Sierra Raven EDGE Uživatelská příručka Strana 20

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Introduction to the Raven X
Rev 1.0C Jul.09 14
Figure 1-8: Connecting to the Internet
TheRavenXwillperformaonetooneroutingforallinternet
traffictoandfromthecomputerorotherenddevice.Oneto
onemeansthatyourRavenXwillprovideaconnectionforone
devicetotheInternetatatime.InPrivateMode,theRavenX
will
provideNAT(NetworkAddressTranslation)forthe
computerorotherenddevice.
Note: The Raven X does not provide advanced routing required by
one-to-many (several devices connected to one port). If you need to
have more than one device connected to the Internet through your
Raven X, you will need to have a router connected to the modem. The
modem would provide the one-to-one connection to the router with the
router configured to provide a broader NAT service to the other
devices connected to it.
Dynamic vs. Static IP Addresses
Therearetwotypesofaddressesonnetworks:dynamicand
static.
Dynamicaddressesare assignedona“needtohave”basis.
YourRavenXmightnotalwaysreceivethesameaddress
eachtimeitconnectswithyourcellularNetwork.
Staticaddressesarepermanentlyassignedtoaparticular
accountandwillalwaysbeusedwheneveryourRavenX
connectstotheInternet.TheIPaddresswillnotbegiven
toanyoneelse.
MostISPs(cellularincluded)usedynamicIPaddressesrather
thanstaticIPaddressessinceitallowsthemtoreuseasmaller
numberofIPaddressesforalargenumberofcustomers.A
dynamicIPaddressissuitableformanycommonInternet
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