Any way to change ICS subnet from 192.168.0.1 ???

[unix]

I have a sort of funky setup I'm trying to get working.

PC #1 has two NICs:

NIC1 - Wireless card getting internet (DHCP) from a router using
192.168.0.x subnet
NIC2 - Ethernet card I want to use for sharing NIC1 connection. (If I
use ICS, it tries to assign this NIC 192.168.0.1 and THIS is a
problem).


PC #2 Has one NIC with a crossover cable to NIC2 on PC #1.

In a nutshell, my cable router is NATing the real cable modem address
to 192.168.0.0 and this conflicts with ICS setting for NIC2. Is there
a way to force ICS to use some other network ???? Note, I don't have
admin access to the wirelesws router and can't force it to use some
other inside subnet. Since the router is in effect 192.168.0.1, the
ICS wizard craps out and I need to trick it (if possible).

Thanks in advance
Ron

 

[cjburchfield]

I have a sort of funky setup I'm trying to get working.

PC #1 has two NICs:

NIC1 - Wireless card getting internet (DHCP) from a router using
192.168.0.x subnet
NIC2 - Ethernet card I want to use for sharing NIC1 connection. (If I
use ICS, it tries to assign this NIC 192.168.0.1 and THIS is a
problem).

PC #2 Has one NIC with a crossover cable to NIC2 on PC #1.

In a nutshell, my cable router is NATing the real cable modem address
to 192.168.0.0 and this conflicts with ICS setting for NIC2. Is there
a way to force ICS to use some other network ???? Note, I don't have
admin access to the wirelesws router and can't force it to use some
other inside subnet. Since the router is in effect 192.168.0.1, the
ICS wizard craps out and I need to trick it (if possible).

Thanks in advance
Ron

I could be wrong, but I believe you can let the ICS wizard run and
manually set the IP addresses on the machines (for PC1 NIC2 and PC2
NIC1) to something else (EX: 172.168.x.x). This SHOULD fix your
problem, but I'm not positive it will.

 

[RalfG]

AFAIK ICS can only use 192.168.0.1. It would be simpler to just change the
IP range used by the router instead, to say 192.168.1.x or 192.168.10.x, or
even something in one of the other private addressing subnets.

 

[Lem]

I have a sort of funky setup I'm trying to get working.

PC #1 has two NICs:

NIC1 - Wireless card getting internet (DHCP) from a router using
192.168.0.x subnet
NIC2 - Ethernet card I want to use for sharing NIC1 connection. (If I
use ICS, it tries to assign this NIC 192.168.0.1 and THIS is a
problem).


PC #2 Has one NIC with a crossover cable to NIC2 on PC #1.

In a nutshell, my cable router is NATing the real cable modem address
to 192.168.0.0 and this conflicts with ICS setting for NIC2. Is there
a way to force ICS to use some other network ???? Note, I don't have
admin access to the wirelesws router and can't force it to use some
other inside subnet. Since the router is in effect 192.168.0.1, the
ICS wizard craps out and I need to trick it (if possible).

Thanks in advance
Ron

Short answer - no.

From MS KB 310563 http://support.microsoft.com/kb/310563/en-us

The following is a list of Internet Connection Sharing components:
• DHCP Allocator. A simplified DHCP service that assigns the IP address,
default gateway, and name server on the local network.
• DNS Proxy. Resolves names on behalf of local network clients and
forwards queries.
• Network Address Translation (NAT). Maps a block of private addresses
to a set of public addresses. NAT tracks private-source IP addresses and
public-destination IP addresses for outbound requests. It changes the IP
address information and edits the required IP header information
dynamically.
• Auto-dial . Automatically dials connections.
• Application Programming Interfaces (APIs). For configuration, status,
and dial control for programs.

In effect, ICS is acting as a second router in the path from your second
computer to the ultimate Internet connection, including its own DHCP
server and its own NAT. AFAIK, there is no way to configure these
components of ICS. That is, you can't change the IP it assigns to the
LAN-side NIC and you can't change the range of IP addresses that its
DHCP Allocator hands out.

Try doing it manually. Turn off ICS and bridge PC1/NIC1 and PC1/NIC2
from Network Connections. I don't know if PC2/NIC will be able to
obtain an IP address from the wireless router's DHCP server. If not,
assign it a static IP address in the 192.168.0.x segment, with a value
that's not likely to be used elsewhere in the LAN (e.g., 192.168.0.82)
and set values for Gateway and DNS server to point to the wireless
router (get these values from ipconfig /all for PC1/NIC1).

 

[Chuck]

I have a sort of funky setup I'm trying to get working.

PC #1 has two NICs:

NIC1 - Wireless card getting internet (DHCP) from a router using
192.168.0.x subnet
NIC2 - Ethernet card I want to use for sharing NIC1 connection. (If I
use ICS, it tries to assign this NIC 192.168.0.1 and THIS is a
problem).


PC #2 Has one NIC with a crossover cable to NIC2 on PC #1.

In a nutshell, my cable router is NATing the real cable modem address
to 192.168.0.0 and this conflicts with ICS setting for NIC2. Is there
a way to force ICS to use some other network ???? Note, I don't have
admin access to the wirelesws router and can't force it to use some
other inside subnet. Since the router is in effect 192.168.0.1, the
ICS wizard craps out and I need to trick it (if possible).

Thanks in advance
Ron

Ron,

Microsoft provides instructions here, but note the caveat.
Although altering these specific ICS settings is possible in the manner
described in this article, Microsoft Product Support Services will not assist
with customizing IP settings for ICS beyond the default configuration.
<http://support.microsoft.com/kb/230148/>
http://support.microsoft.com/kb/230148/

 

[Jack \(MVP-Networking\).]

Hi
I do not know why you need double NAT?
However, if you really need it, you can get an inexpensive second hand wire
Cable/DSL Router (it can be found for as low as $10).
You can also try this,
http://www.analogx.com/CONTENTS/download/network/proxy.htm
Jack (MVP-Networking).

 

[AJR]

Well - okay - I am slightly confused (maybe a lot) but you state"...PC #2
Has one NIC with a crossover cable to NIC2 on PC #1.
In a nutshell, my cable router is NATing the real cable modem address..."

"Cable router" a broadband router? why then are you connecting the computers
to each other rather than directly to the router?

 

[Steve Winograd [MVP]]

Ron,

Microsoft provides instructions here, but note the caveat.
Although altering these specific ICS settings is possible in the manner
described in this article, Microsoft Product Support Services will not assist
with customizing IP settings for ICS beyond the default configuration.
<http://support.microsoft.com/kb/230148/>
http://support.microsoft.com/kb/230148/

Ron and Chuck,

That Microsoft article applies to an ICS host running Windows 98
Second Edition or Windows Me. It doesn't apply to a host running XP.
There's no documented or supported way to change the ICS subnet in XP.

After you set up ICS, you can manually change the host computer's home
network connection to an IP address in another subnet. However:

1. That will disable the host's built-in DHCP allocator, so you'll
have to configure the TCP/IP properties on the client computer
manually.

2. There's no guarantee that ICS will work.

3. There's no guarantee that other networking functions will continue
to work.

If you try it, at your own risk, be sure to create a System Restore
point to use to recover from any problems.

The best solution would be to ask the administrator of the wireless
router to change the router's subnet. That should be easy to do.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com

 

[unix]

Well - okay - I am slightly confused (maybe a lot) but you state"...PC #2
Has one NIC with a crossover cable to NIC2 on PC #1.
In a nutshell, my cable router is NATing the real cable modem address..."

"Cable router" a broadband router? why then are you connecting the computers
to each other rather than directly to the router?











- Show quoted text -

The router is owned by the condo (shared among 3 families). I only
have one wireless card in PC#1 and connect others to it via regular
crossover cable. This is why I need ICS working but this conflict with
192.168.0.1 is a major pain. I did the registry change but still NG.

 

[Jack \(MVP-Networking\).]

Hi
The best solution (would cost around $100) is to get Wireless Cable/DSL
Router and a Driverless Wireless Card ( the Game Box type or Linksys
WET54G). Since these cards after configuration do not need drivers it can
be plugged to the WAN port of the Wireless Router. The card would receive
the condo Signal and through he WAN port of your Wireless Router would
provide you with Routing, wire connection, and Wireless forming your own
private Network. It would also provide you with extra security by
segregating your Network from the common condo network
(http://www.ezlan.net/shield.html).

Jack (MVP-Networking).