Hallo, a, Du meintest am 18.08.11: > I have several squid boxes running. There is one which when i set it > on the proxy configuration on my client PCs browser then open > www.whatismyip.com , It not only bring its real NAT IP , but also > below information too. What makes the site gets these information and > how can prevent or change this banner? Then try another server/service, p.e. myip.it myip.nl And then you need a script for extractiing the IP address ... Viele Gruesse! Helmut