JDSU NT850 Betriebsanweisung PDF herunterladen (Seite 99)

Appendix A Glossary of Network Terms and Internet Protocols

Internet Protocol Definitions

LanScaperPRO Network Tester User’s Guide 83

tion to the target device across the WAN. This typically

puts the communications on the internet, but may also be

another LAN subnet, or a private network of some other

type. A router has an IP address and MAC address (on

Ethernet) of its own for direct communications, which

differentiates it from a hub or switch. A hardware box sold

as a router will usually include a hub or switch chip inside,

providing a convenient connection point for multiple

Ethernet devices.

Target

In the Ping protocol, an IP address must be selected to

receive an echo request. This address is the "target"

address for that Ping. In the LanScaperPRO, a target

must be selected manually on the Ping Mode screen. This

target can be on the LAN, or anywhere else accessible

through a router connected to the LAN. If the target is not

on the LAN, the router IP address must be known so the

Ping can be sent to the router which forwards it on toward

the ultimate location.

TCP/IP (Transmission Control Protocol/Internet Protocol)

See “IP (Internet Protocol)” on page 81.

WAN (Wide Area Network)

The "remote" interface on a router. The WAN may be

accessed via a DSL line, broadband cable connection,

ISDN, T1 line, or even a dial-up modem line. This term

used to loosely define the hardware path used to commu-

nicate with any IP-addressed device not on the local LAN.

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JDSU NT850 Betriebsanweisung Seite 99