User guide

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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 Network.
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 sin-
gle 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 mes-
sage 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 charac-
ters.
Pre-Shared Key Type. The Pre-Shared Key Type classifies the Pre-Shared
Key. SafeHarbour supports
ASCII or HEX types
protocol. Formal set of rules and conventions that specify how information
can be exchanged over a network.
PSTN. Public Switched Telephone Network.
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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.