User manual

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!CTIONTEC53"%THERNET$3,-ODEM5SER-ANUAL
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#HAPTER4ROUBLESHOOTING
#ONNECTIONS
(OWMANYCOMPUTERSCANBECONNECTEDTHROUGHTHE-ODEM
4HE-ODEMISCAPABLEOFCONNECTIONSBUTHAVINGNOMORETHANCONNEC
TIONSISRECOMMENDED!STHENUMBEROFCONNECTIONSINCREASESTHEAVAILABLE
SPEEDFOREACHCOMPUTERDECREASES
3ECURITY
7HATISTHEDEFAULTUSERNAMEFORTHE-ODEM
4HEDEFAULTUSERNAMEFORTHEROUTERISADMINALLLOWERCASE4OACTIVATETHE
PASSWORDTOPROTECTTHE-ODEMCHANGETHEDEFAULTPASSWORDWHICHISBLANKBY
DEFAULT2EMOTEMANAGEMENTISNOTAVAILABLEONTHE-ODEMUNTILTHEDEFAULT
PASSWORDISCHANGED
$OESTHE-ODEMFUNCTIONASAFIREWALL
9ES4HE-ODEMPROVIDESITSSECURITYTHROUGHTHEUSEOF.!4FIREWALLWHICHACTS
ASAPHYSICALBARRIERBETWEENYOURNETWORKANDTHE)NTERNET
7HATIS.!4ANDHOWDOESITPROTECTMYNETWORK
.!4.ETWORK!DDRESS4RANSLATIONISATYPEOFSECURITYTHATMASKSTHEPRIVATE)0
ADDRESSESOFTHECOMPUTERSONYOURNETWORKWITHASINGLEPUBLIC)0ADDRESS7ITH
.!4THEPRIVATE)0ADDRESSOFTHECOMPUTERSONYOURNETWORKISNEVERTRANSMIT
TEDOVERTHE)NTERNET
7HICH6IRTUAL0RIVATE.ETWORKING60.PROTOCOLSARESUPPORTED
4HE-ODEMSUPPORTSPASSTHROUGHFOR0040,40AND)03EC
#AN)USE)NTERNETFIREWALLORSECURITYPROGRAMSWITHMYNETWORK
"ECAUSETHE-ODEMUSES.!4FIREWALLSECURITYITISNOTNECESSARYTOUSEANYOTHER
PROGRAMFORSECURITY4HEUSEOFTHIRDPARTYFIREWALLOR)NTERNETSECURITYSOFTWARE
ISNOTRECOMMENDEDSINCECERTAINPROGRAMSCREATEPROBLEMSONAPRIVATENETWORK
"LACK)CE$EFENDER.ORTON)NTERNET3ECURITYAND:ONE!LARMFOREXAMPLE