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 (170.153.136.0/23) 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 | 170.153.136.0/23 |
ネットワーク(CIDR) | 170.153.136.0/23 |
サブネット表記 | 170.153.136.0/255.255.254.0 |
短縮表記 | 170.153.136 |
IPアドレス範囲 | 170.153.136.0 - 170.153.137.255 |
IPアドレス総数 | 512 |
ネットワークIP | 170.153.136.0 |
ブロードキャストIP | 170.153.137.255 |
ホストアドレス範囲 | 170.153.136.1 - 170.153.137.254 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 | 170.153.136.0 |
2 | 170.153.136.1 |
3 | 170.153.136.2 |
4 | 170.153.136.3 |
5 | 170.153.136.4 |
6 | 170.153.136.5 |
7 | 170.153.136.6 |
8 | 170.153.136.7 |
9 | 170.153.136.8 |
10 | 170.153.136.9 |
11 | 170.153.136.10 |
12 | 170.153.136.11 |
13 | 170.153.136.12 |
14 | 170.153.136.13 |
15 | 170.153.136.14 |
16 | 170.153.136.15 |
17 | 170.153.136.16 |
18 | 170.153.136.17 |
19 | 170.153.136.18 |
20 | 170.153.136.19 |
21 | 170.153.136.20 |
22 | 170.153.136.21 |
23 | 170.153.136.22 |
24 | 170.153.136.23 |
25 | 170.153.136.24 |
26 | 170.153.136.25 |
27 | 170.153.136.26 |
28 | 170.153.136.27 |
29 | 170.153.136.28 |
30 | 170.153.136.29 |
31 | 170.153.136.30 |
32 | 170.153.136.31 |
33 | 170.153.136.32 |
34 | 170.153.136.33 |
35 | 170.153.136.34 |
36 | 170.153.136.35 |
37 | 170.153.136.36 |
38 | 170.153.136.37 |
39 | 170.153.136.38 |
40 | 170.153.136.39 |
41 | 170.153.136.40 |
42 | 170.153.136.41 |
43 | 170.153.136.42 |
44 | 170.153.136.43 |
45 | 170.153.136.44 |
46 | 170.153.136.45 |
47 | 170.153.136.46 |
48 | 170.153.136.47 |
49 | 170.153.136.48 |
50 | 170.153.136.49 |
51 | 170.153.136.50 |
52 | 170.153.136.51 |
53 | 170.153.136.52 |
54 | 170.153.136.53 |
55 | 170.153.136.54 |
56 | 170.153.136.55 |
57 | 170.153.136.56 |
58 | 170.153.136.57 |
59 | 170.153.136.58 |
60 | 170.153.136.59 |
61 | 170.153.136.60 |
62 | 170.153.136.61 |
63 | 170.153.136.62 |
64 | 170.153.136.63 |
65 | 170.153.136.64 |
66 | 170.153.136.65 |
67 | 170.153.136.66 |
68 | 170.153.136.67 |
69 | 170.153.136.68 |
70 | 170.153.136.69 |
71 | 170.153.136.70 |
72 | 170.153.136.71 |
73 | 170.153.136.72 |
74 | 170.153.136.73 |
75 | 170.153.136.74 |
76 | 170.153.136.75 |
77 | 170.153.136.76 |
78 | 170.153.136.77 |
79 | 170.153.136.78 |
80 | 170.153.136.79 |
81 | 170.153.136.80 |
82 | 170.153.136.81 |
83 | 170.153.136.82 |
84 | 170.153.136.83 |
85 | 170.153.136.84 |
86 | 170.153.136.85 |
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90 | 170.153.136.89 |
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92 | 170.153.136.91 |
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94 | 170.153.136.93 |
95 | 170.153.136.94 |
96 | 170.153.136.95 |
97 | 170.153.136.96 |
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100 | 170.153.136.99 |
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102 | 170.153.136.101 |
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199 | 170.153.136.198 |
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206 | 170.153.136.205 |
207 | 170.153.136.206 |
208 | 170.153.136.207 |
209 | 170.153.136.208 |
210 | 170.153.136.209 |
211 | 170.153.136.210 |
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215 | 170.153.136.214 |
216 | 170.153.136.215 |
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218 | 170.153.136.217 |
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227 | 170.153.136.226 |
228 | 170.153.136.227 |
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230 | 170.153.136.229 |
231 | 170.153.136.230 |
232 | 170.153.136.231 |
233 | 170.153.136.232 |
234 | 170.153.136.233 |
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236 | 170.153.136.235 |
237 | 170.153.136.236 |
238 | 170.153.136.237 |
239 | 170.153.136.238 |
240 | 170.153.136.239 |
241 | 170.153.136.240 |
242 | 170.153.136.241 |
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244 | 170.153.136.243 |
245 | 170.153.136.244 |
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247 | 170.153.136.246 |
248 | 170.153.136.247 |
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250 | 170.153.136.249 |
251 | 170.153.136.250 |
252 | 170.153.136.251 |
253 | 170.153.136.252 |
254 | 170.153.136.253 |
255 | 170.153.136.254 |
256 | 170.153.136.255 |
257 | 170.153.137.0 |
258 | 170.153.137.1 |
259 | 170.153.137.2 |
260 | 170.153.137.3 |
261 | 170.153.137.4 |
262 | 170.153.137.5 |
263 | 170.153.137.6 |
264 | 170.153.137.7 |
265 | 170.153.137.8 |
266 | 170.153.137.9 |
267 | 170.153.137.10 |
268 | 170.153.137.11 |
269 | 170.153.137.12 |
270 | 170.153.137.13 |
271 | 170.153.137.14 |
272 | 170.153.137.15 |
273 | 170.153.137.16 |
274 | 170.153.137.17 |
275 | 170.153.137.18 |
276 | 170.153.137.19 |
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280 | 170.153.137.23 |
281 | 170.153.137.24 |
282 | 170.153.137.25 |
283 | 170.153.137.26 |
284 | 170.153.137.27 |
285 | 170.153.137.28 |
286 | 170.153.137.29 |
287 | 170.153.137.30 |
288 | 170.153.137.31 |
289 | 170.153.137.32 |
290 | 170.153.137.33 |
291 | 170.153.137.34 |
292 | 170.153.137.35 |
293 | 170.153.137.36 |
294 | 170.153.137.37 |
295 | 170.153.137.38 |
296 | 170.153.137.39 |
297 | 170.153.137.40 |
298 | 170.153.137.41 |
299 | 170.153.137.42 |
300 | 170.153.137.43 |
301 | 170.153.137.44 |
302 | 170.153.137.45 |
303 | 170.153.137.46 |
304 | 170.153.137.47 |
305 | 170.153.137.48 |
306 | 170.153.137.49 |
307 | 170.153.137.50 |
308 | 170.153.137.51 |
309 | 170.153.137.52 |
310 | 170.153.137.53 |
311 | 170.153.137.54 |
312 | 170.153.137.55 |
313 | 170.153.137.56 |
314 | 170.153.137.57 |
315 | 170.153.137.58 |
316 | 170.153.137.59 |
317 | 170.153.137.60 |
318 | 170.153.137.61 |
319 | 170.153.137.62 |
320 | 170.153.137.63 |
321 | 170.153.137.64 |
322 | 170.153.137.65 |
323 | 170.153.137.66 |
324 | 170.153.137.67 |
325 | 170.153.137.68 |
326 | 170.153.137.69 |
327 | 170.153.137.70 |
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330 | 170.153.137.73 |
331 | 170.153.137.74 |
332 | 170.153.137.75 |
333 | 170.153.137.76 |
334 | 170.153.137.77 |
335 | 170.153.137.78 |
336 | 170.153.137.79 |
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351 | 170.153.137.94 |
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368 | 170.153.137.111 |
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471 | 170.153.137.214 |
472 | 170.153.137.215 |
473 | 170.153.137.216 |
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475 | 170.153.137.218 |
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477 | 170.153.137.220 |
478 | 170.153.137.221 |
479 | 170.153.137.222 |
480 | 170.153.137.223 |
481 | 170.153.137.224 |
482 | 170.153.137.225 |
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484 | 170.153.137.227 |
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486 | 170.153.137.229 |
487 | 170.153.137.230 |
488 | 170.153.137.231 |
489 | 170.153.137.232 |
490 | 170.153.137.233 |
491 | 170.153.137.234 |
492 | 170.153.137.235 |
493 | 170.153.137.236 |
494 | 170.153.137.237 |
495 | 170.153.137.238 |
496 | 170.153.137.239 |
497 | 170.153.137.240 |
498 | 170.153.137.241 |
499 | 170.153.137.242 |
500 | 170.153.137.243 |
501 | 170.153.137.244 |
502 | 170.153.137.245 |
503 | 170.153.137.246 |
504 | 170.153.137.247 |
505 | 170.153.137.248 |
506 | 170.153.137.249 |
507 | 170.153.137.250 |
508 | 170.153.137.251 |
509 | 170.153.137.252 |
510 | 170.153.137.253 |
511 | 170.153.137.254 |
512 | 170.153.137.255 |
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