FlexLM over internet

Hy!

In our office we use AutoCAD on different locations and have only one license server. When we're using AutoCAD2002 with FlexLM 5.3 it works just fine. On my Windows Server 2000 I map ports 27000 - 27010 to internal IP 192.168.1.50 (License Server for AutoCAD2002) and that was it.
Problem comes with ADT2005 and new FlexLM 9. Now I have Licenses for ADT2005 on the Windows Server2000 with 2 NICs (one connected to Internet and one for Internal Network with IP 192.168.1.254). Again I map port from 28000 -28010 to internal IP 192.168.1.254 and doesn't work anymore for external users; abd in license file I wrote that Flexlm works on port 28000 - 28010. For Internal Network users there wasn't any problem and ADT is working just fine. But External users get the massage with .-96 error code.

Where did I go wrong???!!!!???

PLEASE HELP!!!!

 

The product license agreement prohibits sharing licenses over the raw
internet. It is OK to use private connections such as VPN in which case you
should not have this problem.

--
Jerry Milana,
Autodesk Consulting

license server. When we're using AutoCAD2002 with FlexLM 5.3 it works just
fine. On my Windows Server 2000 I map ports 27000 - 27010 to internal IP
192.168.1.50 (License Server for AutoCAD2002) and that was it.

ADT2005 on the Windows Server2000 with 2 NICs (one connected to Internet and
one for Internal Network with IP 192.168.1.254). Again I map port from
28000 -28010 to internal IP 192.168.1.254 and doesn't work anymore for
external users; abd in license file I wrote that Flexlm works on port
28000 - 28010. For Internal Network users there wasn't any problem and ADT
is working just fine. But External users get the massage with .-96 error
code.