Lucent Technologies PortMaster Manual Do Utilizador

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Networking Concepts
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This chapter describes general network concepts that you must understand before you 
configure your PortMaster. 
This chapter discusses the following topics:
See the PortMaster Routing Guide for information on routing and how Lucent’s ComOS 
implements routing protocols. See the glossary for unfamiliar terms.
Network Addressing
PortMaster products support packet routing using both IP and IPX protocols. The 
Internet Protocol (IP) is a packet-based protocol used to exchange data over computer 
networks. IP provides addressing and control information that allows data packets to be 
routed across networks.
Novell Internetwork Packet Exchange (IPX) is another protocol used to exchange data 
over PC-based networks. IPX uses Novell’s proprietary Service Advertising Protocol 
(SAP) to advertise special services such as print and file servers.
IP Addressing
IP address descriptions are found in RFC 1166, Internet Numbers. Refer to “Additional 
References” in the preface for more information. The Internet Network Information 
Center (InterNIC) maintains and distributes the RFC documents. The InterNIC also 
assigns IP addresses and network numbers to Internet Service Providers (ISPs), who in 
turn provide to their customers a range of addresses appropriate to the number of host 
devices on their network. 
The sections that follow describe the various types of IP addresses, how addresses are 
given, and routing issues related to IP.