Close access to the connection out so that only your proxy can get through.


Setup NAT with private IPs on the inside.

Check to make sure your security device is between your internal LAN and the
internet.  


Chris Hoerichs
Dir. IT Global Sys, Nets, Comms
Pure Fishing
[EMAIL PROTECTED]
Phone:712.336.1520 Ext. 8014
Cell: 712.330.2556
http://www.purefishing.com
Time zone: -06:00 GMT
USA

 -----Original Message-----
From:   Nick [mailto:[EMAIL PROTECTED]] 
Sent:   Tuesday, February 12, 2002 1:32 PM
To:     [EMAIL PROTECTED]
Subject:        Restricting User from Changing IP

I got some nasty users behind proxying / filtering server,..
sometimes they change their ip address to get out from the restrictions.

What should  I  do to prevent this ? ( I use iptables )

TIA
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