Ping sweep without NMAP

(prefix="10.59.21" && for i in `seq 254`; do (sleep 0.5 && ping -c1 -w1 $prefix.$i &> /dev/null && arp -n | awk ' /'$prefix'.'$i' / { print $1 " " $3 } ') & done; wait)
Waits for all pings to complete and returns ip with mac address

2
By: smoky
2014-04-02 11:20:57

4 Alternatives + Submit Alt

  • 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


    15
    for i in {1..254}; do ping -c 1 -W 1 10.1.1.$i | grep 'from'; done
    SuperJediWombat · 2010-04-07 16:57:53 0
  • Ping sweep without NMAP


    3
    for i in `seq 1 255`; do ping -c 1 10.10.10.$i | tr \\n ' ' | awk '/1 received/ {print $2}'; done
    hemanth · 2009-08-22 09:34:27 3
  • 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)


    0
    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
    tempelorg · 2012-07-25 12:07:15 0
  • 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


    -2
    prefix="10.0.0" && for i in `seq 25`; do ping -c 1 $prefix.$i &> /dev/null && echo "Answer from: $prefix.$i" ; done
    xeor · 2010-04-07 17:17:21 1

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