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 (170.159.148.0/23) 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 | 170.159.148.0/23 |
ネットワーク(CIDR) | 170.159.148.0/23 |
サブネット表記 | 170.159.148.0/255.255.254.0 |
短縮表記 | 170.159.148 |
IPアドレス範囲 | 170.159.148.0 - 170.159.149.255 |
IPアドレス総数 | 512 |
ネットワークIP | 170.159.148.0 |
ブロードキャストIP | 170.159.149.255 |
ホストアドレス範囲 | 170.159.148.1 - 170.159.149.254 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 | 170.159.148.0 |
2 | 170.159.148.1 |
3 | 170.159.148.2 |
4 | 170.159.148.3 |
5 | 170.159.148.4 |
6 | 170.159.148.5 |
7 | 170.159.148.6 |
8 | 170.159.148.7 |
9 | 170.159.148.8 |
10 | 170.159.148.9 |
11 | 170.159.148.10 |
12 | 170.159.148.11 |
13 | 170.159.148.12 |
14 | 170.159.148.13 |
15 | 170.159.148.14 |
16 | 170.159.148.15 |
17 | 170.159.148.16 |
18 | 170.159.148.17 |
19 | 170.159.148.18 |
20 | 170.159.148.19 |
21 | 170.159.148.20 |
22 | 170.159.148.21 |
23 | 170.159.148.22 |
24 | 170.159.148.23 |
25 | 170.159.148.24 |
26 | 170.159.148.25 |
27 | 170.159.148.26 |
28 | 170.159.148.27 |
29 | 170.159.148.28 |
30 | 170.159.148.29 |
31 | 170.159.148.30 |
32 | 170.159.148.31 |
33 | 170.159.148.32 |
34 | 170.159.148.33 |
35 | 170.159.148.34 |
36 | 170.159.148.35 |
37 | 170.159.148.36 |
38 | 170.159.148.37 |
39 | 170.159.148.38 |
40 | 170.159.148.39 |
41 | 170.159.148.40 |
42 | 170.159.148.41 |
43 | 170.159.148.42 |
44 | 170.159.148.43 |
45 | 170.159.148.44 |
46 | 170.159.148.45 |
47 | 170.159.148.46 |
48 | 170.159.148.47 |
49 | 170.159.148.48 |
50 | 170.159.148.49 |
51 | 170.159.148.50 |
52 | 170.159.148.51 |
53 | 170.159.148.52 |
54 | 170.159.148.53 |
55 | 170.159.148.54 |
56 | 170.159.148.55 |
57 | 170.159.148.56 |
58 | 170.159.148.57 |
59 | 170.159.148.58 |
60 | 170.159.148.59 |
61 | 170.159.148.60 |
62 | 170.159.148.61 |
63 | 170.159.148.62 |
64 | 170.159.148.63 |
65 | 170.159.148.64 |
66 | 170.159.148.65 |
67 | 170.159.148.66 |
68 | 170.159.148.67 |
69 | 170.159.148.68 |
70 | 170.159.148.69 |
71 | 170.159.148.70 |
72 | 170.159.148.71 |
73 | 170.159.148.72 |
74 | 170.159.148.73 |
75 | 170.159.148.74 |
76 | 170.159.148.75 |
77 | 170.159.148.76 |
78 | 170.159.148.77 |
79 | 170.159.148.78 |
80 | 170.159.148.79 |
81 | 170.159.148.80 |
82 | 170.159.148.81 |
83 | 170.159.148.82 |
84 | 170.159.148.83 |
85 | 170.159.148.84 |
86 | 170.159.148.85 |
87 | 170.159.148.86 |
88 | 170.159.148.87 |
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90 | 170.159.148.89 |
91 | 170.159.148.90 |
92 | 170.159.148.91 |
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94 | 170.159.148.93 |
95 | 170.159.148.94 |
96 | 170.159.148.95 |
97 | 170.159.148.96 |
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100 | 170.159.148.99 |
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160 | 170.159.148.159 |
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176 | 170.159.148.175 |
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180 | 170.159.148.179 |
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205 | 170.159.148.204 |
206 | 170.159.148.205 |
207 | 170.159.148.206 |
208 | 170.159.148.207 |
209 | 170.159.148.208 |
210 | 170.159.148.209 |
211 | 170.159.148.210 |
212 | 170.159.148.211 |
213 | 170.159.148.212 |
214 | 170.159.148.213 |
215 | 170.159.148.214 |
216 | 170.159.148.215 |
217 | 170.159.148.216 |
218 | 170.159.148.217 |
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225 | 170.159.148.224 |
226 | 170.159.148.225 |
227 | 170.159.148.226 |
228 | 170.159.148.227 |
229 | 170.159.148.228 |
230 | 170.159.148.229 |
231 | 170.159.148.230 |
232 | 170.159.148.231 |
233 | 170.159.148.232 |
234 | 170.159.148.233 |
235 | 170.159.148.234 |
236 | 170.159.148.235 |
237 | 170.159.148.236 |
238 | 170.159.148.237 |
239 | 170.159.148.238 |
240 | 170.159.148.239 |
241 | 170.159.148.240 |
242 | 170.159.148.241 |
243 | 170.159.148.242 |
244 | 170.159.148.243 |
245 | 170.159.148.244 |
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247 | 170.159.148.246 |
248 | 170.159.148.247 |
249 | 170.159.148.248 |
250 | 170.159.148.249 |
251 | 170.159.148.250 |
252 | 170.159.148.251 |
253 | 170.159.148.252 |
254 | 170.159.148.253 |
255 | 170.159.148.254 |
256 | 170.159.148.255 |
257 | 170.159.149.0 |
258 | 170.159.149.1 |
259 | 170.159.149.2 |
260 | 170.159.149.3 |
261 | 170.159.149.4 |
262 | 170.159.149.5 |
263 | 170.159.149.6 |
264 | 170.159.149.7 |
265 | 170.159.149.8 |
266 | 170.159.149.9 |
267 | 170.159.149.10 |
268 | 170.159.149.11 |
269 | 170.159.149.12 |
270 | 170.159.149.13 |
271 | 170.159.149.14 |
272 | 170.159.149.15 |
273 | 170.159.149.16 |
274 | 170.159.149.17 |
275 | 170.159.149.18 |
276 | 170.159.149.19 |
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278 | 170.159.149.21 |
279 | 170.159.149.22 |
280 | 170.159.149.23 |
281 | 170.159.149.24 |
282 | 170.159.149.25 |
283 | 170.159.149.26 |
284 | 170.159.149.27 |
285 | 170.159.149.28 |
286 | 170.159.149.29 |
287 | 170.159.149.30 |
288 | 170.159.149.31 |
289 | 170.159.149.32 |
290 | 170.159.149.33 |
291 | 170.159.149.34 |
292 | 170.159.149.35 |
293 | 170.159.149.36 |
294 | 170.159.149.37 |
295 | 170.159.149.38 |
296 | 170.159.149.39 |
297 | 170.159.149.40 |
298 | 170.159.149.41 |
299 | 170.159.149.42 |
300 | 170.159.149.43 |
301 | 170.159.149.44 |
302 | 170.159.149.45 |
303 | 170.159.149.46 |
304 | 170.159.149.47 |
305 | 170.159.149.48 |
306 | 170.159.149.49 |
307 | 170.159.149.50 |
308 | 170.159.149.51 |
309 | 170.159.149.52 |
310 | 170.159.149.53 |
311 | 170.159.149.54 |
312 | 170.159.149.55 |
313 | 170.159.149.56 |
314 | 170.159.149.57 |
315 | 170.159.149.58 |
316 | 170.159.149.59 |
317 | 170.159.149.60 |
318 | 170.159.149.61 |
319 | 170.159.149.62 |
320 | 170.159.149.63 |
321 | 170.159.149.64 |
322 | 170.159.149.65 |
323 | 170.159.149.66 |
324 | 170.159.149.67 |
325 | 170.159.149.68 |
326 | 170.159.149.69 |
327 | 170.159.149.70 |
328 | 170.159.149.71 |
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330 | 170.159.149.73 |
331 | 170.159.149.74 |
332 | 170.159.149.75 |
333 | 170.159.149.76 |
334 | 170.159.149.77 |
335 | 170.159.149.78 |
336 | 170.159.149.79 |
337 | 170.159.149.80 |
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340 | 170.159.149.83 |
341 | 170.159.149.84 |
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351 | 170.159.149.94 |
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353 | 170.159.149.96 |
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358 | 170.159.149.101 |
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360 | 170.159.149.103 |
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362 | 170.159.149.105 |
363 | 170.159.149.106 |
364 | 170.159.149.107 |
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367 | 170.159.149.110 |
368 | 170.159.149.111 |
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370 | 170.159.149.113 |
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471 | 170.159.149.214 |
472 | 170.159.149.215 |
473 | 170.159.149.216 |
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475 | 170.159.149.218 |
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477 | 170.159.149.220 |
478 | 170.159.149.221 |
479 | 170.159.149.222 |
480 | 170.159.149.223 |
481 | 170.159.149.224 |
482 | 170.159.149.225 |
483 | 170.159.149.226 |
484 | 170.159.149.227 |
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486 | 170.159.149.229 |
487 | 170.159.149.230 |
488 | 170.159.149.231 |
489 | 170.159.149.232 |
490 | 170.159.149.233 |
491 | 170.159.149.234 |
492 | 170.159.149.235 |
493 | 170.159.149.236 |
494 | 170.159.149.237 |
495 | 170.159.149.238 |
496 | 170.159.149.239 |
497 | 170.159.149.240 |
498 | 170.159.149.241 |
499 | 170.159.149.242 |
500 | 170.159.149.243 |
501 | 170.159.149.244 |
502 | 170.159.149.245 |
503 | 170.159.149.246 |
504 | 170.159.149.247 |
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506 | 170.159.149.249 |
507 | 170.159.149.250 |
508 | 170.159.149.251 |
509 | 170.159.149.252 |
510 | 170.159.149.253 |
511 | 170.159.149.254 |
512 | 170.159.149.255 |
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