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Ping scanning without nmap

Terminal - Ping scanning without nmap
prefix="10.0.0" && for i in `seq 25`; do ping -c 1 $prefix.$i &> /dev/null && echo "Answer from: $prefix.$i" ; done
2010-04-07 17:17:21
User: xeor
Functions: echo ping
-2
Up
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Ping scanning without nmap

Not really an easier solution. But an example using && for (if last command returned 0). You can use || for (if last command returned other than 0)..

Show sample output | Add to favourites | Report as malicious

Alternatives

There are 9 alternatives - vote for the best!

Terminal - Alternatives
for i in {1..254}; do ping -c 1 -W 1 10.1.1.$i | grep 'from'; done
2010-04-07 16:57:53
User: SuperJediWombat
Functions: grep ping
Tags: ping
13
Up
Down
Ping scanning without nmap

Usefull for when you don't have nmap and need to find a missing host.

Pings all addresses from 10.1.1.1 to 10.1.1.254, modify for your subnet.

Timeout set to 1 sec for speed, if running over a slow connection you should raise that to avoid missing replies.

This will clean up the junk, leaving just the IP address:

for i in {1..254}; do ping -c 1 -W 1 10.1.1.$i | grep 'from' | cut -d' ' -f 4 | tr -d ':'; done

Show sample output | Comments (0) | Add to favourites | Report as malicious
for i in `seq 1 255`; do ping -c 1 10.10.10.$i | tr \\n ' ' | awk '/1 received/ {print $2}'; done
2009-08-22 09:34:27
User: hemanth
Functions: awk ping tr
Tags: ping
2
Up
Down
Ping sweep without NMAP

Ping sweep without NMAP

Comments (2) | Add to favourites | Report as malicious
prefix="169.254" && for i in {0..254}; do echo $prefix.$i/8; for j in {1..254}; do sh -c "ping -m 1 -c 1 -t 1 $prefix.$i.$j | grep \"icmp\" &" ; done; done
2012-07-25 12:07:15
User: tempelorg
Functions: echo sh
Tags: ping
0
Up
Down
Ping sweep without NMAP

This version combines the best of the other suggestions and adds these features:

1. It scans a /16 subnet

2. It is very fast by running the ping commands in the background, running them in parallel.

3. Does not use the "-W" option as that's not available in older ping versions (I needed this for OS X 10.5)

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Know a better way?

If you can do better, submit your command here.

What others think

Note that "seq" is not portable (it isn't standard) and probably works on Linux only. On BSD systems there is a similar command called "jot", which is equally non-portable, of course. Solaris and other systems have neither of these.

It's also worth mentioning that some shells have built-in features that fullfill the same purpose. For example, in zsh and bash you can write "for i in {1..25}". But this is also non-standard and doesn't work with plain bourne shells, e.g. it is not supported by /bin/sh on most non-Linux systems (where /bin/sh is neither bash nor zsh).

Comment by inof 162 weeks and 5 days ago

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