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Windows 2000 ICS Host Installation
Before you install/configure ICS, I suggest
that you first install the network on all systems and verify,
that you have a working connection.
Then define your
Internet Connection, configure/verify the
connection and test the connection.
Then, right-click on your desktop on "My Network
Places" , select "Properties",
right-click on your Internet-connection and select again "Properties":

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tab: Shared Access
Section "Shared Access"
by definition, connections
are not shared.
To enable connection sharing,
place the checkmark on
"Enable shared access to this connection"
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activate the Sharing (place the
checkmark)
(note the warning above the
checkmark about "interruption
of local network operations", see
the reason below) and then also
enable (=place the Checkmark)
on "Enable on-demand dialing":
When this system is NOT connected
to the Internet and another systems
needs Internet access, this ICS HOST
will dial automatically.
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tab: Options
To avoid disturbing the person
working on the ICS Host, minimize
any display of connection progress.
Also, define the Idle Time before
the connection will be terminated. |
On selecting OK, you are advised:

The TCP/IP-address of your network card is changed to 169.254.0.1
, which has
been reserved by Microsoft for a Windows2000 ICS-Host
Also, a DHCP-server is activated for automatically assigning
IP-address to ICS Clients.
The change is made without having to reboot, you can check the
change by opening
a "Command Prompt" and entering "IPCONFIG":

Windows NT IP Configuration
Ethernet adapter Local Area Connection
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Adapter Domain Name . . . . .:
DNS Servers . . . . . . . . . . . .:
IP Address . . . . . . . .. . . . .:
Subnet Mask . . . . . . . . . . .:
Default Gateway . . . . . . . . : |
169.254.0.1
255.255.0.0
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Don't ask me why: But when I configured another Windows2000 Prof.
system for ICS, which
had been installed using 192.168.1.1 as TCP/IP-address, ICS did
not assign 169.254.0.1, but
192.168.0.1 (as used by the Windows98SE ICS ) :

I verified the IP-address by opening a "Command Prompt"
and entering "IPCONFIG":

Windows NT IP Configuration
Ethernet adapter Local Area Connection
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Adapter Domain Name . . . . .:
DNS Servers . . . . . . . . . . . .:
IP Address . . . . . . . .. . . . .:
Subnet Mask . . . . . . . . . . .:
Default Gateway . . . . . . . . : |
192.168.0.1
255.255.255.0
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It does not matter,
which IP-address ( 169.254.0.1 or 192.168.0.1 ) is assigned to
the ICS host,
just find out which one and check during the ICS-client
installations, that the clients are gettings
an IP-address assigned on the same subnet ( 169.254.x.y or
192.168.0.x).
There are 2 locations to define "Idle Time
before hangup/Disconnect":
- as part of the Properties
of the connection, tab Options
- as part of the Internet Options in the Control-Panel, tab:
Connections, select your
connection and check "Settings"
then "Advanced":

You also need to configure the ICS Clients.
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