AirLink Communications Raven X HSDPA Guía de usuario Pagina 12

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Introduction to the Raven XE
Rev 2.0 Jul.09 5
Figure 1-4: Connecting to the Internet
TheRavenXEwillperformaonetooneroutingforall
internettraffictoandfromthecomputerorotherenddevice.
OnetoonemeansthatyourRavenXEwillprovidea
connectionforonedevicetotheInternetatatime.InPrivate
Mode,theRaven XEwill
provideNAT(NetworkAddress
Translation)forthecomputerorotherenddevice.
Note: The Raven XE 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 XE, 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.
Dynamicaddressesareassignedona“needtohave”basis.
YourRavenXEmightnotalwaysreceivethesameaddress
eachtimeitconnectswithyourcellularprovided.
Staticaddressesarepermanentlyassignedtoaparticular
accountandwillalwaysbeusedwheneveryourRavenXE
connectstotheInternet.TheIPaddresswillnotbegiven
toanyoneelse.
MostISPs(cellularincluded)usedynamicIPaddressesrather
thanstaticIPaddressessinceitallowsthemtoreuseasmaller
numberofIPaddressesforalargenumberofcustomers.A
dynamicIPaddressissuitableformanycommonInternet
uses,suchaswebbrowsing,lookingupdataonanother
computersystem,orotherclientfunctions(suchasdataonly
beingsentoutoronlybeingreceivedafteraninitialrequest).
RavenXE
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