| When
a computer is connected to Internet or any other network
(e.g. an enterprise network) it has its own IP address
which is a code name by which it is identified. When
you connect to Internet, your ISP (Internet Service
Provider, such as AOL) automatically and randomly
assigns you an IP address. Knowing your IP address
is useful if you need to make netmeetings or Internet
phone calls. In this case, the IP address is needed
to access the credit card payment form because it
certifies that who's doing the credit card payment
transaction is only your own personal computer. Otherwise,
if your Internet connection comes by a "proxy
server" or by ADSL/HDSL, your IP address may
be fixed.
Finding
your IP address is very simple following the instructions
below:
Web
tool
At the address http://www.taylor.org/~alx/cgi-bin/enviros.cgi
you can get a whole list of all the environmental
variables of your actual Internet connection; your
IP address is shown at the row "REMOTE_ADDR".
Windows
95/98/98se/ME
Click on "Start" and select the option "Run...".
In the field "Open" type "winipcfg"
to open the network connections parameters window.
Select the tab "PPP Adapter" to view
the modem connection parameters: here you will find
your IP address.
Windows
NT/2000/XP
Click
on "Start" and select the option "Run...".
In the field "Open" type "ipconfig
/all" to open the network connections parameters
window. Select the tab "PPP Adapter"
to view the modem connection parameters: here you
will find your IP address.
Linux/Unix
From the command prompt or shell window type the command
"ifconfig -a" to list all the open
connections of your system; the result will be a list
of all the network and modem connections including
a ppp0 if you are connected by a modem or a
eth[x] (or en[x] for Unix) where [x]
is an increasing number (e.g. 0, 1, 2, etc.) assigned
to each connection by the operative system. Once you
have found your Internet connection, the IP address
is shown at the row inet addr: (see examples
below).
eth0
Link encap:Ethernet HWaddr 00:33:54:78:AB:CF
inet
addr:155.190.0.1 Bcast:155.190.8.255 Mask:255.255.0.0
UP
BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX
packets:108406 errors:0 dropped:0 overruns:0 frame:0
TX
packets:2091 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
txqueuelen:100
RX
bytes:11645887 (11.1 Mb) TX bytes:1434302 (1.3 Mb)
Interrupt:10
Base address:0xcc00
ppp0
Link encap:Point-Point Protocol
inet
addr:155.190.0.1 P-t-P:155.190.8.1 Mask:255.255.0.0
UP
POINTOPOINT RUNNING MTU:1500 Metric:1
RX
packets:108406 errors:0 dropped:0 overruns:0 frame:0
TX
packets:2091 errors:0 dropped:0 overruns:0 carrier:0
WARNING!
All the instructions above must be made before the
credit card payment transaction when you are connected
to Internet and during the same session. If you are
using a proxy server (e.g. at your
company) or a fixed connection (e.g. ADSL, HDSL, ecc.)
you must ask your IP address to your network administrator
or your ISP.
You must always type the IP address including the
all three separating dots (e.g. 123.456.789.12).
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