Ping many IP addresses rapidly.

IP is

• IP address, e.g. 1.2.3.4
• IP prefix, e.g. 1.2.3.0/24
• IP range, e.g. 1.2.3.4-1.2.3.42

Both v4 and v6 addresses are accepted.

Uses unprivileged ICMP connection, so /proc/sys/net/ipv4/ping_group_range must be set accordingly.

multi-ping filename

Reads IP addresses from filename.

multi-ping

Reads IP addresses from STDIN.

Options

-d duration Delay between successive pings. Duration is given as number followed by timeunit (s, ms, ns).

-t duration Timeout for echo reply.

-r Show reachable IP addresses line by line.

-u Show unreachable IP addresses line by line.

If both or non of -r and -u is given, all addresses are shown and marked "ok" or "failed" respectively.

-D Print debug messages.