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roglan

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3 PC's - one Cable modem - no hub.......?

I'm trying to temporaily let three computers share one cable modem (usually only have two)

On PC_1 is connected to the Internet, and is sharing it's connection to PC_2. This works fine, with private addresses etc on the second PC.

But now I've connected PC_3 to PC_2, and I'm suddenly running into trouble. I enabled Ip forwarding through a registry setting, and set a static route to get back an forth from PC_1 and PC_3. I can ping from PC_2 and PC_1 to PC_3, and between 1 and 2, but NOT from 3 to 1 (or onto the Internet). The really strange thing is I'm obviously connected to the Internet, as MSN Messenger works well, while all other services I've tried does not.......

Anyone?

Roger
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roglan

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....and yes, I'm running Win2K on all PC's.
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ICS should only be running on PC 1,

Turn off all firewall software.

NAT etc should be turned off on PC2, PC3.

ALso, do an ipconfig /all on all 3 computers and post it here.

Get the latest NIC drivers for all PC's.

I hope this helps !
buy a linksys router, and connect the cable modem to it, and the 3 machines to the LAN side. the routers are cheap, and it's a no fuss solution (about $45 US)
I've never had any luck with the IP forwarding way of doing this.  As stated above get a cheap hub/switch.  You don't even need the router.  I have an old 8 port unmanaged 10mbit hub.  You drive over and pick it up and it's yours for $5
or connect pc3 to pc1 instead of pc2
How are these 3 boxes physically connected? 2 NICs on PC_2 and "daisy-chained"? I'd go with SysExpert and connect PC_3 to PC_1 instead of PC_2 and enable the IP routing n PC_1.

Basically PC_1 should be your router, not PC_2.


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Please delete this question.
I've never found the solution and decided I'd have to do with 2 pc or by a hub... :-) And I don't need it that much...thanks for the input anyway!


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Netminder

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