Dear Pro's, I am implementing a squid proxy based on MAC address based authetication with squid 3.0 Stable + CentOS 5.2. I would like to know whether i could configure in such a way that squid will allow access only if both the MAC address and IP address pair matches. For example; if user abc who have mac address of 00:3F:65:3C:77:2C and have the ip address of 192.168.0.10 will get internet only with his current MAC+IP combination. If he change his IP address to 192.168.0.20 or if he change his Network Interface card, Squid should BLOCK his access. Is this Possible??? - -- --- Always try to find TRUTH