Networks ICS on laptop via firewire

I cant seem to find this solution on other threads, so here goes:

The internet is connected via usb (ADSL) on the family computer downstairs, which is connected to a home network, my main rig is on it and I can access the internet no problem, however I want to connect my laptop to the internet via my main rig using firewire. However when I enable ICS on my main rig the error message comes up saying there is an IP conflict in the network with address 192.168.0.1 (which appears on all network computers). The family computer is using this IP addy (it has to) and my main rig is trying to do the same as for ICS the IP has to be 196.168.0.1.

Is there a way around it?

PS: All computers are running Windows XP Pro, my laptop is XP Home.

 

Could you clarify a bit?

Is your setup:

internet>(usb connection)>Family computer>Switch>Main rig

and you want to connect your laptop via firewire to your main rig?

First off, you need to have differnt IP address for each computer

192.168.0.1 for your family
192.168.0.2 for your rig
192.168.0.3 for your laptop

set the default gateway to 192.168.0.1 on your laptop and it in theroy should work....

Question: why firewire?

 

Yeah, you seem to have a problem. This address HAS to be unique within a single domain. This is why each domain should have a single DHCP server to make it easy for each computer to get a unique address.

When you say you have two computers that both wholly HAVE to have the same addresses, you have a situation that is incompatible with TCP/IP and thus, can not be resolved.

Thus, it might be better if you can describe more what you are trying to do and why they have to have these addresses. The addresses should be configurable simply because there is no way to resolve an address conflict except by creating a new domain (for this you need a new router/gateway).

 

The setup:

Internet > USB > Family Computer > Ethernet > Switch > Ethernet > My Rig > Firewire > My Laptop

I am using firewire because I do not have another ethernet port on my computer, and I do video editing on my laptop cos its Pentium 4 which is better for video editing than my rig, and firewire is a hell lot faster than ethernet (neither computers support gigabit ethernet)

I will try changing all IP addresses to static instead of dynamic, however there are issues with that on my computer - I get a blue screen of death (bad drivers)...

One thing. The other day I manged briefly to access the internet from my laptop via firewire, I am not sure how I did this! So it MUST be possible.

 

if that don't work: where abouts is the switch in the whole configuration(near or far from your main rig)? why not run another cable from the switch or pick up a cheap LAN card and stick it in your comp, personally i don't think firewire is the way to go, and ive never heard of anyone networking useing that. The time you got the net to work my have just been fluke or a page that was running offline.

Edit: it appears that mostly macs use this, although it is supported on PC's. I still stick with my run an ethernet connection idea though.

 

It coulda been a fluke, but a great one! Firewire is better for transferring files cos its 40x faster than the network and 10x faster than 100mbps. I can access the internet if I plug the laptop via firewire on the family computer, this works, but I don't want it connected to that.

is there a program that will allow this?

 

A little confused by your posts, but I will say that the computer using ICS (the one with the internet connection) MUST use 192.168.0.1, you cannot set it to anything else.

If you have the internet connection on the "family pc", this will be 0.1 and share the net across the network.
Then you can access the net on "your" rig.
You want to connect the laptop to that computer via firewire and get net, right?

Well then you should simply bridge the firewire and LAN connections (usually XP does this automatically anyway) and the firewire effectively becomes an extension of the network - hence the laptop has a connection through to the CS machine.

 

You might very well get two devices in the same domain with the same address, but the result will be as you describe. Under the right circumstances only device A will work then seemingly randomly only device B.

I have found under these conditions, one will work intermittently until a definite conflict is noticed by the DHCP server. It will then usually manage to write one of the two devices off and solve the conflict with this type of exclusion. But this is a HW specific solution and thus each network may behave differently.

But really you have to think of it as a regular mailing address. If your neighbor had the same name and street address, the best your mail man could do is get the mail to the right house some of the time. When the address is the same, there is no way to tell if the right mail got to the right place. This is exactly what this address is used for.

As for the ICS host being required to be set to 192.168.0.1, I am not surprised. I am sure Monopoly Software added this limitation to prevent China from setting up a national network without having to pay MS any royalties. But other IP devices (like the family computer you are using for your gateway) should have no such limitation. You should be free to set them to any address you wish - unless their respective software drivers do not let you. If the drivers are limited (in this case again by MS) it is to purposely limit the usefulness of their non-professional versions and keep people from trying to get a bunch of free connectivity.

But other than that, there is no IP specific reason the gateway has to be that specific address. If the gateway address were fixed, there would be no reason to specify a default gateway address when you are adding a new computer to a domain.