Introduction to the Raven XE
Rev 1.0 Oct.09
5
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).
