ipFamilyMap := map[v1.IPFamily][]*net.IPNet{}
	for _, cidrStrUntrimmed := range cidrsStrings {
		cidrStr := strings.TrimSpace(cidrStrUntrimmed)
		_, cidr, err := netutils.ParseCIDRSloppy(cidrStr)
		if err != nil {
			// Ignore empty strings. Same as in MapIPsByIPFamily
			if len(cidrStr) != 0 {
				klog.ErrorS(err, "Invalid CIDR ignored", "CIDR", cidrStr)
			}
			continue
		}