External IP fact(s)
Sage Imel email@example.com
Provides an external_ip4 fact that shows your ipv4 IP address as returned by http://ipv4.icanhazip.com. Provides and an external_ip6 fact that shows your ipv6 IP address as returned by http://ipv6.icanhazip.com.
Useful if you have a host with a dynamic IP address.
Ruby doesn't seem to let you specify which interface Web::HTTP uses, so on a box with multiple interfaces your milage may very.