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Windows 7: Share internet connection via cross over cable ?

20 Jul 2009   #1

Windows 7 7137 x64
Share internet connection via cross over cable ?

Is it possible to do that ? I knew it might be possible but I found some saying that if the ADSL modem is connected using LAN then it will not work.

So here's my setup:
PC A and PC B (Both using W7 64)
> PC A got two LAN port (LAN C and D)
> PC B got one LAN port
Cross Over cable
ADSL Modem - Connected to PC A via LAN C

What I want to do is connect the crossover via my PC A's LAN C to PC B's LAN to share the internet connection. Is it possible ? I had managed to make the PC B joined my PC A in homegroup, which mean file sharing has no problem at all. I just doesn't know how to set the IP, DNS, gateway to make my PC B access my PC A internet. Any help ? Please let me know it is possible.


My System SpecsSystem Spec
20 Jul 2009   #2
Microsoft MVP

6x W2K8 R2 (x64), 6x W7 7600 (x64), 2x Gentoo (x64), 1x Ubuntu 9.04 (x64), 1x pfSense (FreeBSD)

Yes it is possible. And since you are using x64 I'm assuming you have a modern PC with a gigabit network card. With gigabit cards you do NOT need a cross-over card, part of the gigabit spec includes auto-sense ethernet ports so any cable should work fine.

What you'll have to do is on PC A go to your network card adapter -> Properties and there should be a Sharing tab. Enable it and then setup your PC B to use DHCP.
My System SpecsSystem Spec
20 Jul 2009   #3

Windows 7 7137 x64

Sad to say that I don't think I am having Gigabit card ... All is just normal 10/100 LAN ... I had do the sharing in PC A but if I make PC B with auto-IP using DHCP then it will get a different range of IP which cannot share files at all, and no internet as well. Can you probably give me an example of setting eg. IP, Gateway on PC A and PC B so that they can share internet connection ? One of the card in PC A that connected to ADSL modem has been assigned to automatically due to the ICS, the rest is adjustable. Thanks !
My System SpecsSystem Spec
20 Jul 2009   #4

Windows 7 Ultimate

That is the good thing when you use internet connection sharing. When you connect that way, it will get assigned a or something like that, You do not have to set the IP address, but you will be able to share.
My System SpecsSystem Spec

 Share internet connection via cross over cable ?

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