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Win 7 - XP Internet sahring

Last response: in Networking
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December 17, 2011 2:40:28 PM

Greetings,

I have two PCs
PC1 have 1 on board lan, 1 usb lan(rj45) adapter and broadband connection (PPPOE Connection)
PC2 has 1 on board lan.

PC1-has Win7 with Zone Alarm. PC1 and PC2 are on trusted zone.
PC2 - has xp sp3 with all firewall disabled.

The PC1 and PC2 are connected via Crossover CAT5e Cable.

PC1 has internet connected to usb lan adapter via pppoe connection.

PC1 and PC2 have 192.168.10.x 255.255.255.0 Private IPs and are able ping and share files. But not able to share Internet connection.

I have gone through many articles and tried a lot but not able to get the internet shared. The broadband has both the PC mac updated.

Any help would be a great assist, and I cannot get a router too. I even tested with Firewall (zonealarm and windows firewall) off on both PCs, but no results.

Thanks and looking forward for assistance.

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a b X LAN
December 17, 2011 3:17:14 PM
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did you setup the internet sharing on the Win7 computer?

did you try to disable Zone Alarm to see if that is the culprit?
December 17, 2011 5:07:13 PM

Emerald said:
did you setup the internet sharing on the Win7 computer?

did you try to disable Zone Alarm to see if that is the culprit?


Yes, I have setup the net sharing on win 7 and shutdown the zone alarm, yet not results.
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a b X LAN
December 17, 2011 9:19:42 PM

Neither PC1 nor PC2 should be using static IPs. The whole point of using ICS is to have it establish a new network (192.168.0.x) between PC1 and PC2. That happens automatically once ICS is enabled. ICS will set the IP of PC1 to 192.168.0.1, and then establish a DHCP server, which PC2 (presumably configured for DHCP) will query and get assigned from that DHCP server’s IP pool (most likely, 192.168.0.2).

IOW, you shouldn’t be doing ANYTHING wrt to PC1 and PC2 when it comes to their shared connection. Each of those adapters should be set to DHCP. Then enable ICS and ICS will automatically configure everything appropriately.
December 18, 2011 2:28:28 PM

The problem is solved, although I added the lans to trusted zones in my Zone Alarm, I came to know after spending some 8hrs+ research that ZONE ALARM FREE version does not promote ICS, it does not support internet connection sharing.

Thanks for all the support. Now I am in hunt for a free firewall that support ICS :( 
December 19, 2011 1:42:36 AM

Well, I found the solution and updated it here :
http://surpavan.blogspot.com/2011/12/internet-connectio...

Well, the issue is of free zonealarm firwall is now resolved by replacing it with Free Personal Firewall on both PC with Comodo and now I have the same control freedom on both PCs.

Thank you all for the support.
December 19, 2011 5:10:09 AM

The whole point of using ICS is to have it establish a new network (192.168.0.x) between PC1 and PC2. That happens automatically once ICS is enabled.
December 20, 2011 7:09:43 AM

lickss said:
The whole point of using ICS is to have it establish a new network (192.168.0.x) between PC1 and PC2. That happens automatically once ICS is enabled.http://www.uklv.info/g.php


Yes, that is correct, however, the problem was the free firewall although I added them to trusted, it could not solve it since it is free version, but now it is solved. Thanks.
December 20, 2011 7:10:38 AM

Best answer selected by surpavan.
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