SMC Networks Barricade SMC2404WBR User Manual page 131

allowing you to change internal IP addresses without affecting outside access to your network. NAT must be enabled to
provide multi-user access to the Internet or to use the Virtual Server function.
Packet Binary Convulational Code(tm) (PBCC) - A modulation technique developed by Texas Instruments Inc. (TI) that
offers data rates of up to 22Mbit/s and is fully backward compatible with existing 802.11b wireless networks.
PCI - Peripheral Component Interconnect - Local bus for PCs from Intel that provides a high-speed data path between the
CPU and up to 10 peripherals (video, disk, network, etc.). The PCI bus runs at 33MHz, supports 32-bit and 64-bit data
paths, and bus mastering.
PPPoE - Point-to-Point Protocol over Ethernet. Point-to-Point Protocol is a method of secure data transmission originally
created for dial-up connections. PPPoE is for Ethernet connections.
Roaming - A function that allows your to move through a particular domain without losing network connectivity.
Static IP - If your Service Provider has assigned a fixed IP address; enter the assigned IP address, subnet mask and the
gateway address provided by your service provider.
Subnet Mask - A subnet mask, which may be a part of the TCP/IP information provided by your ISP, is a set of four
numbers configured like an IP address. It is used to create IP address numbers used only within a particular network (as
opposed to valid IP address numbers recognized by the Internet.
TCP/IP - Transmission Control Protocol/Internet Protocol. This is the standard protocol for data transmission over the
Internet.
TCP - Transmission Control Protocol - TCP and UDP (User Datagram Protocol) are the two transport protocols in TCP/IP.
TCP ensures that a message is sent accurately and in its entirety. However, for real-time voice and video, there is really no
time or reason to correct errors, and UDP is used instead.
UDP - User Datagram Protocol - A protocol within the TCP/IP protocol suite that is used in place of TCP when a reliable
delivery is not required. For example, UDP is used for real-time audio and video traffic where lost packets are simply
ignored, because there is no time to retransmit. If UDP is used and a reliable delivery is required, packet sequence
checking and error notification must be written into the applications.