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is_global

Checks whether an IP address is a global address.

is_global(x:ip) -> bool

Description

The is_global function checks whether a given IP address x is a global address. A global address is a publicly routable address that is not:

Loopback (127.0.0.0/8 for IPv4, ::1 for IPv6)
Private (RFC 1918 for IPv4, RFC 4193 for IPv6)
Link-local (169.254.0.0/16 for IPv4, fe80::/10 for IPv6)
Multicast (224.0.0.0/4 for IPv4, ff00::/8 for IPv6)
Broadcast (255.255.255.255 for IPv4)
Unspecified (0.0.0.0 for IPv4, :: for IPv6)

Examples

Check if an IP is global

from {
  global_ipv4: 8.8.8.8.is_global(),
  global_ipv6: 2001:4860:4860::8888.is_global(),
  private: 192.168.1.1.is_global(),
  loopback: 127.0.0.1.is_global(),
  link_local: 169.254.1.1.is_global(),
}

{
  global_ipv4: true,
  global_ipv6: true,
  private: false,
  loopback: false,
  link_local: false,
}

See Also