Query: NMAP and Multiple Tier Network Discovery

[william fitzgerald <wfitzgerald () tssg org>]

Dear Experts,

Can NMAP map and traverse multiple networks with a single enterprise.

I am looking for a nice open source network discovery tool that can 
discover hosts and their services within a enterprise/corporate environment.

Example enterprise network topology:
GatewayFirewall --> DMZ Servers
                --> Tier2-Firewall --> Application Servers
                                   --> Tier3-Firewall --> Databases
                                                      --> Corp-LAN

It would be handy to use a tool to traverse the network (including 
firewalls and routers) to map out the entire network for host types and 
service they run. Presumably all firewalls in the enterprise network 
would have rules to permit the dedicated host running nmap.

Is NMAP capable of this if its only hosted/running in a single tier or 
should I be looking at: multiple instances of nmap or another tool 
(www.netdisco.org/ ) or a combination of tools.


regards,
Will.


--
William M. Fitzgerald,
PhD Student,
Telecommunications Software & Systems Group,
ArcLabs Research and Innovation Centre,
Waterford Institute of Technology,
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