Creating a visual Map of a network?

Tue Sep 16 10:03:59 UTC 2008

I am being tasked to map a network.  In the past I have used nmap to find the systems on the local LAN and remote LANs (same enterprise).

This time I want to create a visual map of the LAN.  With cheops, I reasonably good results but cannot be documented for managers with certainty. What are some good tools now that will create visual maps of the networks?

What is the best way to map a network when ICMP echo has been turned off?

Thank you in advance for any help.

Subba Rao