CIDRをIPアドレスに展開ツール v2.0.3
IPv4形式のIPアドレスは192.168.0.1などの一般的な形式だけでなく、
192.168.0.1/24 などのネットマスク指定(/24部分)による範囲指定なども利用ができます。
これはCIDR形式、プレフィックス指定などとも呼ばれています。
ここではこのネットマスク指定によるIPアドレス範囲をIPアドレスに展開して表示します。
以下に、ネットマスク形式のIPアドレスを入力すると、
下部に対して、CIDR指定に含まれるIPアドレスが表示されます。
また範囲が広く、含まれるIPアドレスが多い場合には、
結果は「xxx.xxx.xxx.xxx – xxx.xxx.xxx.xxx」形式の範囲で表示します。
範囲表示された場合は、リンクをクリックすると範囲内のIPを再展開できます。
目次
CIDR形式 (185.165.46.0/23) から範囲内のIPアドレス展開
表示値でそのまま実行するとデモ動作の確認ができます。
CIDR展開情報
入力されたCIDRのネットワーク情報です。
属性 | 値 |
---|---|
入力IP範囲 | 185.165.46.0/23 |
ネットワーク(CIDR) | 185.165.46.0/23 |
サブネット表記 | 185.165.46.0/255.255.254.0 |
短縮表記 | 185.165.46 |
IPアドレス範囲 | 185.165.46.0 - 185.165.47.255 |
IPアドレス総数 | 512 |
ネットワークIP | 185.165.46.0 |
ブロードキャストIP | 185.165.47.255 |
ホストアドレス範囲 | 185.165.46.1 - 185.165.47.254 有効ホスト数( 510 台 ) |
サブネットマスク | 255.255.254.0 |
クラス属性 | クラスB |
IPアドレスの展開結果
IPアドレスの展開を行いました
No | IPアドレス範囲 |
---|---|
1 | 185.165.46.0 |
2 | 185.165.46.1 |
3 | 185.165.46.2 |
4 | 185.165.46.3 |
5 | 185.165.46.4 |
6 | 185.165.46.5 |
7 | 185.165.46.6 |
8 | 185.165.46.7 |
9 | 185.165.46.8 |
10 | 185.165.46.9 |
11 | 185.165.46.10 |
12 | 185.165.46.11 |
13 | 185.165.46.12 |
14 | 185.165.46.13 |
15 | 185.165.46.14 |
16 | 185.165.46.15 |
17 | 185.165.46.16 |
18 | 185.165.46.17 |
19 | 185.165.46.18 |
20 | 185.165.46.19 |
21 | 185.165.46.20 |
22 | 185.165.46.21 |
23 | 185.165.46.22 |
24 | 185.165.46.23 |
25 | 185.165.46.24 |
26 | 185.165.46.25 |
27 | 185.165.46.26 |
28 | 185.165.46.27 |
29 | 185.165.46.28 |
30 | 185.165.46.29 |
31 | 185.165.46.30 |
32 | 185.165.46.31 |
33 | 185.165.46.32 |
34 | 185.165.46.33 |
35 | 185.165.46.34 |
36 | 185.165.46.35 |
37 | 185.165.46.36 |
38 | 185.165.46.37 |
39 | 185.165.46.38 |
40 | 185.165.46.39 |
41 | 185.165.46.40 |
42 | 185.165.46.41 |
43 | 185.165.46.42 |
44 | 185.165.46.43 |
45 | 185.165.46.44 |
46 | 185.165.46.45 |
47 | 185.165.46.46 |
48 | 185.165.46.47 |
49 | 185.165.46.48 |
50 | 185.165.46.49 |
51 | 185.165.46.50 |
52 | 185.165.46.51 |
53 | 185.165.46.52 |
54 | 185.165.46.53 |
55 | 185.165.46.54 |
56 | 185.165.46.55 |
57 | 185.165.46.56 |
58 | 185.165.46.57 |
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60 | 185.165.46.59 |
61 | 185.165.46.60 |
62 | 185.165.46.61 |
63 | 185.165.46.62 |
64 | 185.165.46.63 |
65 | 185.165.46.64 |
66 | 185.165.46.65 |
67 | 185.165.46.66 |
68 | 185.165.46.67 |
69 | 185.165.46.68 |
70 | 185.165.46.69 |
71 | 185.165.46.70 |
72 | 185.165.46.71 |
73 | 185.165.46.72 |
74 | 185.165.46.73 |
75 | 185.165.46.74 |
76 | 185.165.46.75 |
77 | 185.165.46.76 |
78 | 185.165.46.77 |
79 | 185.165.46.78 |
80 | 185.165.46.79 |
81 | 185.165.46.80 |
82 | 185.165.46.81 |
83 | 185.165.46.82 |
84 | 185.165.46.83 |
85 | 185.165.46.84 |
86 | 185.165.46.85 |
87 | 185.165.46.86 |
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90 | 185.165.46.89 |
91 | 185.165.46.90 |
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94 | 185.165.46.93 |
95 | 185.165.46.94 |
96 | 185.165.46.95 |
97 | 185.165.46.96 |
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100 | 185.165.46.99 |
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166 | 185.165.46.165 |
167 | 185.165.46.166 |
168 | 185.165.46.167 |
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170 | 185.165.46.169 |
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180 | 185.165.46.179 |
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184 | 185.165.46.183 |
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204 | 185.165.46.203 |
205 | 185.165.46.204 |
206 | 185.165.46.205 |
207 | 185.165.46.206 |
208 | 185.165.46.207 |
209 | 185.165.46.208 |
210 | 185.165.46.209 |
211 | 185.165.46.210 |
212 | 185.165.46.211 |
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215 | 185.165.46.214 |
216 | 185.165.46.215 |
217 | 185.165.46.216 |
218 | 185.165.46.217 |
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227 | 185.165.46.226 |
228 | 185.165.46.227 |
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230 | 185.165.46.229 |
231 | 185.165.46.230 |
232 | 185.165.46.231 |
233 | 185.165.46.232 |
234 | 185.165.46.233 |
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236 | 185.165.46.235 |
237 | 185.165.46.236 |
238 | 185.165.46.237 |
239 | 185.165.46.238 |
240 | 185.165.46.239 |
241 | 185.165.46.240 |
242 | 185.165.46.241 |
243 | 185.165.46.242 |
244 | 185.165.46.243 |
245 | 185.165.46.244 |
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247 | 185.165.46.246 |
248 | 185.165.46.247 |
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250 | 185.165.46.249 |
251 | 185.165.46.250 |
252 | 185.165.46.251 |
253 | 185.165.46.252 |
254 | 185.165.46.253 |
255 | 185.165.46.254 |
256 | 185.165.46.255 |
257 | 185.165.47.0 |
258 | 185.165.47.1 |
259 | 185.165.47.2 |
260 | 185.165.47.3 |
261 | 185.165.47.4 |
262 | 185.165.47.5 |
263 | 185.165.47.6 |
264 | 185.165.47.7 |
265 | 185.165.47.8 |
266 | 185.165.47.9 |
267 | 185.165.47.10 |
268 | 185.165.47.11 |
269 | 185.165.47.12 |
270 | 185.165.47.13 |
271 | 185.165.47.14 |
272 | 185.165.47.15 |
273 | 185.165.47.16 |
274 | 185.165.47.17 |
275 | 185.165.47.18 |
276 | 185.165.47.19 |
277 | 185.165.47.20 |
278 | 185.165.47.21 |
279 | 185.165.47.22 |
280 | 185.165.47.23 |
281 | 185.165.47.24 |
282 | 185.165.47.25 |
283 | 185.165.47.26 |
284 | 185.165.47.27 |
285 | 185.165.47.28 |
286 | 185.165.47.29 |
287 | 185.165.47.30 |
288 | 185.165.47.31 |
289 | 185.165.47.32 |
290 | 185.165.47.33 |
291 | 185.165.47.34 |
292 | 185.165.47.35 |
293 | 185.165.47.36 |
294 | 185.165.47.37 |
295 | 185.165.47.38 |
296 | 185.165.47.39 |
297 | 185.165.47.40 |
298 | 185.165.47.41 |
299 | 185.165.47.42 |
300 | 185.165.47.43 |
301 | 185.165.47.44 |
302 | 185.165.47.45 |
303 | 185.165.47.46 |
304 | 185.165.47.47 |
305 | 185.165.47.48 |
306 | 185.165.47.49 |
307 | 185.165.47.50 |
308 | 185.165.47.51 |
309 | 185.165.47.52 |
310 | 185.165.47.53 |
311 | 185.165.47.54 |
312 | 185.165.47.55 |
313 | 185.165.47.56 |
314 | 185.165.47.57 |
315 | 185.165.47.58 |
316 | 185.165.47.59 |
317 | 185.165.47.60 |
318 | 185.165.47.61 |
319 | 185.165.47.62 |
320 | 185.165.47.63 |
321 | 185.165.47.64 |
322 | 185.165.47.65 |
323 | 185.165.47.66 |
324 | 185.165.47.67 |
325 | 185.165.47.68 |
326 | 185.165.47.69 |
327 | 185.165.47.70 |
328 | 185.165.47.71 |
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330 | 185.165.47.73 |
331 | 185.165.47.74 |
332 | 185.165.47.75 |
333 | 185.165.47.76 |
334 | 185.165.47.77 |
335 | 185.165.47.78 |
336 | 185.165.47.79 |
337 | 185.165.47.80 |
338 | 185.165.47.81 |
339 | 185.165.47.82 |
340 | 185.165.47.83 |
341 | 185.165.47.84 |
342 | 185.165.47.85 |
343 | 185.165.47.86 |
344 | 185.165.47.87 |
345 | 185.165.47.88 |
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347 | 185.165.47.90 |
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351 | 185.165.47.94 |
352 | 185.165.47.95 |
353 | 185.165.47.96 |
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358 | 185.165.47.101 |
359 | 185.165.47.102 |
360 | 185.165.47.103 |
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362 | 185.165.47.105 |
363 | 185.165.47.106 |
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367 | 185.165.47.110 |
368 | 185.165.47.111 |
369 | 185.165.47.112 |
370 | 185.165.47.113 |
371 | 185.165.47.114 |
372 | 185.165.47.115 |
373 | 185.165.47.116 |
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375 | 185.165.47.118 |
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398 | 185.165.47.141 |
399 | 185.165.47.142 |
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408 | 185.165.47.151 |
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417 | 185.165.47.160 |
418 | 185.165.47.161 |
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420 | 185.165.47.163 |
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440 | 185.165.47.183 |
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459 | 185.165.47.202 |
460 | 185.165.47.203 |
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470 | 185.165.47.213 |
471 | 185.165.47.214 |
472 | 185.165.47.215 |
473 | 185.165.47.216 |
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475 | 185.165.47.218 |
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477 | 185.165.47.220 |
478 | 185.165.47.221 |
479 | 185.165.47.222 |
480 | 185.165.47.223 |
481 | 185.165.47.224 |
482 | 185.165.47.225 |
483 | 185.165.47.226 |
484 | 185.165.47.227 |
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486 | 185.165.47.229 |
487 | 185.165.47.230 |
488 | 185.165.47.231 |
489 | 185.165.47.232 |
490 | 185.165.47.233 |
491 | 185.165.47.234 |
492 | 185.165.47.235 |
493 | 185.165.47.236 |
494 | 185.165.47.237 |
495 | 185.165.47.238 |
496 | 185.165.47.239 |
497 | 185.165.47.240 |
498 | 185.165.47.241 |
499 | 185.165.47.242 |
500 | 185.165.47.243 |
501 | 185.165.47.244 |
502 | 185.165.47.245 |
503 | 185.165.47.246 |
504 | 185.165.47.247 |
505 | 185.165.47.248 |
506 | 185.165.47.249 |
507 | 185.165.47.250 |
508 | 185.165.47.251 |
509 | 185.165.47.252 |
510 | 185.165.47.253 |
511 | 185.165.47.254 |
512 | 185.165.47.255 |
IPアドレスの特殊属性
入力されたIPアドレス範囲の特殊IP属性に関する情報です。
特殊属性には該当しませんでした。
IP特殊属性 | 概要 | CIDR |
---|---|---|
グローバルアドレス | プライベートIPアドレス、リンクローカルアドレス、特殊用途のIPアドレスなどを除いた |
GLOBALS |
IPアドレスの特殊属性に割当てられた
各範囲・グローバルIPアドレスの範囲については、
以下リンク先でご確認下さい。
このツールの使用方法については以下でご紹介しています。
関連ツール
このツールに関連してCIDRをすべて展開するのではなく、
CIDR範囲に1つのIPアドレスが含まれているかどうかを、
チェックして確認するツールを作成公開しました。
併せてご活用いただければ幸いです。
さいごに
CIDRからIPアドレスの範囲をイメージすることは、
慣れるまでは少しとっつきにくい部分もあります。
ここでは実際に範囲を目視して、
それぞれの範囲を細かく見ていくことができるようにしています。
お役に立ちますと幸いです。
更新履歴情報
Ver. | 更新日 | 更新内容 |
---|---|---|
2.0.3 | 2018/05/10 | /32指定を行った際にエラーになる不具合を訂正。 |
2.0.2 | 2018/05/10 | 実行結果に表示のIP範囲再展開リンクをJavaScriptからURL形式へ変更。 Shiftを押しながらクリック等することで別画面表示を可能にし、 URLから実行結果を開けるように対応。 |
2.0.1 | 2018/05/09 | 実行結果に表示のCIDR再展開リンクをJavaScriptからURL形式へ変更。 Shiftを押しながらクリック等することで別画面表示を可能にし、 URLから実行結果を開けるように対応。 |
1.0.2 | 2015/02/21 | 特定のネットマスクの値に対しての表示結果を調整 |
1.0.1 | 2015/02/06 | 公開 |
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公開日:
最終更新日:2019/07/06