// This field follows standard Kubernetes label syntax.
  // Valid values are either:
  //
  // * Un-prefixed protocol names - reserved for IANA standard service names (as per
  // RFC-6335 and https://www.iana.org/assignments/service-names).
  //
  // * Kubernetes-defined prefixed names:
  //   * 'kubernetes.io/h2c' - HTTP/2 over cleartext as described in https://www.rfc-editor.org/rfc/rfc7540

  }

  /**
   * Evaluates whether the argument is an ISATAP address.
   *
   * <p>From RFC 5214: "ISATAP interface identifiers are constructed in Modified EUI-64 format [...]
   * by concatenating the 24-bit IANA OUI (00-00-5E), the 8-bit hexadecimal value 0xFE, and a 32-bit
   * IPv4 address in network byte order [...]"
   *
   * <p>For more on ISATAP addresses see section 6.1 of <a target="_parent"

com.ar
coop.ar
edu.ar
gob.ar
gov.ar
int.ar
mil.ar
musica.ar
mutual.ar
net.ar
org.ar
senasa.ar
tur.ar

// arpa : https://en.wikipedia.org/wiki/.arpa
// Confirmed by registry <iana******@****.***> 2008-06-18
arpa
e164.arpa
in-addr.arpa
ip6.arpa
iris.arpa
uri.arpa
urn.arpa

// as : https://en.wikipedia.org/wiki/.as
as
gov.as