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EtherFast
®
Cable/DSL Router with QoS and 8-Port Switch
Instant Broadband
®
Series
86
Step Two: Pinging for a Web Address
While the IP address returned above would work as your e-mail server address,
it may not be permanent. IP addresses change all the time. Web addresses, how-
ever, usually don’t. Because of this, you’re likely to have fewer problems by
configuring your system with web addresses rather than IP addresses. Follow
the instructions below to find the web address assigned to the IP address you
just pinged.
1.
At the DOS command prompt
, type
ping -a 24.53.32.4
, where 24.53.32.4
is the IP address you just pinged. Information such as the following data
will be displayed.
C:\>ping -a 24.53.32.4
Pinging mail.msnv3.occa.home.com [24.53.32.4] with
32 bytes of data:
Reply from 24.53.32.4: bytes=32 time<10ms TTL=127
Reply from 24.53.32.4: bytes=32 time<10ms TTL=127
Reply from 24.53.32.4: bytes=32 time<10ms TTL=127
Reply from 24.53.32.4: bytes=32 time<10ms TTL=127
Ping statistics for 24.53.32.4:
Packets: Sent = 4, Received = 4, Lost = 0 (0%
loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum =
0ms, Average =
0ms
2.
Write down the web address returned by the ping command
(In the
example in Figure C-2:
mail.msnv3.occa.home.com
is the web address).
This web address is the web address assigned to the IP address you just
pinged. While the IP address of
mail
could conceivably change, it is likely
that this web address will not.
3.
Replace your ISP’s abbreviated server address
with this extended web
address in the corresponding Internet application (web browser, e-mail
application, etc.).
Once you have replaced the brief server address with the true server address,
the Router should have no problem accessing the Internet through that Internet
application.
Figure C-2
85
Step One: Pinging an IP Address
The first step to determining your ISP’s web and e-mail server address is to
ping its IP address.
1.
Power on the computer and the cable or DSL modem
, and restore the
network configuration set by your ISP if you have since changed it.
2.
Click Start
, then
Run,
and type
command
in the Open field. This will
bring up the DOS window.
3.
At the DOS command prompt
, type
ping mail
(assuming that the loca-
tion for which you’re trying to find an IP address is configured as
mail
).
Press
Enter
. Information such as the following data, taken from a ping of
Microsoft Network’s e-mail server, will be displayed.
C:\>ping mail
Pinging mail [24.53.32.4] with 32 bytes of data:
Reply from 24.53.32.4: bytes=32 time<10ms TTL=128
Reply from 24.53.32.4: bytes=32 time<10ms TTL=128
Reply from 24.53.32.4: bytes=32 time<10ms TTL=128
Reply from 24.53.32.4: bytes=32 time<10ms TTL=128
Ping statistics for 24.53.32.4:
Packets: Sent = 4, Received = 4, Lost = 0 (0%
loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum =
0ms, Average =
0ms
4.
Write down the IP address returned by the ping command
. (In the
example above: 24.53.32.4.) This IP address is the actual IP address of the
server
mail
, or any other word or value you have pinged.
Figure C-1
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Page 47 / 53
EtherFast
®
Cable/DSL Router with QoS and 8-Port Switch
Instant Broadband
®
Series
Appendix D: Installing the
TCP/IP Protocol
Follow these instructions to install the TCP/IP protocol on one of your PCs
only
after a network card (also called an Ethernet adapter) has been successfully
installed inside the PC. These instructions are for Windows 95, 98, and
Me.
For TCP/IP setup under Windows NT, 2000, and XP, see your Windows docu-
mentation or the Help feature.
1. Click the
Start
button. Choose
Settings
and then
Control Panel
.
2. Double-click on the
Network
icon to bring up your Network window.
Select the
Configuration
tab, as shown in Figure D-1.
3. Click the
Add
button
.
4. Double-click on
Protocol
.
5. Highlight
Microsoft
under the list of manufacturers.
6. Find and double-click
TCP/IP
in the list to the right (see Figure D-2).
7.
After a few seconds, the main Network window will appear.
The TCP/IP
Protocol should now be listed on the Configuration tab, as shown in Figure
D-3.
8. Click the
OK
button. Windows may ask for original Windows installation
files. Supply them as needed, e.g., c:\windows\options\cabs, D:\win98,
D:\win95 (where “D” is the letter of your CD-ROM drive).
9.
Windows will ask you to restart the PC. Click the
Yes
button.
TCP/IP installation is now complete.
88
Figure D-2
Figure D-3
87
Figure D-1
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EtherFast
®
Cable/DSL Router with QoS and 8-Port Switch
Instant Broadband
®
Series
Appendix E: Twisted-Pair
Cabling
There are different grades, or “categories,” of twisted-pair cabling. Category 5
is the most reliable and most highly recommended. Straight-through cables are
used for connecting computers to a hub. Crossover cables are used for con-
necting a hub to another hub (there is an exception: some hubs have a built-in
uplink port that is crossed internally; this allows you to link or connect hubs
together with a straight-through cable instead).
You can buy pre-made Category 5
cables, or cut and crimp your own.
Category 5 cables can be purchased or
crimped as either straight-through or
crossover. Inside a Category 5 cable
are eight thin, color-coded wires
inside that run from one end of the
cable to the other. All eight wires are
used. In a straight-through cable,
wires 1, 2, 3, and 6 at one end of the
cable are also wires 1, 2, 3, and 6 at
the other end. In a crossover cable, the
order of the wires change from one
end to the other: wire 1 becomes 3,
and 2 becomes 6. See Figures E-3 and
E-4 on the next page for
more detailed informa-
tion on straight-through
and crossover cabling.
To determine which wire is wire number 1, hold the cable
so that the end of the plastic RJ-45 tip (the part that goes
into a wall jack first) is facing away from you. Face the
clip down so that the copper side faces up (the springy clip
will now be parallel to the floor).
When looking down on
the copper side, wire 1 will be on the far left.
.
90
Crimping Your Own Network Cables
Straight-Through Cabling
Cross-Over Cabling
Figure E-3
Figure E-4
89
Figure E-1
Figure E-2
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EtherFast
®
Cable/DSL Router with QoS and 8-Port Switch
3. Write
down
the
Adapter Address as
shown on your com-
puter
screen
(see
Figure F-3).
This is
the MAC address for
your Ethernet adapter
and will be shown as
a series of numbers
and letters.
The MAC address/Adapter Address is what you will use for the Router’s
MAC Address Cloning or MAC Filtering.
The example in Figure F-3 shows the IP address of your Ethernet adapter
as 192.168.1.100. Your computer may show something different.
For Windows NT, 2000, and XP:
1. Click on
Start
and
choose
Run
. In the
Open
field,
enter
cmd
, as shown in
Figure F-4. Press the
Enter
key or click
the
OK
button.
Instant Broadband
®
Series
Appendix F: Finding the MAC
Address and IP Address for Your
Ethernet Adapter
This appendix describes how to find the MAC address for your Ethernet
adapter to do either MAC Filtering or MAC Address Cloning.
You can also
find the IP address of your computer’s Ethernet adapter.
The IP address is used
for filtering, forwarding, and DMZ hosting.
Find your Windows operating sys-
tem and follow the steps in this appendix to find the MAC address or IP address
for your adapter.
For Windows 95, 98, and Me:
1. Click
on
Start
and
choose
Run
. In the Open
field, type
winipcfg
, as
shown in Figure F-1.
Then, press the
Enter
key or click the
OK
but-
ton.
2. When
the
IP
Configuration
w
i
n
d
o w
appears, select
the
Ethernet
adapter that you
are
using,
as
shown in Figure
F-2.
92
Figure F-3
Figure F-4
Note
: The MAC address is also called the Adapter
Address in Windows 95, 98, and Me.
91
Figure F-1
Figure F-2
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EtherFast
®
Cable/DSL Router with QoS and 8-Port Switch
Enter the
12-digit MAC address
that you wrote down from the
Physical Address shown in Figure
F-5.
Make sure to type the 12 dig-
its
without the hyphens
into one
of the fields for MAC Filtering.
(See Figure F-6.)
Click on
Apply
when finished.
When entering information for MAC Address Cloning, type the
12-digit MAC
address
(see Figure F-7).
Click on
Apply
when finished.
Instant Broadband
®
Series
2. In the command prompt, enter
ipconfig /all
press the
Enter
key.
Your PC’s
information will be displayed as shown in Figure F-5.
3. Write down the Physical Address as shown on your computer screen; it is
the MAC address for your Ethernet adapter.
It will appear as a series of let-
ters and numbers.
The MAC address/Physical Address is what you will use for MAC Address
Cloning or MAC Filtering.
The example in Figure F-5 shows the IP address of your Ethernet adapter
as 192.168.1.100. Your computer may show something different.
94
Figure F-6
Figure F-7
93
Figure F-5
Note
: The MAC address is also called the Physical
Address in Windows NT, 2000, and XP.
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