Introduction to the Raven XE
With the Raven XE 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 Raven XE will provide NAT for a range of computers or other devices connected to the switch or hub and 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 Raven XE might not always receive the same address each time it connects with your cellular provider.
•Static addresses are permanently assigned to a particular account and will always be used whenever your Raven XE 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 your cellular provider includes a dynamic IP address and you need a static IP, please consult your your cellular provider Representative for more information about changing your account for static IP support.
If you need to contact your Raven XE, a device connected to the Raven XE, or a host system using the Raven XE from the Internet, you need to have a known IP (such as one which is static) or domain name (an IP address which is converted by a DNS server into a word based name). If you have a dynamic IP address for your modem, you can use a Dynamic DNS service (such as IP Manager) to translate your IP address into to a domain name.
Caution: If you want to connect remotely to your Raven XE using TCP/IP, the IP address given to your modem by your cellular provider cannot be a private or internal IP address (such as a special private network) unless you are on the same network or inside that network’s firewall (such as with frame relay).
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