expectIncorrect: nil,
		},
	}

	for _, testcase := range testCases {
		t.Run(testcase.desc, func(t *testing.T) {
			ipFamily := v1.IPv4Protocol
			otherIPFamily := v1.IPv6Protocol

			if testcase.wantIPv6 {
				ipFamily = v1.IPv6Protocol
				otherIPFamily = v1.IPv4Protocol
			}

			ipMap := MapIPsByIPFamily(testcase.ipString)

			var ipStr []string
			for _, ip := range ipMap[ipFamily] {

	switch ipFamily {
	case netutils.IPv4:
		return v1.IPv4Protocol
	case netutils.IPv6:
		return v1.IPv6Protocol
	}

	return v1.IPFamilyUnknown
}

// OtherIPFamily returns the other ip family
func OtherIPFamily(ipFamily v1.IPFamily) v1.IPFamily {
	if ipFamily == v1.IPv6Protocol {
		return v1.IPv4Protocol
	}

	return v1.IPv6Protocol
}

	ipFamilyMap := proxyutil.MapIPsByIPFamily(service.Spec.ExternalIPs)
	info.externalIPs = ipFamilyMap[ipFamily]

	// Log the IPs not matching the ipFamily
	if ips, ok := ipFamilyMap[proxyutil.OtherIPFamily(ipFamily)]; ok && len(ips) > 0 {
		klog.V(4).InfoS("Service change tracker ignored the following external IPs for given service as they don't match IP Family",

	} else if len(cidrsByFamily[s.PrimaryIPFamily]) == 0 {
		errors = append(errors, fmt.Errorf("cluster appears to be %s-primary but nodePortAddresses contains only %s addresses; NodePort connections will be accepted on all local %s IPs", s.PrimaryIPFamily, proxyutil.OtherIPFamily(s.PrimaryIPFamily), s.PrimaryIPFamily))
	}