Send a ping to each IP on a subnet
Is there a command line based way to send pings to each computer in a subnet? Like
for(int i = 1; i < 254; i++)
ping(192.168.1.i);
to enforce arp resolution?
Answer
Not all machines have nmap available, but it's a wonderful tool for any network discovery, and certainly better than iterating through independent ping commands.
$ nmap -n -sP 10.0.0.0/24 Starting Nmap 4.20 ( http://insecure.org ) at 2009-02-02 07:41 CST Host 10.0.0.1 appears to be up. Host 10.0.0.10 appears to be up. Host 10.0.0.104 appears to be up. Host 10.0.0.124 appears to be up. Host 10.0.0.125 appears to be up. Host 10.0.0.129 appears to be up. Nmap finished: 256 IP addresses (6 hosts up) scanned in 2.365 seconds