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107
10
255.255.255.192 (/26)
1024
62
11
255.255.255.224 (/27)
2048
30
12
255.255.255.240 (/28)
4096
14
13
255.255.255.248 (/29)
8192
6
14
255.255.255.252 (/30)
16384
2
15
255.255.255.254 (/31)
32768
1
Configuring IP Addresses
Where you obtain your network number depends on your particular situation. If the ISP or your network administrator
assigns you a block of registered IP addresses, follow their instructions in selecting the IP addresses and the subnet mask.
If the ISP did not explicitly give you an IP network number, then most likely you have a single user account and the ISP will
assign you a dynamic IP address when the connection is established. If this is the case, it is recommended that you select
a network number from 192.168.0.0 to 192.168.255.0. The Internet Assigned Number Authority (IANA) reserved this block
of addresses specifically for private use; please do not use any other number unless you are told otherwise. You must also
enable Network Address Translation (NAT) on the VFG.
Once you have decided on the network number, pick an IP address for your VFG that is easy to remember (for instance,
192.168.10.1) but make sure that no other device on your network is using that IP address.
The subnet mask specifies the network number portion of an IP address. Your VFG will compute the subnet mask
automatically based on the IP address that you entered. You don't need to change the subnet mask computed by the VFG
unless you are instructed to do otherwise.
Private IP Addresses
Every machine on the Internet must have a unique address. If your networks are isolated from the Internet (running only
between two branch offices, for example) you can assign any IP addresses to the hosts without problems. However, the
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Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of IP addresses specifically for private
networks:
•
10.0.0.0
—
10.255.255.255
•
172.16.0.0
—
172.31.255.255
•
192.168.0.0
—
192.168.255.255
You can obtain your IP address from the IANA, from an ISP, or it can be assigned from a private network. If you belong to a
small organization and your Internet access is through an ISP, the ISP can provide you with the Internet addresses for your
local networks. On the other hand, if you are part of a much larger organization, you should consult your network
administrator for the appropriate IP addresses.
Regardless of your particular situation, do not create an arbitrary IP address; always follow the guidelines above. For more
information on address assignment, please refer to RFC 1597,
Address Allocation for Private Internets
and RFC 1466,
Guidelines for Management of IP Address Space.
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109
Appendix C
Setting up Your Computer’s IP
Address
All computers must have a 10M or 100M Ethernet adapter card and TCP/IP installed.
Windows 95/98/Me/NT/2000/XP, Macintosh OS 7 and later operating systems and all versions of UNIX/LINUX include the
software components you need to install and use TCP/IP on your computer. Windows 3.1 requires the purchase of a
third-party TCP/IP application package.
TCP/IP should already be installed on computers using Windows NT/2000/XP, Macintosh OS 7 and later operating
systems.
After the appropriate TCP/IP components are installed, configure the TCP/IP settings in order to "communicate" with your
network.
If you manually assign IP information instead of using dynamic assignment, make sure that your computers have IP
addresses that place them in the same subnet as the Prestige‘s LAN port.
Windows 95/98/Me
Click
Start
,
Settings
,
Control Panel
and double-click the
Network
icon to open the
Network
window.
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110
Figure 141
WIndows 95/98/Me: Network: Configuration
Installing Components
The
Network
window
Configuration
tab displays a list of installed components. You need a network adapter, the TCP/IP
protocol and Client for Microsoft Networks.
If you need the adapter:
1
In the
Network
window, click
Add
.
2
Select
Adapter
and then click
Add
.
3
Select the manufacturer and model of your network adapter and then click
OK
.
If you need TCP/IP:
1
In the
Network
window, click
Add
.
2
Select
Protocol
and then click
Add
.
3
Select
Microsoft
from the list of
manufacturers
.
4
Select
TCP/IP
from the list of network protocols and then click
OK
.
If you need Client for Microsoft Networks:
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111
1
Click
Add
.
2
Select
Client
and then click
Add
.
3
Select
Microsoft
from the list of manufacturers.
4
Select
Client for Microsoft Networks
from the list of network clients and then click
OK
.
5
Restart your computer so the changes you made take effect.
Configuring
1
In the
Network
window
Configuration
tab, select your network adapter's TCP/IP entry and click
Properties
2
Click the
IP Address
tab.
•
If your IP address is dynamic, select
Obtain an IP address automatically
.
•
If you have a static IP address, select
Specify an IP address
and type your information into the
IP Address
and
Subnet Mask
fields.
Figure 142
Windows 95/98/Me: TCP/IP Properties: IP Address
3
Click the
DNS
Configuration tab.
•
If you do not know your DNS information, select
Disable DNS
.
•
If you know your DNS information, select
Enable DNS
and type the information in the fields below (you may not need
to fill them all in).
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