Network Scanning tool to find hosts

Hello, can anyone recommend an network scanning tool to find hosts dead and alive?

I go from client to client and I have used Advanced IP Scanning and it is good but it leaves ip addresses from other locations and I can't figure out how to clear the cache so this doesn't help....
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Dan CraciunIT ConsultantCommented:
How about Nmap?

jorge diazSECommented:
if all you want is to check port live hosts then angry ip scanner would do it. it's light weigh and simple, if you need advanced scanning nmap.  keep in mind that host firewalls may block icmp request making appear as down.

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tucktechAuthor Commented:
Great!  Appreciate the recommendations.
tucktechAuthor Commented:
Thanks for the solution list.
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Network Analysis

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