Intellinet 525688 - Page 96

93

Port:Networkclients(LANPC)usesportnumberstodistinguishonenetwork
application/protocolfromanother.Belowisalistofcommonapplicationsand
protocol/portnumbers:

Application ProtocolPortNumber
Telnet TCP 23
FTP TCP 21
SMTP TCP 25
POP3 TCP 110
H.323 TCP 1720
SNMP UCP 161
SNMPTrap UDP 162
HTTP TCP 80
PPTP TCP 1723
PCAnywhereTCP 5631
PCAnywhereUDP 5632

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(e.g.,255.255.255.0)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,whichmustbeassignedbyInterNIC).

TCP/IP,UDP:TransmissionControlProtocol/InternetProtocol(TCP/IP)and
UnreliableDatagramProtocol(UDP).TCP/IPisthestandardprotocolfordata
transmissionovertheInternet.BothTCPandUDParetransportlayer
protocol.TCPperformspropererrordetectionanderrorrecovery,
andthusis
reliable.UDP,ontheotherhand,isnotreliable.TheybothrunontopoftheIP
(InternetProtocol),anetworklayerprotocol.

WAN:WideAreaNetwork.Anetworkthatconnectscomputerslocatedin
geographicallyseparateareas(e.g.,differentbuildings,cities,countries).The
Internetisawide
areanetwork.

Web‐basedManagementGraphicalUserInterface(GUI):Manydevices
supportagraphicaluserinterfacethatisbasedontheWebbrowser.This
meanstheusercanusethefamiliarNetscapeorMicrosoftInternetExplorer
tocontrol/configureormonitorthedevicebeingmanaged.