[squid-users] fastening squid to a port: problem

Hi,
I have in squid,
http_port 192.168.10.100:3128

But people in the office can browse the net using 192.168.10.100 and
port 0000 too.
Plus they can brose without giving a port number, but just the ip of
proxy.
How can I stop that? Do I need to give any more info? What? It is simple
out-of-box squid on Mandrake Linux machine.

Any ideas please?

With warm regards,
-Payal

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