Port Forwarding - US Robotics Instant802 APSDK Administrator's Manual

Professional Access Point
Administrator Guide
the fork() system call. It can be used by wait() or kill() to perform actions on the given process.

Port Forwarding

Port Forwarding creates a 'tunnel' through a firewall, allowing users on the Internet access to a service
running on one of the computers on your LAN, for example, a Web server, an FTP or SSH server, or other
services. From the outside user's point of view, it looks like the service is running on the firewall.
PPP
The Point-to-Point Protocol is a standard for transmitting network layer datagrams (IP packets) over serial
point-to-point links. PPP is designed to operate both over asynchronous connections and bit-oriented
synchronous systems.
PPPoE
Point-to-Point Protocol over Ethernet (PPPoE) is a specification for connecting the users on a LAN to the
Internet through a common broadband medium, such as a single DSL or cable modem line.
PPtP
Point-to-Point Tunneling Protocol (PPtP) is a technology for creating a Virtual Private Network (VPN)
within the Point-to-Point Protocol (PPP). It is used to ensure that data transmitted from one VPN node to
another are secure.
Proxy
A proxy is server located between a client application and a real server. It intercepts requests, attempting
to fulfill them itself. If it cannot, it forwards them to the real server. Proxy servers have two main purposes:
improve performance by spreading requests over several machines and filter requests to prevent access
to specific servers or services.
PSK
Pre-Shared Key (PSK), see Shared Key.
Public Key
A public key is used in public key cryptography to encrypt a message which can only be decrypted with the
recipient's private or secret key. Public key encryption is also called asymmetric encryption, because it
uses two keys, or Diffie-Hellman encryption. Also see Shared Key.
Q
QoS
Quality of Service (QoS) defines the performance properties of a network service, including guaranteed
throughput, transit delay, and priority queues. QoS is designed to minimize Latency, Jitter, Packet Loss,
and network congestion, and provide a way of allocating dedicated bandwidth for high priority network
traffic.
The IEEE standard for implementing QoS on wireless networks is currently in-work by the 802.11e task
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