From: Rocky (pixscreenpoint@gmail.com)
Date: Wed Jun 14 2006 - 22:25:15 EDT
Thank you again for very helpful inputs.
my network is very simple, i make it simple :)
Internet---T3/3845 IOS FW/IPS-----Three FE interfaces(internal net).
the 3 FE interfaces are totally independent to each other with their
own MS Server2003 AD with different application running on each
and also different sets of private ip address on each network.
One FE interface network is public access with 3 wireless AP and it
should not access the 2 other network and vice versa.
Most of our heavy traffic came from this network(public access) which
mostly http traffic that i can see through NBAR and MRTG..P2P clients
are blocked from all internal network. Our deeply concerned is the public
access network which might or has a potentials to access the 2 other
internal networks.Thats what my director is scared of, and he is
concerned that someone
is accessing the workstations inside the 2 network.
Using NMAP,Nessus to penetrate the 2 internal network and servers
are not giving me any responses that is why i'm pretty sure that the
2 network is secured. ICMP traffic is deny from all interfaces and each
network are also define in my ACL to deny, i just permit one
workstation for troubshooting purposes.
As i said i cannot fathom my director of what he wanted coz he doesn't
much understand about network security technology.
Is there any way to segregate this public access interface from
the other 2 interfaces? do you think this designed is not appropriate?
Thanks again,
Rocky
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