Connecting To Verizon; Steps Of A Connection; Dynamic Vs. Static Ip Addresses - Sierra Wireless AirLink GX400 User Manual

AirLink GX400
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Connecting to Verizon

The AirLink GX400 uses Verizon as an ISP (Internet Service Provider) to connect
you to the Internet.

Steps of a Connection:

1. When your AirLink GX400 is powered on, it automatically searches for
cellular service using CDMA-based cellular technology.
2. Your AirLink GX400 establishes a PPP (Point-to-Point Protocol or "dial" up
connection) link to the Verizon network, also called registering on the
network, and receives an IP address.
3. When your AirLink GX400 has received its IP address from Verizon, a
connection to the Internet or the cellular network is also available for
computers or other devices connected directly to the AirLink GX400.
The AirLink GX400 will perform routing for all internet traffic to and from the
computers or other end devices.
With the AirLink GX400 in Ethernet Public mode, only one device connected to
the Ethernet port will receive the public IP address which is the one provided by
the cellular network. In Ethernet Private mode, with a hub or switch connected to
the Ethernet port, the AirLink GX400 will provide NAT (network address
translation) for a range of computers or other devices connected to the switch or
hub and allows Internet access to all of them.

Dynamic vs. Static IP Addresses

There are two types of addresses on networks: dynamic and static.
• Dynamic addresses are assigned on a "need to have" basis. Your AirLink
GX400 might not always receive the same address each time it connects with
Verizon.
• Static addresses are permanently assigned to a particular account and will
always be used whenever your AirLink GX400 connects to the Internet. The
IP address will not be given to anyone else.
Most ISPs (cellular included) use dynamic IP addresses rather than static IP
addresses since it allows them to reuse a smaller number of IP addresses for a
large number of customers. A dynamic IP address is suitable for many common
Internet uses, such as web browsing, looking up data on another computer
system, or other client functions (such as data only being sent out or only being
received after an initial request).
Tip: If your account with Verizon includes a dynamic IP address and you need a static IP,
please consult your Verizon Representative for more information about changing your
account for static IP support.
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