Raven X HSUPA
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20080311
With the Raven X 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 X 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 X
might not always receive the same address each time it connects with Bell.
•
Static addresses are permanently assigned to a particular account and will
always be used whenever your Raven X 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 Bell includes a dynamic IP address and you need a static IP,
please consult your Bell Representative for more information about changing your account
for static IP support.
If you need to contact your Raven X, a device connected to the Raven X, or a host
system using the Raven X 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 X using TCP/IP, the IP address
given to your modem by Bell 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).
Communication
Many of the GSM Networks have been expanded to HSUPA.
HSUPA
HSUPA (High-Speed Uplink Packet Access) is a cellular technology which most
closely resembles a broadband synchronous connection. The upload and
download speeds are maximized to provide a faster throughput, reaching speeds
up to 2.0 Mbit/s for the uplink and 7.2 Mbit/s for the downlink.
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