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Old 09-17-2012, 02:30 PM   #1
Kaustuv
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Searching a service using port scan from several subnets


Hi,

In my organization, we have different subnets. I don't know on which machine a particular service is running. It can be in different subnet than my source machine(from which machine I am trying to find out the machine IP & port number on which that service is running).

I know "nmap" can help me to port scan the service for a particular network(e.g like: nmap -PN <network-address/subnet-mask>

Is possible to use "nmap" in smarter way so that it can find all the subnets dynamically from routing table of every the routers & do the port scanning simultaneously to discover the services?

Is any other tool available to fulfill my requirement?

Regards,
Kaustuv
 
Old 09-18-2012, 06:49 AM   #2
acid_kewpie
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how do you suppose you'll get the routing tables from the routers?? That's no mean feat.
 
Old 09-18-2012, 07:26 AM   #3
genese
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Quote:
Originally Posted by Kaustuv View Post

Is any other tool available to fulfill my requirement?
There are SNMP based tools that can do network discovery. Search google for SNMP tools.

You'll need of course the community names of your routers.
 
  


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