网络IP范围分析工具
专业的网络IP分析工具，支持子网计算、网络信息展示和IP地址验证
IP地址配置
网络基本信息
请输入IP地址和子网掩码，然后点击"分析网络"
IP地址:
子网掩码:
CIDR表示:
网络地址:
广播地址:
可用IP数量:
总IP数量:
IP地址类型:
是否为私有IP:
IP地址范围
分析结果将显示在这里
IP地址范围:
网关地址 (通常):
DNS服务器 (建议):
二进制表示:
IP地址:
子网掩码:
网络地址:
示例代码
各语言示例代码
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IPAnalyzer (JAVA)
1import java.util.regex.Pattern; 2import java.util.regex.Matcher; 3 4/** 5 * IP地址分析工具 - Java版本 6 * 支持IP地址验证、子网计算、网络信息分析 7 */ 8public class IPAnalyzer { 9 private String ipAddress; 10 private String subnetMask; 11 12 // IP地址正则表达式 13 private static final Pattern IP_PATTERN = Pattern.compile( 14 "^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$" 15 ); 16 17 public IPAnalyzer() { 18 this.ipAddress = ""; 19 this.subnetMask = ""; 20 } 21 22 /** 23 * 验证IP地址格式 24 * @param ip IP地址字符串 25 * @return 是否有效 26 */ 27 public boolean validateIP(String ip) { 28 return IP_PATTERN.matcher(ip).matches(); 29 } 30 31 /** 32 * 验证子网掩码格式 33 * @param mask 子网掩码字符串 34 * @return 是否有效 35 */ 36 public boolean validateSubnetMask(String mask) { 37 if (!IP_PATTERN.matcher(mask).matches()) { 38 return false; 39 } 40 41 // 检查是否为有效的子网掩码 42 String[] parts = mask.split("\\."); 43 StringBuilder binary = new StringBuilder(); 44 for (String part : parts) { 45 int num = Integer.parseInt(part); 46 binary.append(String.format("%8s", Integer.toBinaryString(num)).replace(' ', '0')); 47 } 48 49 String binaryStr = binary.toString(); 50 int lastOne = binaryStr.lastIndexOf('1'); 51 int firstZero = binaryStr.indexOf('0'); 52 53 if (lastOne == -1 || firstZero == -1) { 54 return false; 55 } 56 57 return lastOne < firstZero; 58 } 59 60 /** 61 * CIDR转子网掩码 62 * @param cidr CIDR值 63 * @return 子网掩码 64 */ 65 public String cidrToSubnetMask(int cidr) { 66 if (cidr < 0 || cidr > 32) { 67 return ""; 68 } 69 70 int mask = (0xFFFFFFFF << (32 - cidr)) & 0xFFFFFFFF; 71 return String.format("%d.%d.%d.%d", 72 (mask >> 24) & 255, 73 (mask >> 16) & 255, 74 (mask >> 8) & 255, 75 mask & 255); 76 } 77 78 /** 79 * 子网掩码转CIDR 80 * @param mask 子网掩码 81 * @return CIDR值 82 */ 83 public int subnetMaskToCidr(String mask) { 84 if (!validateSubnetMask(mask)) { 85 return -1; 86 } 87 88 String[] parts = mask.split("\\."); 89 StringBuilder binary = new StringBuilder(); 90 for (String part : parts) { 91 int num = Integer.parseInt(part); 92 binary.append(String.format("%8s", Integer.toBinaryString(num)).replace(' ', '0')); 93 } 94 95 int count = 0; 96 for (char c : binary.toString().toCharArray()) { 97 if (c == '1') count++; 98 } 99 return count; 100 } 101 102 /** 103 * 获取IP类型 104 * @param firstOctet 第一个八位字节 105 * @return IP类型 106 */ 107 public String getIPClass(int firstOctet) { 108 if (firstOctet >= 1 && firstOctet <= 126) { 109 return "A类"; 110 } else if (firstOctet >= 128 && firstOctet <= 191) { 111 return "B类"; 112 } else if (firstOctet >= 192 && firstOctet <= 223) { 113 return "C类"; 114 } else if (firstOctet >= 224 && firstOctet <= 239) { 115 return "D类 (多播)"; 116 } else if (firstOctet >= 240 && firstOctet <= 255) { 117 return "E类 (保留)"; 118 } else { 119 return "未知"; 120 } 121 } 122 123 /** 124 * 判断是否为私有IP 125 * @param parts IP地址的四个部分 126 * @return 是否为私有IP 127 */ 128 public boolean isPrivateIP(int[] parts) { 129 if (parts.length != 4) { 130 return false; 131 } 132 133 int a = parts[0]; 134 int b = parts[1]; 135 136 // A类私有: 10.0.0.0 - 10.255.255.255 137 if (a == 10) { 138 return true; 139 } 140 141 // B类私有: 172.16.0.0 - 172.31.255.255 142 if (a == 172 && b >= 16 && b <= 31) { 143 return true; 144 } 145 146 // C类私有: 192.168.0.0 - 192.168.255.255 147 if (a == 192 && b == 168) { 148 return true; 149 } 150 151 // 链路本地: 169.254.0.0 - 169.254.255.255 152 if (a == 169 && b == 254) { 153 return true; 154 } 155 156 // 回环地址: 127.0.0.0 - 127.255.255.255 157 if (a == 127) { 158 return true; 159 } 160 161 return false; 162 } 163 164 /** 165 * 网络分析结果类 166 */ 167 public static class NetworkResult { 168 public String ipAddress; 169 public String subnetMask; 170 public String cidr; 171 public String networkAddress; 172 public String broadcastAddress; 173 public int usableHosts; 174 public int totalHosts; 175 public String firstUsableIP; 176 public String lastUsableIP; 177 public String gatewayIP; 178 public String dnsIP; 179 public String ipClass; 180 public boolean isPrivate; 181 public String ipBinary; 182 public String subnetBinary; 183 public String networkBinary; 184 } 185 186 /** 187 * 分析网络 188 * @param ip IP地址 189 * @param mask 子网掩码 190 * @return 分析结果 191 * @throws IllegalArgumentException 如果输入无效 192 */ 193 public NetworkResult analyzeNetwork(String ip, String mask) throws IllegalArgumentException { 194 if (!validateIP(ip)) { 195 throw new IllegalArgumentException("无效的IP地址格式"); 196 } 197 198 if (!validateSubnetMask(mask)) { 199 throw new IllegalArgumentException("无效的子网掩码格式"); 200 } 201 202 // 解析IP和掩码 203 String[] ipParts = ip.split("\\."); 204 String[] maskParts = mask.split("\\."); 205 206 int[] ipNums = new int[4]; 207 int[] maskNums = new int[4]; 208 209 for (int i = 0; i < 4; i++) { 210 ipNums[i] = Integer.parseInt(ipParts[i]); 211 maskNums[i] = Integer.parseInt(maskParts[i]); 212 } 213 214 // 计算网络地址 215 int[] networkNums = new int[4]; 216 for (int i = 0; i < 4; i++) { 217 networkNums[i] = ipNums[i] & maskNums[i]; 218 } 219 String networkAddress = String.format("%d.%d.%d.%d", 220 networkNums[0], networkNums[1], networkNums[2], networkNums[3]); 221 222 // 计算广播地址 223 int[] broadcastNums = new int[4]; 224 for (int i = 0; i < 4; i++) { 225 broadcastNums[i] = ipNums[i] | (255 - maskNums[i]); 226 } 227 String broadcastAddress = String.format("%d.%d.%d.%d", 228 broadcastNums[0], broadcastNums[1], broadcastNums[2], broadcastNums[3]); 229 230 // 计算CIDR 231 int cidr = subnetMaskToCidr(mask); 232 233 // 计算可用主机数 234 int totalHosts = (int) Math.pow(2, 32 - cidr); 235 int usableHosts = totalHosts - 2; 236 237 // 计算第一个和最后一个可用IP 238 int[] firstUsableNums = networkNums.clone(); 239 firstUsableNums[3]++; 240 String firstUsableIP = String.format("%d.%d.%d.%d", 241 firstUsableNums[0], firstUsableNums[1], firstUsableNums[2], firstUsableNums[3]); 242 243 int[] lastUsableNums = broadcastNums.clone(); 244 lastUsableNums[3]--; 245 String lastUsableIP = String.format("%d.%d.%d.%d", 246 lastUsableNums[0], lastUsableNums[1], lastUsableNums[2], lastUsableNums[3]); 247 248 // 计算网关IP (通常是第一个可用IP) 249 String gatewayIP = firstUsableIP; 250 251 // 计算DNS IP (通常是第二个可用IP) 252 int[] dnsNums = firstUsableNums.clone(); 253 dnsNums[3]++; 254 String dnsIP = String.format("%d.%d.%d.%d", 255 dnsNums[0], dnsNums[1], dnsNums[2], dnsNums[3]); 256 257 // 判断IP类型 258 String ipClass = getIPClass(ipNums[0]); 259 boolean isPrivate = isPrivateIP(ipNums); 260 261 // 二进制表示 262 String ipBinary = String.format("%8s.%8s.%8s.%8s", 263 Integer.toBinaryString(ipNums[0]), 264 Integer.toBinaryString(ipNums[1]), 265 Integer.toBinaryString(ipNums[2]), 266 Integer.toBinaryString(ipNums[3])).replace(' ', '0'); 267 268 String subnetBinary = String.format("%8s.%8s.%8s.%8s", 269 Integer.toBinaryString(maskNums[0]), 270 Integer.toBinaryString(maskNums[1]), 271 Integer.toBinaryString(maskNums[2]), 272 Integer.toBinaryString(maskNums[3])).replace(' ', '0'); 273 274 String networkBinary = String.format("%8s.%8s.%8s.%8s", 275 Integer.toBinaryString(networkNums[0]), 276 Integer.toBinaryString(networkNums[1]), 277 Integer.toBinaryString(networkNums[2]), 278 Integer.toBinaryString(networkNums[3])).replace(' ', '0'); 279 280 NetworkResult result = new NetworkResult(); 281 result.ipAddress = ip; 282 result.subnetMask = mask; 283 result.cidr = "/" + cidr; 284 result.networkAddress = networkAddress; 285 result.broadcastAddress = broadcastAddress; 286 result.usableHosts = usableHosts; 287 result.totalHosts = totalHosts; 288 result.firstUsableIP = firstUsableIP; 289 result.lastUsableIP = lastUsableIP; 290 result.gatewayIP = gatewayIP; 291 result.dnsIP = dnsIP; 292 result.ipClass = ipClass; 293 result.isPrivate = isPrivate; 294 result.ipBinary = ipBinary; 295 result.subnetBinary = subnetBinary; 296 result.networkBinary = networkBinary; 297 298 return result; 299 } 300 301 public static void main(String[] args) { 302 IPAnalyzer analyzer = new IPAnalyzer(); 303 304 // 示例1: 分析192.168.1.100/24网络 305 try { 306 NetworkResult result = analyzer.analyzeNetwork("192.168.1.100", "255.255.255.0"); 307 System.out.println("网络分析结果:"); 308 System.out.println(" IP地址: " + result.ipAddress); 309 System.out.println(" 子网掩码: " + result.subnetMask); 310 System.out.println(" CIDR表示: " + result.cidr); 311 System.out.println(" 网络地址: " + result.networkAddress); 312 System.out.println(" 广播地址: " + result.broadcastAddress); 313 System.out.println(" 可用IP数量: " + result.usableHosts); 314 System.out.println(" 总IP数量: " + result.totalHosts); 315 System.out.println(" IP地址范围: " + result.firstUsableIP + " - " + result.lastUsableIP); 316 System.out.println(" 网关地址: " + result.gatewayIP); 317 System.out.println(" DNS服务器: " + result.dnsIP); 318 System.out.println(" IP地址类型: " + result.ipClass); 319 System.out.println(" 是否为私有IP: " + result.isPrivate); 320 } catch (IllegalArgumentException e) { 321 System.out.println("分析失败: " + e.getMessage()); 322 } 323 324 System.out.println(); 325 326 // 示例2: 验证IP地址 327 System.out.println("IP地址验证: " + analyzer.validateIP("192.168.1.100")); // true 328 System.out.println("IP地址验证: " + analyzer.validateIP("256.1.2.3")); // false 329 330 // 示例3: 验证子网掩码 331 System.out.println("子网掩码验证: " + analyzer.validateSubnetMask("255.255.255.0")); // true 332 System.out.println("子网掩码验证: " + analyzer.validateSubnetMask("255.255.255.1")); // false 333 334 // 示例4: CIDR转换 335 System.out.println("CIDR转掩码: " + analyzer.cidrToSubnetMask(24)); // 255.255.255.0 336 System.out.println("掩码转CIDR: " + analyzer.subnetMaskToCidr("255.255.255.0")); // 24 337 } 338} -
ip_analyzer (GO)
1package main 2 3import ( 4 "fmt" 5 "net" 6 "regexp" 7 "strconv" 8 "strings" 9) 10 11// IPAnalyzer IP地址分析工具结构体 12type IPAnalyzer struct { 13 IPAddress string 14 SubnetMask string 15} 16 17// NetworkResult 网络分析结果 18type NetworkResult struct { 19 IPAddress string 20 SubnetMask string 21 CIDR string 22 NetworkAddress string 23 BroadcastAddress string 24 UsableHosts int 25 TotalHosts int 26 FirstUsableIP string 27 LastUsableIP string 28 GatewayIP string 29 DNSIP string 30 IPClass string 31 IsPrivate bool 32 IPBinary string 33 SubnetBinary string 34 NetworkBinary string 35} 36 37// NewIPAnalyzer 创建新的IP分析器 38func NewIPAnalyzer() *IPAnalyzer { 39 return &IPAnalyzer{} 40} 41 42// ValidateIP 验证IP地址格式 43func (a *IPAnalyzer) ValidateIP(ip string) bool { 44 return net.ParseIP(ip) != nil 45} 46 47// ValidateSubnetMask 验证子网掩码格式 48func (a *IPAnalyzer) ValidateSubnetMask(mask string) bool { 49 // 检查格式 50 ipRegex := regexp.MustCompile(`^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$`) 51 if !ipRegex.MatchString(mask) { 52 return false 53 } 54 55 // 检查是否为有效的子网掩码 56 parts := strings.Split(mask, ".") 57 var binary strings.Builder 58 for _, part := range parts { 59 num, _ := strconv.Atoi(part) 60 binary.WriteString(fmt.Sprintf("%08b", num)) 61 } 62 63 // 检查是否为连续的1后跟连续的0 64 binaryStr := binary.String() 65 lastOne := strings.LastIndex(binaryStr, "1") 66 firstZero := strings.Index(binaryStr, "0") 67 68 if lastOne == -1 || firstZero == -1 { 69 return false 70 } 71 72 return lastOne < firstZero 73} 74 75// CIDRToSubnetMask CIDR转子网掩码 76func (a *IPAnalyzer) CIDRToSubnetMask(cidr int) string { 77 if cidr < 0 || cidr > 32 { 78 return "" 79 } 80 81 mask := uint32(0xFFFFFFFF) << (32 - cidr) 82 return fmt.Sprintf("%d.%d.%d.%d", 83 (mask>>24)&255, 84 (mask>>16)&255, 85 (mask>>8)&255, 86 mask&255) 87} 88 89// SubnetMaskToCIDR 子网掩码转CIDR 90func (a *IPAnalyzer) SubnetMaskToCIDR(mask string) int { 91 if !a.ValidateSubnetMask(mask) { 92 return -1 93 } 94 95 parts := strings.Split(mask, ".") 96 var binary strings.Builder 97 for _, part := range parts { 98 num, _ := strconv.Atoi(part) 99 binary.WriteString(fmt.Sprintf("%08b", num)) 100 } 101 102 return strings.Count(binary.String(), "1") 103} 104 105// GetIPClass 获取IP类型 106func (a *IPAnalyzer) GetIPClass(firstOctet int) string { 107 switch { 108 case firstOctet >= 1 && firstOctet <= 126: 109 return "A类" 110 case firstOctet >= 128 && firstOctet <= 191: 111 return "B类" 112 case firstOctet >= 192 && firstOctet <= 223: 113 return "C类" 114 case firstOctet >= 224 && firstOctet <= 239: 115 return "D类 (多播)" 116 case firstOctet >= 240 && firstOctet <= 255: 117 return "E类 (保留)" 118 default: 119 return "未知" 120 } 121} 122 123// IsPrivateIP 判断是否为私有IP 124func (a *IPAnalyzer) IsPrivateIP(parts []int) bool { 125 if len(parts) != 4 { 126 return false 127 } 128 129 a1, b, _, _ := parts[0], parts[1], parts[2], parts[3] 130 131 // A类私有: 10.0.0.0 - 10.255.255.255 132 if a1 == 10 { 133 return true 134 } 135 136 // B类私有: 172.16.0.0 - 172.31.255.255 137 if a1 == 172 && b >= 16 && b <= 31 { 138 return true 139 } 140 141 // C类私有: 192.168.0.0 - 192.168.255.255 142 if a1 == 192 && b == 168 { 143 return true 144 } 145 146 // 链路本地: 169.254.0.0 - 169.254.255.255 147 if a1 == 169 && b == 254 { 148 return true 149 } 150 151 // 回环地址: 127.0.0.0 - 127.255.255.255 152 if a1 == 127 { 153 return true 154 } 155 156 return false 157} 158 159// AnalyzeNetwork 分析网络 160func (a *IPAnalyzer) AnalyzeNetwork(ip, mask string) (*NetworkResult, error) { 161 if !a.ValidateIP(ip) { 162 return nil, fmt.Errorf("无效的IP地址格式") 163 } 164 165 if !a.ValidateSubnetMask(mask) { 166 return nil, fmt.Errorf("无效的子网掩码格式") 167 } 168 169 // 解析IP和掩码 170 ipParts := strings.Split(ip, ".") 171 maskParts := strings.Split(mask, ".") 172 173 ipNums := make([]int, 4) 174 maskNums := make([]int, 4) 175 176 for i := 0; i < 4; i++ { 177 ipNums[i], _ = strconv.Atoi(ipParts[i]) 178 maskNums[i], _ = strconv.Atoi(maskParts[i]) 179 } 180 181 // 计算网络地址 182 networkNums := make([]int, 4) 183 for i := 0; i < 4; i++ { 184 networkNums[i] = ipNums[i] & maskNums[i] 185 } 186 networkAddress := fmt.Sprintf("%d.%d.%d.%d", networkNums[0], networkNums[1], networkNums[2], networkNums[3]) 187 188 // 计算广播地址 189 broadcastNums := make([]int, 4) 190 for i := 0; i < 4; i++ { 191 broadcastNums[i] = ipNums[i] | (255 - maskNums[i]) 192 } 193 broadcastAddress := fmt.Sprintf("%d.%d.%d.%d", broadcastNums[0], broadcastNums[1], broadcastNums[2], broadcastNums[3]) 194 195 // 计算CIDR 196 cidr := a.SubnetMaskToCIDR(mask) 197 198 // 计算可用主机数 199 totalHosts := 1 << (32 - cidr) 200 usableHosts := totalHosts - 2 201 202 // 计算第一个和最后一个可用IP 203 firstUsableNums := make([]int, 4) 204 copy(firstUsableNums, networkNums) 205 firstUsableNums[3]++ 206 firstUsableIP := fmt.Sprintf("%d.%d.%d.%d", firstUsableNums[0], firstUsableNums[1], firstUsableNums[2], firstUsableNums[3]) 207 208 lastUsableNums := make([]int, 4) 209 copy(lastUsableNums, broadcastNums) 210 lastUsableNums[3]-- 211 lastUsableIP := fmt.Sprintf("%d.%d.%d.%d", lastUsableNums[0], lastUsableNums[1], lastUsableNums[2], lastUsableNums[3]) 212 213 // 计算网关IP (通常是第一个可用IP) 214 gatewayIP := firstUsableIP 215 216 // 计算DNS IP (通常是第二个可用IP) 217 dnsNums := make([]int, 4) 218 copy(dnsNums, firstUsableNums) 219 dnsNums[3]++ 220 dnsIP := fmt.Sprintf("%d.%d.%d.%d", dnsNums[0], dnsNums[1], dnsNums[2], dnsNums[3]) 221 222 // 判断IP类型 223 ipClass := a.GetIPClass(ipNums[0]) 224 isPrivate := a.IsPrivateIP(ipNums) 225 226 // 二进制表示 227 ipBinary := fmt.Sprintf("%08b.%08b.%08b.%08b", ipNums[0], ipNums[1], ipNums[2], ipNums[3]) 228 subnetBinary := fmt.Sprintf("%08b.%08b.%08b.%08b", maskNums[0], maskNums[1], maskNums[2], maskNums[3]) 229 networkBinary := fmt.Sprintf("%08b.%08b.%08b.%08b", networkNums[0], networkNums[1], networkNums[2], networkNums[3]) 230 231 return &NetworkResult{ 232 IPAddress: ip, 233 SubnetMask: mask, 234 CIDR: fmt.Sprintf("/%d", cidr), 235 NetworkAddress: networkAddress, 236 BroadcastAddress: broadcastAddress, 237 UsableHosts: usableHosts, 238 TotalHosts: totalHosts, 239 FirstUsableIP: firstUsableIP, 240 LastUsableIP: lastUsableIP, 241 GatewayIP: gatewayIP, 242 DNSIP: dnsIP, 243 IPClass: ipClass, 244 IsPrivate: isPrivate, 245 IPBinary: ipBinary, 246 SubnetBinary: subnetBinary, 247 NetworkBinary: networkBinary, 248 }, nil 249} 250 251func main() { 252 analyzer := NewIPAnalyzer() 253 254 // 示例1: 分析192.168.1.100/24网络 255 result, err := analyzer.AnalyzeNetwork("192.168.1.100", "255.255.255.0") 256 if err != nil { 257 fmt.Printf("分析失败: %v\n", err) 258 } else { 259 fmt.Println("网络分析结果:") 260 fmt.Printf(" IP地址: %s\n", result.IPAddress) 261 fmt.Printf(" 子网掩码: %s\n", result.SubnetMask) 262 fmt.Printf(" CIDR表示: %s\n", result.CIDR) 263 fmt.Printf(" 网络地址: %s\n", result.NetworkAddress) 264 fmt.Printf(" 广播地址: %s\n", result.BroadcastAddress) 265 fmt.Printf(" 可用IP数量: %d\n", result.UsableHosts) 266 fmt.Printf(" 总IP数量: %d\n", result.TotalHosts) 267 fmt.Printf(" IP地址范围: %s - %s\n", result.FirstUsableIP, result.LastUsableIP) 268 fmt.Printf(" 网关地址: %s\n", result.GatewayIP) 269 fmt.Printf(" DNS服务器: %s\n", result.DNSIP) 270 fmt.Printf(" IP地址类型: %s\n", result.IPClass) 271 fmt.Printf(" 是否为私有IP: %t\n", result.IsPrivate) 272 } 273 274 fmt.Println() 275 276 // 示例2: 验证IP地址 277 fmt.Printf("IP地址验证: %t\n", analyzer.ValidateIP("192.168.1.100")) // true 278 fmt.Printf("IP地址验证: %t\n", analyzer.ValidateIP("256.1.2.3")) // false 279 280 // 示例3: 验证子网掩码 281 fmt.Printf("子网掩码验证: %t\n", analyzer.ValidateSubnetMask("255.255.255.0")) // true 282 fmt.Printf("子网掩码验证: %t\n", analyzer.ValidateSubnetMask("255.255.255.1")) // false 283 284 // 示例4: CIDR转换 285 fmt.Printf("CIDR转掩码: %s\n", analyzer.CIDRToSubnetMask(24)) // 255.255.255.0 286 fmt.Printf("掩码转CIDR: %d\n", analyzer.SubnetMaskToCIDR("255.255.255.0")) // 24 287} -
ip_analyzer (JAVA)
1import java.util.regex.Pattern; 2import java.util.regex.Matcher; 3 4/** 5 * IP地址分析工具 - Java版本 6 * 支持IP地址验证、子网计算、网络信息分析 7 */ 8public class IPAnalyzer { 9 private String ipAddress; 10 private String subnetMask; 11 12 // IP地址正则表达式 13 private static final Pattern IP_PATTERN = Pattern.compile( 14 "^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$" 15 ); 16 17 public IPAnalyzer() { 18 this.ipAddress = ""; 19 this.subnetMask = ""; 20 } 21 22 /** 23 * 验证IP地址格式 24 * @param ip IP地址字符串 25 * @return 是否有效 26 */ 27 public boolean validateIP(String ip) { 28 return IP_PATTERN.matcher(ip).matches(); 29 } 30 31 /** 32 * 验证子网掩码格式 33 * @param mask 子网掩码字符串 34 * @return 是否有效 35 */ 36 public boolean validateSubnetMask(String mask) { 37 if (!IP_PATTERN.matcher(mask).matches()) { 38 return false; 39 } 40 41 // 检查是否为有效的子网掩码 42 String[] parts = mask.split("\\."); 43 StringBuilder binary = new StringBuilder(); 44 for (String part : parts) { 45 int num = Integer.parseInt(part); 46 binary.append(String.format("%8s", Integer.toBinaryString(num)).replace(' ', '0')); 47 } 48 49 String binaryStr = binary.toString(); 50 int lastOne = binaryStr.lastIndexOf('1'); 51 int firstZero = binaryStr.indexOf('0'); 52 53 if (lastOne == -1 || firstZero == -1) { 54 return false; 55 } 56 57 return lastOne < firstZero; 58 } 59 60 /** 61 * CIDR转子网掩码 62 * @param cidr CIDR值 63 * @return 子网掩码 64 */ 65 public String cidrToSubnetMask(int cidr) { 66 if (cidr < 0 || cidr > 32) { 67 return ""; 68 } 69 70 int mask = (0xFFFFFFFF << (32 - cidr)) & 0xFFFFFFFF; 71 return String.format("%d.%d.%d.%d", 72 (mask >> 24) & 255, 73 (mask >> 16) & 255, 74 (mask >> 8) & 255, 75 mask & 255); 76 } 77 78 /** 79 * 子网掩码转CIDR 80 * @param mask 子网掩码 81 * @return CIDR值 82 */ 83 public int subnetMaskToCidr(String mask) { 84 if (!validateSubnetMask(mask)) { 85 return -1; 86 } 87 88 String[] parts = mask.split("\\."); 89 StringBuilder binary = new StringBuilder(); 90 for (String part : parts) { 91 int num = Integer.parseInt(part); 92 binary.append(String.format("%8s", Integer.toBinaryString(num)).replace(' ', '0')); 93 } 94 95 int count = 0; 96 for (char c : binary.toString().toCharArray()) { 97 if (c == '1') count++; 98 } 99 return count; 100 } 101 102 /** 103 * 获取IP类型 104 * @param firstOctet 第一个八位字节 105 * @return IP类型 106 */ 107 public String getIPClass(int firstOctet) { 108 if (firstOctet >= 1 && firstOctet <= 126) { 109 return "A类"; 110 } else if (firstOctet >= 128 && firstOctet <= 191) { 111 return "B类"; 112 } else if (firstOctet >= 192 && firstOctet <= 223) { 113 return "C类"; 114 } else if (firstOctet >= 224 && firstOctet <= 239) { 115 return "D类 (多播)"; 116 } else if (firstOctet >= 240 && firstOctet <= 255) { 117 return "E类 (保留)"; 118 } else { 119 return "未知"; 120 } 121 } 122 123 /** 124 * 判断是否为私有IP 125 * @param parts IP地址的四个部分 126 * @return 是否为私有IP 127 */ 128 public boolean isPrivateIP(int[] parts) { 129 if (parts.length != 4) { 130 return false; 131 } 132 133 int a = parts[0]; 134 int b = parts[1]; 135 136 // A类私有: 10.0.0.0 - 10.255.255.255 137 if (a == 10) { 138 return true; 139 } 140 141 // B类私有: 172.16.0.0 - 172.31.255.255 142 if (a == 172 && b >= 16 && b <= 31) { 143 return true; 144 } 145 146 // C类私有: 192.168.0.0 - 192.168.255.255 147 if (a == 192 && b == 168) { 148 return true; 149 } 150 151 // 链路本地: 169.254.0.0 - 169.254.255.255 152 if (a == 169 && b == 254) { 153 return true; 154 } 155 156 // 回环地址: 127.0.0.0 - 127.255.255.255 157 if (a == 127) { 158 return true; 159 } 160 161 return false; 162 } 163 164 /** 165 * 网络分析结果类 166 */ 167 public static class NetworkResult { 168 public String ipAddress; 169 public String subnetMask; 170 public String cidr; 171 public String networkAddress; 172 public String broadcastAddress; 173 public int usableHosts; 174 public int totalHosts; 175 public String firstUsableIP; 176 public String lastUsableIP; 177 public String gatewayIP; 178 public String dnsIP; 179 public String ipClass; 180 public boolean isPrivate; 181 public String ipBinary; 182 public String subnetBinary; 183 public String networkBinary; 184 } 185 186 /** 187 * 分析网络 188 * @param ip IP地址 189 * @param mask 子网掩码 190 * @return 分析结果 191 * @throws IllegalArgumentException 如果输入无效 192 */ 193 public NetworkResult analyzeNetwork(String ip, String mask) throws IllegalArgumentException { 194 if (!validateIP(ip)) { 195 throw new IllegalArgumentException("无效的IP地址格式"); 196 } 197 198 if (!validateSubnetMask(mask)) { 199 throw new IllegalArgumentException("无效的子网掩码格式"); 200 } 201 202 // 解析IP和掩码 203 String[] ipParts = ip.split("\\."); 204 String[] maskParts = mask.split("\\."); 205 206 int[] ipNums = new int[4]; 207 int[] maskNums = new int[4]; 208 209 for (int i = 0; i < 4; i++) { 210 ipNums[i] = Integer.parseInt(ipParts[i]); 211 maskNums[i] = Integer.parseInt(maskParts[i]); 212 } 213 214 // 计算网络地址 215 int[] networkNums = new int[4]; 216 for (int i = 0; i < 4; i++) { 217 networkNums[i] = ipNums[i] & maskNums[i]; 218 } 219 String networkAddress = String.format("%d.%d.%d.%d", 220 networkNums[0], networkNums[1], networkNums[2], networkNums[3]); 221 222 // 计算广播地址 223 int[] broadcastNums = new int[4]; 224 for (int i = 0; i < 4; i++) { 225 broadcastNums[i] = ipNums[i] | (255 - maskNums[i]); 226 } 227 String broadcastAddress = String.format("%d.%d.%d.%d", 228 broadcastNums[0], broadcastNums[1], broadcastNums[2], broadcastNums[3]); 229 230 // 计算CIDR 231 int cidr = subnetMaskToCidr(mask); 232 233 // 计算可用主机数 234 int totalHosts = (int) Math.pow(2, 32 - cidr); 235 int usableHosts = totalHosts - 2; 236 237 // 计算第一个和最后一个可用IP 238 int[] firstUsableNums = networkNums.clone(); 239 firstUsableNums[3]++; 240 String firstUsableIP = String.format("%d.%d.%d.%d", 241 firstUsableNums[0], firstUsableNums[1], firstUsableNums[2], firstUsableNums[3]); 242 243 int[] lastUsableNums = broadcastNums.clone(); 244 lastUsableNums[3]--; 245 String lastUsableIP = String.format("%d.%d.%d.%d", 246 lastUsableNums[0], lastUsableNums[1], lastUsableNums[2], lastUsableNums[3]); 247 248 // 计算网关IP (通常是第一个可用IP) 249 String gatewayIP = firstUsableIP; 250 251 // 计算DNS IP (通常是第二个可用IP) 252 int[] dnsNums = firstUsableNums.clone(); 253 dnsNums[3]++; 254 String dnsIP = String.format("%d.%d.%d.%d", 255 dnsNums[0], dnsNums[1], dnsNums[2], dnsNums[3]); 256 257 // 判断IP类型 258 String ipClass = getIPClass(ipNums[0]); 259 boolean isPrivate = isPrivateIP(ipNums); 260 261 // 二进制表示 262 String ipBinary = String.format("%8s.%8s.%8s.%8s", 263 Integer.toBinaryString(ipNums[0]), 264 Integer.toBinaryString(ipNums[1]), 265 Integer.toBinaryString(ipNums[2]), 266 Integer.toBinaryString(ipNums[3])).replace(' ', '0'); 267 268 String subnetBinary = String.format("%8s.%8s.%8s.%8s", 269 Integer.toBinaryString(maskNums[0]), 270 Integer.toBinaryString(maskNums[1]), 271 Integer.toBinaryString(maskNums[2]), 272 Integer.toBinaryString(maskNums[3])).replace(' ', '0'); 273 274 String networkBinary = String.format("%8s.%8s.%8s.%8s", 275 Integer.toBinaryString(networkNums[0]), 276 Integer.toBinaryString(networkNums[1]), 277 Integer.toBinaryString(networkNums[2]), 278 Integer.toBinaryString(networkNums[3])).replace(' ', '0'); 279 280 NetworkResult result = new NetworkResult(); 281 result.ipAddress = ip; 282 result.subnetMask = mask; 283 result.cidr = "/" + cidr; 284 result.networkAddress = networkAddress; 285 result.broadcastAddress = broadcastAddress; 286 result.usableHosts = usableHosts; 287 result.totalHosts = totalHosts; 288 result.firstUsableIP = firstUsableIP; 289 result.lastUsableIP = lastUsableIP; 290 result.gatewayIP = gatewayIP; 291 result.dnsIP = dnsIP; 292 result.ipClass = ipClass; 293 result.isPrivate = isPrivate; 294 result.ipBinary = ipBinary; 295 result.subnetBinary = subnetBinary; 296 result.networkBinary = networkBinary; 297 298 return result; 299 } 300 301 public static void main(String[] args) { 302 IPAnalyzer analyzer = new IPAnalyzer(); 303 304 // 示例1: 分析192.168.1.100/24网络 305 try { 306 NetworkResult result = analyzer.analyzeNetwork("192.168.1.100", "255.255.255.0"); 307 System.out.println("网络分析结果:"); 308 System.out.println(" IP地址: " + result.ipAddress); 309 System.out.println(" 子网掩码: " + result.subnetMask); 310 System.out.println(" CIDR表示: " + result.cidr); 311 System.out.println(" 网络地址: " + result.networkAddress); 312 System.out.println(" 广播地址: " + result.broadcastAddress); 313 System.out.println(" 可用IP数量: " + result.usableHosts); 314 System.out.println(" 总IP数量: " + result.totalHosts); 315 System.out.println(" IP地址范围: " + result.firstUsableIP + " - " + result.lastUsableIP); 316 System.out.println(" 网关地址: " + result.gatewayIP); 317 System.out.println(" DNS服务器: " + result.dnsIP); 318 System.out.println(" IP地址类型: " + result.ipClass); 319 System.out.println(" 是否为私有IP: " + result.isPrivate); 320 } catch (IllegalArgumentException e) { 321 System.out.println("分析失败: " + e.getMessage()); 322 } 323 324 System.out.println(); 325 326 // 示例2: 验证IP地址 327 System.out.println("IP地址验证: " + analyzer.validateIP("192.168.1.100")); // true 328 System.out.println("IP地址验证: " + analyzer.validateIP("256.1.2.3")); // false 329 330 // 示例3: 验证子网掩码 331 System.out.println("子网掩码验证: " + analyzer.validateSubnetMask("255.255.255.0")); // true 332 System.out.println("子网掩码验证: " + analyzer.validateSubnetMask("255.255.255.1")); // false 333 334 // 示例4: CIDR转换 335 System.out.println("CIDR转掩码: " + analyzer.cidrToSubnetMask(24)); // 255.255.255.0 336 System.out.println("掩码转CIDR: " + analyzer.subnetMaskToCidr("255.255.255.0")); // 24 337 } 338} -
ip_analyzer (JS)
1/** 2 * IP地址分析工具 - JavaScript版本 3 * 支持IP地址验证、子网计算、网络信息分析 4 */ 5 6class IPAnalyzer { 7 constructor() { 8 this.ipAddress = ''; 9 this.subnetMask = ''; 10 } 11 12 /** 13 * 验证IP地址格式 14 * @param {string} ip - IP地址 15 * @returns {boolean} 是否有效 16 */ 17 validateIP(ip) { 18 const ipRegex = /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/; 19 return ipRegex.test(ip); 20 } 21 22 /** 23 * 验证子网掩码格式 24 * @param {string} mask - 子网掩码 25 * @returns {boolean} 是否有效 26 */ 27 validateSubnetMask(mask) { 28 const maskRegex = /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/; 29 if (!maskRegex.test(mask)) return false; 30 31 const parts = mask.split('.').map(Number); 32 const binary = parts.map(part => part.toString(2).padStart(8, '0')).join(''); 33 return /^1*0*$/.test(binary); 34 } 35 36 /** 37 * CIDR转子网掩码 38 * @param {number} cidr - CIDR值 39 * @returns {string} 子网掩码 40 */ 41 cidrToSubnetMask(cidr) { 42 const mask = (0xFFFFFFFF << (32 - cidr)) >>> 0; 43 return [ 44 (mask >>> 24) & 255, 45 (mask >>> 16) & 255, 46 (mask >>> 8) & 255, 47 mask & 255 48 ].join('.'); 49 } 50 51 /** 52 * 子网掩码转CIDR 53 * @param {string} mask - 子网掩码 54 * @returns {number} CIDR值 55 */ 56 subnetMaskToCidr(mask) { 57 const parts = mask.split('.').map(Number); 58 const binary = parts.map(part => part.toString(2).padStart(8, '0')).join(''); 59 return binary.split('1').length - 1; 60 } 61 62 /** 63 * 获取IP类型 64 * @param {number} firstOctet - 第一个八位字节 65 * @returns {string} IP类型 66 */ 67 getIPClass(firstOctet) { 68 if (firstOctet >= 1 && firstOctet <= 126) return 'A类'; 69 if (firstOctet >= 128 && firstOctet <= 191) return 'B类'; 70 if (firstOctet >= 192 && firstOctet <= 223) return 'C类'; 71 if (firstOctet >= 224 && firstOctet <= 239) return 'D类 (多播)'; 72 if (firstOctet >= 240 && firstOctet <= 255) return 'E类 (保留)'; 73 return '未知'; 74 } 75 76 /** 77 * 判断是否为私有IP 78 * @param {Array} parts - IP地址的四个部分 79 * @returns {boolean} 是否为私有IP 80 */ 81 isPrivateIP(parts) { 82 const [a, b, c, d] = parts; 83 84 // A类私有: 10.0.0.0 - 10.255.255.255 85 if (a === 10) return true; 86 87 // B类私有: 172.16.0.0 - 172.31.255.255 88 if (a === 172 && b >= 16 && b <= 31) return true; 89 90 // C类私有: 192.168.0.0 - 192.168.255.255 91 if (a === 192 && b === 168) return true; 92 93 // 链路本地: 169.254.0.0 - 169.254.255.255 94 if (a === 169 && b === 254) return true; 95 96 // 回环地址: 127.0.0.0 - 127.255.255.255 97 if (a === 127) return true; 98 99 return false; 100 } 101 102 /** 103 * 分析网络 104 * @param {string} ip - IP地址 105 * @param {string} mask - 子网掩码 106 * @returns {Object} 分析结果 107 */ 108 analyzeNetwork(ip, mask) { 109 if (!this.validateIP(ip)) { 110 throw new Error('无效的IP地址格式'); 111 } 112 113 if (!this.validateSubnetMask(mask)) { 114 throw new Error('无效的子网掩码格式'); 115 } 116 117 const ipParts = ip.split('.').map(Number); 118 const maskParts = mask.split('.').map(Number); 119 120 // 计算网络地址 121 const networkParts = ipParts.map((part, i) => part & maskParts[i]); 122 const networkAddress = networkParts.join('.'); 123 124 // 计算广播地址 125 const broadcastParts = ipParts.map((part, i) => part | (255 - maskParts[i])); 126 const broadcastAddress = broadcastParts.join('.'); 127 128 // 计算CIDR 129 const cidr = this.subnetMaskToCidr(mask); 130 131 // 计算可用主机数 132 const totalHosts = Math.pow(2, 32 - cidr); 133 const usableHosts = totalHosts - 2; 134 135 // 计算第一个和最后一个可用IP 136 const firstUsableParts = networkParts.map((part, i) => i === 3 ? part + 1 : part); 137 const lastUsableParts = broadcastParts.map((part, i) => i === 3 ? part - 1 : part); 138 const firstUsableIP = firstUsableParts.join('.'); 139 const lastUsableIP = lastUsableParts.join('.'); 140 141 // 计算网关IP (通常是第一个可用IP) 142 const gatewayIP = firstUsableIP; 143 144 // 计算DNS IP (通常是第二个可用IP) 145 const dnsParts = firstUsableParts.map((part, i) => i === 3 ? part + 1 : part); 146 const dnsIP = dnsParts.join('.'); 147 148 // 判断IP类型 149 const ipClass = this.getIPClass(ipParts[0]); 150 const isPrivate = this.isPrivateIP(ipParts); 151 152 // 二进制表示 153 const ipBinary = ipParts.map(part => part.toString(2).padStart(8, '0')).join('.'); 154 const subnetBinary = maskParts.map(part => part.toString(2).padStart(8, '0')).join('.'); 155 const networkBinary = networkParts.map(part => part.toString(2).padStart(8, '0')).join('.'); 156 157 return { 158 ipAddress: ip, 159 subnetMask: mask, 160 cidr: '/' + cidr, 161 networkAddress: networkAddress, 162 broadcastAddress: broadcastAddress, 163 usableHosts: usableHosts, 164 totalHosts: totalHosts, 165 firstUsableIP: firstUsableIP, 166 lastUsableIP: lastUsableIP, 167 gatewayIP: gatewayIP, 168 dnsIP: dnsIP, 169 ipClass: ipClass, 170 isPrivate: isPrivate, 171 ipBinary: ipBinary, 172 subnetBinary: subnetBinary, 173 networkBinary: networkBinary 174 }; 175 } 176} 177 178// 使用示例 179const analyzer = new IPAnalyzer(); 180 181// 示例1: 分析192.168.1.100/24网络 182try { 183 const result = analyzer.analyzeNetwork('192.168.1.100', '255.255.255.0'); 184 console.log('网络分析结果:', result); 185} catch (error) { 186 console.error('分析失败:', error.message); 187} 188 189// 示例2: 验证IP地址 190console.log('IP地址验证:', analyzer.validateIP('192.168.1.100')); // true 191console.log('IP地址验证:', analyzer.validateIP('256.1.2.3')); // false 192 193// 示例3: 验证子网掩码 194console.log('子网掩码验证:', analyzer.validateSubnetMask('255.255.255.0')); // true 195console.log('子网掩码验证:', analyzer.validateSubnetMask('255.255.255.1')); // false 196 197// 示例4: CIDR转换 198console.log('CIDR转掩码:', analyzer.cidrToSubnetMask(24)); // 255.255.255.0 199console.log('掩码转CIDR:', analyzer.subnetMaskToCidr('255.255.255.0')); // 24 -
ip_analyzer (PHP)
1<?php 2/** 3 * IP地址分析工具 - PHP版本 4 * 支持IP地址验证、子网计算、网络信息分析 5 */ 6 7class IPAnalyzer { 8 private $ipAddress; 9 private $subnetMask; 10 11 public function __construct() { 12 $this->ipAddress = ''; 13 $this->subnetMask = ''; 14 } 15 16 /** 17 * 验证IP地址格式 18 * @param string $ip IP地址字符串 19 * @return bool 是否有效 20 */ 21 public function validateIP($ip) { 22 return filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) !== false; 23 } 24 25 /** 26 * 验证子网掩码格式 27 * @param string $mask 子网掩码字符串 28 * @return bool 是否有效 29 */ 30 public function validateSubnetMask($mask) { 31 // 检查格式 32 if (!filter_var($mask, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) { 33 return false; 34 } 35 36 // 检查是否为有效的子网掩码 37 $parts = explode('.', $mask); 38 $binary = ''; 39 foreach ($parts as $part) { 40 $binary .= str_pad(decbin($part), 8, '0', STR_PAD_LEFT); 41 } 42 43 // 检查是否为连续的1后跟连续的0 44 $lastOne = strrpos($binary, '1'); 45 $firstZero = strpos($binary, '0'); 46 47 if ($lastOne === false || $firstZero === false) { 48 return false; 49 } 50 51 return $lastOne < $firstZero; 52 } 53 54 /** 55 * CIDR转子网掩码 56 * @param int $cidr CIDR值 57 * @return string 子网掩码 58 */ 59 public function cidrToSubnetMask($cidr) { 60 if ($cidr < 0 || $cidr > 32) { 61 return ''; 62 } 63 64 $mask = (0xFFFFFFFF << (32 - $cidr)) & 0xFFFFFFFF; 65 return sprintf('%d.%d.%d.%d', 66 ($mask >> 24) & 255, 67 ($mask >> 16) & 255, 68 ($mask >> 8) & 255, 69 $mask & 255); 70 } 71 72 /** 73 * 子网掩码转CIDR 74 * @param string $mask 子网掩码 75 * @return int CIDR值 76 */ 77 public function subnetMaskToCidr($mask) { 78 if (!$this->validateSubnetMask($mask)) { 79 return -1; 80 } 81 82 $parts = explode('.', $mask); 83 $binary = ''; 84 foreach ($parts as $part) { 85 $binary .= str_pad(decbin($part), 8, '0', STR_PAD_LEFT); 86 } 87 88 return substr_count($binary, '1'); 89 } 90 91 /** 92 * 获取IP类型 93 * @param int $firstOctet 第一个八位字节 94 * @return string IP类型 95 */ 96 public function getIPClass($firstOctet) { 97 if ($firstOctet >= 1 && $firstOctet <= 126) { 98 return 'A类'; 99 } elseif ($firstOctet >= 128 && $firstOctet <= 191) { 100 return 'B类'; 101 } elseif ($firstOctet >= 192 && $firstOctet <= 223) { 102 return 'C类'; 103 } elseif ($firstOctet >= 224 && $firstOctet <= 239) { 104 return 'D类 (多播)'; 105 } elseif ($firstOctet >= 240 && $firstOctet <= 255) { 106 return 'E类 (保留)'; 107 } else { 108 return '未知'; 109 } 110 } 111 112 /** 113 * 判断是否为私有IP 114 * @param array $parts IP地址的四个部分 115 * @return bool 是否为私有IP 116 */ 117 public function isPrivateIP($parts) { 118 if (count($parts) != 4) { 119 return false; 120 } 121 122 $a = $parts[0]; 123 $b = $parts[1]; 124 125 // A类私有: 10.0.0.0 - 10.255.255.255 126 if ($a == 10) { 127 return true; 128 } 129 130 // B类私有: 172.16.0.0 - 172.31.255.255 131 if ($a == 172 && $b >= 16 && $b <= 31) { 132 return true; 133 } 134 135 // C类私有: 192.168.0.0 - 192.168.255.255 136 if ($a == 192 && $b == 168) { 137 return true; 138 } 139 140 // 链路本地: 169.254.0.0 - 169.254.255.255 141 if ($a == 169 && $b == 254) { 142 return true; 143 } 144 145 // 回环地址: 127.0.0.0 - 127.255.255.255 146 if ($a == 127) { 147 return true; 148 } 149 150 return false; 151 } 152 153 /** 154 * 分析网络 155 * @param string $ip IP地址 156 * @param string $mask 子网掩码 157 * @return array 分析结果 158 * @throws Exception 如果输入无效 159 */ 160 public function analyzeNetwork($ip, $mask) { 161 if (!$this->validateIP($ip)) { 162 throw new Exception('无效的IP地址格式'); 163 } 164 165 if (!$this->validateSubnetMask($mask)) { 166 throw new Exception('无效的子网掩码格式'); 167 } 168 169 // 解析IP和掩码 170 $ipParts = explode('.', $ip); 171 $maskParts = explode('.', $mask); 172 173 $ipNums = array_map('intval', $ipParts); 174 $maskNums = array_map('intval', $maskParts); 175 176 // 计算网络地址 177 $networkNums = []; 178 for ($i = 0; $i < 4; $i++) { 179 $networkNums[$i] = $ipNums[$i] & $maskNums[$i]; 180 } 181 $networkAddress = implode('.', $networkNums); 182 183 // 计算广播地址 184 $broadcastNums = []; 185 for ($i = 0; $i < 4; $i++) { 186 $broadcastNums[$i] = $ipNums[$i] | (255 - $maskNums[$i]); 187 } 188 $broadcastAddress = implode('.', $broadcastNums); 189 190 // 计算CIDR 191 $cidr = $this->subnetMaskToCidr($mask); 192 193 // 计算可用主机数 194 $totalHosts = pow(2, 32 - $cidr); 195 $usableHosts = $totalHosts - 2; 196 197 // 计算第一个和最后一个可用IP 198 $firstUsableNums = $networkNums; 199 $firstUsableNums[3]++; 200 $firstUsableIP = implode('.', $firstUsableNums); 201 202 $lastUsableNums = $broadcastNums; 203 $lastUsableNums[3]--; 204 $lastUsableIP = implode('.', $lastUsableNums); 205 206 // 计算网关IP (通常是第一个可用IP) 207 $gatewayIP = $firstUsableIP; 208 209 // 计算DNS IP (通常是第二个可用IP) 210 $dnsNums = $firstUsableNums; 211 $dnsNums[3]++; 212 $dnsIP = implode('.', $dnsNums); 213 214 // 判断IP类型 215 $ipClass = $this->getIPClass($ipNums[0]); 216 $isPrivate = $this->isPrivateIP($ipNums); 217 218 // 二进制表示 219 $ipBinary = implode('.', array_map(function($num) { 220 return str_pad(decbin($num), 8, '0', STR_PAD_LEFT); 221 }, $ipNums)); 222 223 $subnetBinary = implode('.', array_map(function($num) { 224 return str_pad(decbin($num), 8, '0', STR_PAD_LEFT); 225 }, $maskNums)); 226 227 $networkBinary = implode('.', array_map(function($num) { 228 return str_pad(decbin($num), 8, '0', STR_PAD_LEFT); 229 }, $networkNums)); 230 231 return [ 232 'ipAddress' => $ip, 233 'subnetMask' => $mask, 234 'cidr' => '/' . $cidr, 235 'networkAddress' => $networkAddress, 236 'broadcastAddress' => $broadcastAddress, 237 'usableHosts' => $usableHosts, 238 'totalHosts' => $totalHosts, 239 'firstUsableIP' => $firstUsableIP, 240 'lastUsableIP' => $lastUsableIP, 241 'gatewayIP' => $gatewayIP, 242 'dnsIP' => $dnsIP, 243 'ipClass' => $ipClass, 244 'isPrivate' => $isPrivate, 245 'ipBinary' => $ipBinary, 246 'subnetBinary' => $subnetBinary, 247 'networkBinary' => $networkBinary 248 ]; 249 } 250} 251 252// 使用示例 253$analyzer = new IPAnalyzer(); 254 255// 示例1: 分析192.168.1.100/24网络 256try { 257 $result = $analyzer->analyzeNetwork('192.168.1.100', '255.255.255.0'); 258 echo "网络分析结果:\n"; 259 foreach ($result as $key => $value) { 260 echo " $key: " . (is_bool($value) ? ($value ? 'true' : 'false') : $value) . "\n"; 261 } 262} catch (Exception $e) { 263 echo "分析失败: " . $e->getMessage() . "\n"; 264} 265 266echo "\n"; 267 268// 示例2: 验证IP地址 269echo "IP地址验证: " . ($analyzer->validateIP('192.168.1.100') ? 'true' : 'false') . "\n"; // true 270echo "IP地址验证: " . ($analyzer->validateIP('256.1.2.3') ? 'true' : 'false') . "\n"; // false 271 272// 示例3: 验证子网掩码 273echo "子网掩码验证: " . ($analyzer->validateSubnetMask('255.255.255.0') ? 'true' : 'false') . "\n"; // true 274echo "子网掩码验证: " . ($analyzer->validateSubnetMask('255.255.255.1') ? 'true' : 'false') . "\n"; // false 275 276// 示例4: CIDR转换 277echo "CIDR转掩码: " . $analyzer->cidrToSubnetMask(24) . "\n"; // 255.255.255.0 278echo "掩码转CIDR: " . $analyzer->subnetMaskToCidr('255.255.255.0') . "\n"; // 24 279?> -
ip_analyzer (PY)
1#!/usr/bin/env python3 2# -*- coding: utf-8 -*- 3""" 4IP地址分析工具 - Python版本 5支持IP地址验证、子网计算、网络信息分析 6""" 7 8import re 9import ipaddress 10from typing import Dict, List, Tuple, Optional 11 12 13class IPAnalyzer: 14 """IP地址分析工具类""" 15 16 def __init__(self): 17 self.ip_address = "" 18 self.subnet_mask = "" 19 20 def validate_ip(self, ip: str) -> bool: 21 """ 22 验证IP地址格式 23 24 Args: 25 ip: IP地址字符串 26 27 Returns: 28 bool: 是否有效 29 """ 30 try: 31 ipaddress.ip_address(ip) 32 return True 33 except ValueError: 34 return False 35 36 def validate_subnet_mask(self, mask: str) -> bool: 37 """ 38 验证子网掩码格式 39 40 Args: 41 mask: 子网掩码字符串 42 43 Returns: 44 bool: 是否有效 45 """ 46 try: 47 # 检查格式 48 if not re.match(r'^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$', mask): 49 return False 50 51 # 检查是否为有效的子网掩码 52 parts = [int(x) for x in mask.split('.')] 53 binary = ''.join([format(part, '08b') for part in parts]) 54 return re.match(r'^1*0*$', binary) is not None 55 except: 56 return False 57 58 def cidr_to_subnet_mask(self, cidr: int) -> str: 59 """ 60 CIDR转子网掩码 61 62 Args: 63 cidr: CIDR值 64 65 Returns: 66 str: 子网掩码 67 """ 68 if not 0 <= cidr <= 32: 69 raise ValueError("CIDR值必须在0-32之间") 70 71 mask = (0xFFFFFFFF << (32 - cidr)) & 0xFFFFFFFF 72 return '.'.join([str((mask >> (24 - i * 8)) & 255) for i in range(4)]) 73 74 def subnet_mask_to_cidr(self, mask: str) -> int: 75 """ 76 子网掩码转CIDR 77 78 Args: 79 mask: 子网掩码 80 81 Returns: 82 int: CIDR值 83 """ 84 if not self.validate_subnet_mask(mask): 85 raise ValueError("无效的子网掩码") 86 87 parts = [int(x) for x in mask.split('.')] 88 binary = ''.join([format(part, '08b') for part in parts]) 89 return binary.count('1') 90 91 def get_ip_class(self, first_octet: int) -> str: 92 """ 93 获取IP类型 94 95 Args: 96 first_octet: 第一个八位字节 97 98 Returns: 99 str: IP类型 100 """ 101 if 1 <= first_octet <= 126: 102 return "A类" 103 elif 128 <= first_octet <= 191: 104 return "B类" 105 elif 192 <= first_octet <= 223: 106 return "C类" 107 elif 224 <= first_octet <= 239: 108 return "D类 (多播)" 109 elif 240 <= first_octet <= 255: 110 return "E类 (保留)" 111 else: 112 return "未知" 113 114 def is_private_ip(self, ip_parts: List[int]) -> bool: 115 """ 116 判断是否为私有IP 117 118 Args: 119 ip_parts: IP地址的四个部分 120 121 Returns: 122 bool: 是否为私有IP 123 """ 124 a, b, c, d = ip_parts 125 126 # A类私有: 10.0.0.0 - 10.255.255.255 127 if a == 10: 128 return True 129 130 # B类私有: 172.16.0.0 - 172.31.255.255 131 if a == 172 and 16 <= b <= 31: 132 return True 133 134 # C类私有: 192.168.0.0 - 192.168.255.255 135 if a == 192 and b == 168: 136 return True 137 138 # 链路本地: 169.254.0.0 - 169.254.255.255 139 if a == 169 and b == 254: 140 return True 141 142 # 回环地址: 127.0.0.0 - 127.255.255.255 143 if a == 127: 144 return True 145 146 return False 147 148 def analyze_network(self, ip: str, mask: str) -> Dict: 149 """ 150 分析网络 151 152 Args: 153 ip: IP地址 154 mask: 子网掩码 155 156 Returns: 157 Dict: 分析结果 158 """ 159 if not self.validate_ip(ip): 160 raise ValueError("无效的IP地址格式") 161 162 if not self.validate_subnet_mask(mask): 163 raise ValueError("无效的子网掩码格式") 164 165 # 使用ipaddress模块进行网络计算 166 network = ipaddress.IPv4Network(f"{ip}/{mask}", strict=False) 167 168 ip_parts = [int(x) for x in ip.split('.')] 169 mask_parts = [int(x) for x in mask.split('.')] 170 171 # 计算网络地址 172 network_parts = [ip_parts[i] & mask_parts[i] for i in range(4)] 173 network_address = '.'.join(map(str, network_parts)) 174 175 # 计算广播地址 176 broadcast_parts = [ip_parts[i] | (255 - mask_parts[i]) for i in range(4)] 177 broadcast_address = '.'.join(map(str, broadcast_parts)) 178 179 # 计算CIDR 180 cidr = self.subnet_mask_to_cidr(mask) 181 182 # 计算可用主机数 183 total_hosts = 2 ** (32 - cidr) 184 usable_hosts = total_hosts - 2 185 186 # 计算第一个和最后一个可用IP 187 first_usable_parts = network_parts.copy() 188 first_usable_parts[3] += 1 189 first_usable_ip = '.'.join(map(str, first_usable_parts)) 190 191 last_usable_parts = broadcast_parts.copy() 192 last_usable_parts[3] -= 1 193 last_usable_ip = '.'.join(map(str, last_usable_parts)) 194 195 # 计算网关IP (通常是第一个可用IP) 196 gateway_ip = first_usable_ip 197 198 # 计算DNS IP (通常是第二个可用IP) 199 dns_parts = first_usable_parts.copy() 200 dns_parts[3] += 1 201 dns_ip = '.'.join(map(str, dns_parts)) 202 203 # 判断IP类型 204 ip_class = self.get_ip_class(ip_parts[0]) 205 is_private = self.is_private_ip(ip_parts) 206 207 # 二进制表示 208 ip_binary = '.'.join([format(part, '08b') for part in ip_parts]) 209 subnet_binary = '.'.join([format(part, '08b') for part in mask_parts]) 210 network_binary = '.'.join([format(part, '08b') for part in network_parts]) 211 212 return { 213 'ipAddress': ip, 214 'subnetMask': mask, 215 'cidr': f'/{cidr}', 216 'networkAddress': network_address, 217 'broadcastAddress': broadcast_address, 218 'usableHosts': usable_hosts, 219 'totalHosts': total_hosts, 220 'firstUsableIP': first_usable_ip, 221 'lastUsableIP': last_usable_ip, 222 'gatewayIP': gateway_ip, 223 'dnsIP': dns_ip, 224 'ipClass': ip_class, 225 'isPrivate': is_private, 226 'ipBinary': ip_binary, 227 'subnetBinary': subnet_binary, 228 'networkBinary': network_binary 229 } 230 231 232def main(): 233 """主函数 - 使用示例""" 234 analyzer = IPAnalyzer() 235 236 # 示例1: 分析192.168.1.100/24网络 237 try: 238 result = analyzer.analyze_network('192.168.1.100', '255.255.255.0') 239 print("网络分析结果:") 240 for key, value in result.items(): 241 print(f" {key}: {value}") 242 except ValueError as e: 243 print(f"分析失败: {e}") 244 245 print() 246 247 # 示例2: 验证IP地址 248 print(f"IP地址验证: {analyzer.validate_ip('192.168.1.100')}") # True 249 print(f"IP地址验证: {analyzer.validate_ip('256.1.2.3')}") # False 250 251 # 示例3: 验证子网掩码 252 print(f"子网掩码验证: {analyzer.validate_subnet_mask('255.255.255.0')}") # True 253 print(f"子网掩码验证: {analyzer.validate_subnet_mask('255.255.255.1')}") # False 254 255 # 示例4: CIDR转换 256 print(f"CIDR转掩码: {analyzer.cidr_to_subnet_mask(24)}") # 255.255.255.0 257 print(f"掩码转CIDR: {analyzer.subnet_mask_to_cidr('255.255.255.0')}") # 24 258 259 260if __name__ == "__main__": 261 main()
网络知识
IP地址分类
A类: 1.0.0.0 - 126.255.255.255 (默认掩码: 255.0.0.0)
B类: 128.0.0.0 - 191.255.255.255 (默认掩码: 255.255.0.0)
C类: 192.0.0.0 - 223.255.255.255 (默认掩码: 255.255.255.0)
D类: 224.0.0.0 - 239.255.255.255 (多播地址)
E类: 240.0.0.0 - 255.255.255.255 (保留地址)
私有IP地址范围
A类私有: 10.0.0.0 - 10.255.255.255
B类私有: 172.16.0.0 - 172.31.255.255
C类私有: 192.168.0.0 - 192.168.255.255
链路本地: 169.254.0.0 - 169.254.255.255
回环地址: 127.0.0.0 - 127.255.255.255