ICS Behind a Router with DHCP

[Guest]

I have the following network setup

D-LINK ADSL Router (4 ports) DHCP enabled
192.168.0.1
|
---------------------------------------------
| | |
| | |
PC 1 PC 2 PC3
NIC 1 192.168.0.29 IP from ADSL IP From ADSL
NIC 2 192.168.0.1 NONE NONE
||
===================
|| ||
PC 4 PC 5
NIC 1 IP from PC1 DHCP IP from PC1 DHCP


I want PC1 to enable Internet Connection Sharing to PC's 4 and 5. I have to do this so that I can
run band width limiting software on PC1 so that PC 4 and PC5 can use more than 20Kbs.
When I do this Windows wants to set the IP address of NIC 2 to 192.168.0.1 which is fine by me,
unfortunately Windows then goes and says that this IP address is in use on the network. Now
192.168.0.1 IP address is NOT in use on the NIC 2 Network.
What IP address changes can I make so that this will work?

 

[CheshireCat]

Hi Adam
I assume you're getting the error because you're using the same IP subnet
range on both networks. You could try changing the default network IP range
for the router (if it lets you) but I don't know if you're going to be able
to make this work. Look at the responses to a similar problem on 8th Feb
entitled "sharing a connection via a bridge" where Marc Reynolds says that
Keith would not be able to route the private network to the internet. I
should have posted to his thread to find out why not.

 

[Hans-Georg Michna]

"Adam Anderson \(remove the spam from my address\)"

I have to do this so that I can
run band width limiting software on PC1

Adam,

I have no solution, only the suspicion that ICS has a bug that
leads to confusion between the two networks.

But I have a question. Which bandwidth limiting software do you
use? I'm also looking for something like this and am not aware
of such software, so your message piqued my curiosity.

Hans-Georg

 

[Bob Willard]

I have the following network setup

D-LINK ADSL Router (4 ports) DHCP enabled
192.168.0.1
|
---------------------------------------------
| | |
| | |
PC 1 PC 2 PC3
NIC 1 192.168.0.29 IP from ADSL IP From ADSL
NIC 2 192.168.0.1 NONE NONE
||
===================
|| ||
PC 4 PC 5
NIC 1 IP from PC1 DHCP IP from PC1 DHCP


I want PC1 to enable Internet Connection Sharing to PC's 4 and 5. I have to do this so that I can
run band width limiting software on PC1 so that PC 4 and PC5 can use more than 20Kbs.
When I do this Windows wants to set the IP address of NIC 2 to 192.168.0.1 which is fine by me,
unfortunately Windows then goes and says that this IP address is in use on the network. Now
192.168.0.1 IP address is NOT in use on the NIC 2 Network.
What IP address changes can I make so that this will work?

Look at from the viewpoint of PC 1 -- it can see two nodes with
IPA=192.168.0.1, the ADSL router and its own NIC 2. Bummer.

Since ICS on PC 1 will always force the downstream NIC to use 192.168.0.1,
your only choice is to set the ADSL router to use some other IPA for its
LAN-side. If that's not possible, then you have a couple of choices:
get a more flexible ADSL router, or use some app other than XP's ICS for
the lower network segment.

 

[Hans-Georg Michna]

Look at from the viewpoint of PC 1 -- it can see two nodes with
IPA=192.168.0.1, the ADSL router and its own NIC 2. Bummer.

Bob,

just out of curiosity, since they are on two different LANs,
shouldn't they happily coexist?

Hans-Georg

 

[Bob Willard]

Bob,

just out of curiosity, since they are on two different LANs,
shouldn't they happily coexist?

Hans-Georg

I don't see how. How, for example, would XP know what to do for
something like PING 192.168.0.1?

I'm not equipped to try it; if somebody else can, I'd be interested
in the results.