!scan-ip6 performs a simple scan of the Common Ports Internet ports on the host(s) using the IPv6 address. This allows you to quickly determine whether widely used services such as HTTP, HTTPS, SSH, SMTP, or DNS are reachable from the IPduh scanning host.
Because port scanning can generate unwanted traffic, !scan-ip6 caches results to avoid becoming an Internet nuisance. This caching helps reduce repeated scans of the same hosts while still providing useful visibility for general diagnostics and service discovery.
For real-time debugging of an Internet service, you may need to use !scan-port, which performs a direct, uncached probe of a specific port. You may also use !scan to perform the same operation as !scan-ip6.