Sierra Wireless RAVEN 20070914 User Manual Page 66

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Data Communication and Host Modes
Rev 3.0B Feb.08 61
Data Communication
Note: The Raven forwards
messages to and from the
cellular network for only ONE
device per port. The Raven is a
one-to-one gateway and does
not have advanced routing
features required to do one-to-
many routing.
TheprimarypurposeoftheRavenistoforwarddatafroma
singledeviceconnectedtooneoftheportstothecellular
networkand,ultimately,undermostcircumstances,tothe
Internetinaonetoonegatewayconfiguration.
WhentheRavenobtainsitsIPaddressfromTELUS,italso
obtainsthenetworkroutinginformationnecessarytoforward
messagestotheirrouterswhichcanthenforwardonfrom
there.TheRaventhenactsasarouterforthedeviceconnected
toit,forwardingtoorfromthecellularnetwork.
Public and Private Mode
InPublicMode,theRavenwillpasstheIPaddressassignedby
thecellularnetworktothedeviceconnectedtoitsport.Public
ModeisthedefaultmodefortheRaven.
Ifyouneedmorecontroloverwhichgatewayaddress,device
address,andnetmaskthatisgivenoutbytheinternalDHCP
server,youcanusetheprivatehostmode,*HOSTPRIVMODE,
andsettheinternalnetworkIPaddresses.TheRavenwilluse
NAT toforwardpacketstotheenddevice.
Tip: When using Public mode, Sierra Wireless recommends
connecting the modem directly to the computer or other end device.
Using a hub or switch may prevent the Raven from updating the IP
address of the end device when an IP address is received from the
cellular network.
InAceManager,thePrivatemodesettingsarepartofthePPP/
Ethernetgroup.
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