Motorola 3342, 7000, 3352N, 2200 manual 338

Administrator’s Handbook

-----P-----

packet. Logical grouping of information that includes a header and data. Compare frame, datagram.

PAP. Password Authentication Protocol. Security protocol within the PPP protocol suite that prevents unau- thorized access to network services. See RFC 1334 for PAP specifications. Compare CHAP.

parity. Method of checking the integrity of each character received over a communication channel.

Peer External IP Address. The Peer External IP Address is the public, or routable IP address of the remote gateway or VPN server you are establishing the tunnel with.

Peer Internal IP Network. The Peer Internal IP Network is the private, or Local Area Network (LAN) address of the remote gateway or VPN Server you are communicating with.

Peer Internal IP Netmask. The Peer Internal IP Netmask is the subnet mask of the Peer Internal IP Net- work.

PFS Enable. Enable Perfect Forward Secrecy. PFS forces a DH negotiation during Phase II of IKE-IPSec SA exchange. You can disable this or select a DH group 1, 2, or 5. PFS is a security principle that ensures that any single key being compromised will permit access to only data protected by that single key. In PFS, the key used to protect transmission of data must not be used to derive any additional keys. If the key was derived from some other keying material, that material must not be used to derive any more keys.

PING. Packet INternet Groper. Utility program that uses an ICMP echo message and its reply to verify that one network node can reach another. Often used to verify that two hosts can communicate over a network.

PPP.Point-to-Point Protocol. Provides a method for transmitting datagrams over serial router-to-router or host-to-network connections using synchronous or asynchronous circuits.

Pre-Shared Key. The Pre-Shared Key is a parameter used for authenticating each side. The value can be an ASCII or Hex and a maximum of 64 characters.

Pre-Shared Key Type. The Pre-Shared Key Type classifies the Pre-Shared Key. SafeHarbour supports ASCII or HEX types

Priority queueing. Priority queueing (PQ) manages bandwidth resources on a network Gateway. It makes sure that prioritized data packets, such as streaming video or Voice-over-IP, are forwarded with the least possible delay. All other traffic is handled when the highest priority queue is empty.

protocol. Formal set of rules and conventions that specify how information can be exchanged over a net- work.

PSTN. Public Switched Telephone Network.

-----Q-----

QoS. Quality of Service. The ability of a network to prioritize certain kinds of network traffic to provide reserved bandwidth and reduced latency needed by some real-time and interactive traffic such as voice and video over IP. QoS also provides priority for one or more flows, such that one flow does not make other flows fail.

338