Data communication, Public and private mode – Sierra Raven EDGE User Manual

Page 51

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Data Communication and Host Modes

Rev 3.0B Feb.08

47

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.

The primary purpose of the Raven is to forward data from a 
single device connected to one of the ports to the cellular 
network and, ultimately, under most circumstances, to the 
Internet in a one‐to‐one gateway configuration. 

When the Raven obtains its IP address from your cellular 
provider, it also obtains the network routing information 
necessary to forward messages to their routers which can then 
forward on from there. The Raven then acts as a router for the 
device connected to it, forwarding to or from the cellular 
network.

Public and Private Mode

In Public Mode, the Raven will pass the IP address assigned by 
the cellular network to the device connected to its port. Public 
Mode is the default mode for the Raven.

If you need more control over which gateway address, device 
address, and netmask that is given out by the internal DHCP 
server, you can use the private host mode, *HOSTPRIVMODE, 
and set the internal network IP addresses. The Raven will use 
NAT to forward packets to the end device. 

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.

In AceManager, the Private mode settings are part of the PPP/
Ethernet
 group.

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