I’m the administrator of one of our companies site offices. In our site office we have an ISA 2004 Server using leased line for internet. Nobody can access the internet unless I configure their IP address on the ISA. I noticed that one of our laptop users not having internet access is able to access the web through a wireless connection.
I’m suspecting that one of our internet users is using ICS to share his connection through a wireless router as i discovered two IP address registered to his PC. One is registered to our ISA having 192.168.42.XX on LAN and the other is 192.168.0.1 through his wireless LAN. I tried using “tracert www.yahoo.com” to find out if i can get the IP address of the router but it just points me to 192.168.0.1 going to our ISA server leased line IP going to yahoo.
In short, how can I prevent client computers from using ICS to share their internet through ISA 2004. Is there a firewall policy for this.
Thanks
