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Is there any way to get a list of IPs connected to a network? I'm trying to build lots of networking tools so.

2 Answers 2

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You can use

nmap -sP 192.168.1.1-255 

where 192.168.1 must be substituted with your local network address known from ifconfig.

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Even though RFC 1122 requires any host on the network has to process an echo-request and issue an echo-reply in return it's well known that 'paranoid' people think of ping as an security risk and therefore decline to answer echo-request. So obviously no answer is no definite proof of any given host not being online.

However maybe you want to investigate nmap and the python libs that make use of it.

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  • Hope it helps..
    – Ghanima
    Sep 8, 2014 at 15:14

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