Hi all, I am located in Burdwan,WestBengal. In my office we have an internet connection, which is connected through a CAT 5 Cable to a LAN card to a P4 PC running Windows 7. We can access internet from that machine without any problems. The LAN card through which internet is connected having an IP address of 172.16.0.27, default gateway 172.16.0.1 and DNS 172.16.0.1. These all IP address are instructed by the service provider while configuring internet. We have another LAN card (IP 172.16.0.100, default gateway 172.16.0.27, DNS 172.16.0.1) which is connected to a switch , for LAN. Now when I try to share internet for rest of the machines(all having IP in 172.16.0.X,default gateway 172.16.0.100, DNS 172.16.0.1), it fails to share internet. I tried IP in 172.16.0.X,default gateway 172.16.0.27, DNS 172.16.0.1 for remaining machine but that to could not connect to the internet. If I try to use ICS on the second LAN card of the machine where internet is connected, the first LAN card takes the default IP for ICS (i.e. 192.168.137.1) and internet connection is not available on that machine too.

Please provide me suggestions to solve this problem so that I can use internet from all of the PCs and share file and print too.

Thanks and regards.