Motorola WPS870G User Manual download pdf (Page 112)

User Guide WPS870G

PAGE 105

Subnet Mask

A methodology that determines what the router will examine for

the destination of an IP address. A router delivers packets using

the network address.

Switch

On an Ethernet network, a switch filters frames based on the

MAC address, in a manner similar to a bridge. A switch is more

advanced because it can connect more than two segments.

TCP

Transmission Control Protocol on OSI Transport Layer 4 provides

reliable transport over the network for data transmitted using IP

(network layer three). It is an end-to-end protocol defining rules

and procedures for data exchange between hosts on top of

connectionless IP. TCP uses a timer to track outstanding packets,

checks error in incoming packets, and retransmits packets if

requested.

TCP/IP

The Transmission Control Protocol/Internet Protocol suite

provides standards and rules for data communication between

networks on the Internet. It is the worldwide Internetworking

standard and the basic communications protocol of the Internet.

Tunnel

To place packets inside other packets to send over a network.

The protocol of the enclosing packet is understood by each

endpoint, or tunnel interface, where the packet enters and exits

the network. VPNs rely on tunneling to create a secure network.

Tunneling requires the following protocol types:

 A carrier protocol, such as TCP, used by the network that the

data travels over

 An encapsulating protocol, such as IPSec, L2F, L2TP, or

PPTP, that is wrapped around the original data

 A passenger protocol, such as IP, for the original data

UDP

User Datagram Protocol. A method used along with the IP to

send data in the form of message units (datagram) between

network devices over a LAN or WAN.

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Motorola WPS870G User Manual Page 112