What type of IP conflicts? Is yoru DHCP server handing down the same IP address to different machines? You may want to have a setup similar to this: IN your domain controller you have 2 subgroups under the "COMPUTERS" OU. Container 1 = Internet Access Allowed Place all the PCS you want to have IP access allowed in this Container. Container 2 = Not allowed Place all the PCs without access here. Direct your DHCP server to hand out a certain range to Container 1 and a different range to container 2. Within squid, set up a src acl for container 1 to allow. Follow? > dear friends, > > i m from india & is using a 2 Mbps Leased Line > connection, distributing it through windows 2003 server with > squid & ip based filtering. > frequently i suffer from problems like ip conflicts bcoz > users who dnt hav internet facility track the ip on which > internet is available & changes them. > > what is the remedy to this. > is there a solution like this. > for all computers that need to hav internet facility, > should be in domain of the system on which squid is > installed & only these will have internet facility & > no other computer on LAN can access internet, dsnt matter > what its IP is. or there is a MAC based filtering available 4 windows in squid. > > whts ur opinions frnds? > > bye Now surf faster and smarter ! Check out the new Firefox 3 - Yahoo! Edition http://downloads.yahoo.com/in/firefox/