VPN.
outbound
encryption key
The manual encryption key that a remote device expects to receive from a
local device when establishing a VPN.
P
packet flow The logical path of a packet through a device, such as the TMS zl Module.
PAP Password Authentication Protocol. A protocol used to authenticate a client
to a remote server or an Internet service provider. PAP transmits usernames
and passwords in unencrypted plaintext, making it unsecure. For more infor-
mation, see RFC 1334 at http://www.ietf.org/rfc/rfc1334.txt.
participant A member of an HA cluster that relies on the master to receive data.
passive mode A RIP V LAN mode in which the VLAN receives routing tables from other routers
but does not broadcast its own routing table.
passphrase A passphrase is a password that is used for authentication or encryption. A
passphrase is typically more complex than the average password.
PAT Port Address Translation. A type of destination NAT where the port is trans-
lated as well as (or instead of) the IP address.
path MTU See PMTU.
PCM+ ProCurve Manager Plus. The HP ProCurve network management platform.
PDU Protocol Data Unit. The unit that gives the protocol control information,
either the bit (Layer 1), the frame (Layer 2), the packet (Layer 3), the segment
(Layer 4) or the data (all other layers).
peer In VPNs, the peers are the two ends of the VPN tunnel.
peer ID The identifier of the remote router in a site-to-site VPN. Generally the peer ID
is the IP address of the router on the interface through which the VPN is
established.