Scanning IPv6 is the same as scanning IPv4. The only difference is that you need to specify the version of IP that is to be used. Only hosts that have an IPv6 address can be scanned using this version of IP so there may be large numbers of hosts where this is not necessary.

It is possible to have different services available on IPv4 and IPv6 so if these addresses are in use, make sure to scan them. It should be noted that nmap can only scan TCP ports available on IPv6

nmap -6 <IPv6 address>

As IPv6 addresses are much longer than IPv4, it may be beneficial to use hostnames instead of numerical IP values.

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