Discovering hosts with SCTP INIT ping scans

SCTP packets can be used to determine if a host is online by sending SCTP INIT packets and looking for ABORT or INIT ACK responses. Nmap implements this effective technique named SCTP INIT ping scan.

The following recipe describes how to launch SCTP INIT ping scans from Nmap.

How to do it...

Open your terminal and use the -PY option:

# nmap -sn -PY <target>  

The output follows the same format as the other types of ping scans:

# nmap -sn -PY scanme.nmap.org 
   Nmap scan report for scanme.nmap.org (45.33.32.156) 
   Host is up (0.15s latency). 
   Other addresses for scanme.nmap.org (not scanned):    
   2600:3c01::f03c:91ff:fe18:bb2f 
   Nmap done: 1 IP address (1 host up) scanned in 4.31 seconds 

...