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 (129.170.146.0/23) 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 | 129.170.146.0/23 |
ネットワーク(CIDR) | 129.170.146.0/23 |
サブネット表記 | 129.170.146.0/255.255.254.0 |
短縮表記 | 129.170.146 |
IPアドレス範囲 | 129.170.146.0 - 129.170.147.255 |
IPアドレス総数 | 512 |
ネットワークIP | 129.170.146.0 |
ブロードキャストIP | 129.170.147.255 |
ホストアドレス範囲 | 129.170.146.1 - 129.170.147.254 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 | 129.170.146.0 |
2 | 129.170.146.1 |
3 | 129.170.146.2 |
4 | 129.170.146.3 |
5 | 129.170.146.4 |
6 | 129.170.146.5 |
7 | 129.170.146.6 |
8 | 129.170.146.7 |
9 | 129.170.146.8 |
10 | 129.170.146.9 |
11 | 129.170.146.10 |
12 | 129.170.146.11 |
13 | 129.170.146.12 |
14 | 129.170.146.13 |
15 | 129.170.146.14 |
16 | 129.170.146.15 |
17 | 129.170.146.16 |
18 | 129.170.146.17 |
19 | 129.170.146.18 |
20 | 129.170.146.19 |
21 | 129.170.146.20 |
22 | 129.170.146.21 |
23 | 129.170.146.22 |
24 | 129.170.146.23 |
25 | 129.170.146.24 |
26 | 129.170.146.25 |
27 | 129.170.146.26 |
28 | 129.170.146.27 |
29 | 129.170.146.28 |
30 | 129.170.146.29 |
31 | 129.170.146.30 |
32 | 129.170.146.31 |
33 | 129.170.146.32 |
34 | 129.170.146.33 |
35 | 129.170.146.34 |
36 | 129.170.146.35 |
37 | 129.170.146.36 |
38 | 129.170.146.37 |
39 | 129.170.146.38 |
40 | 129.170.146.39 |
41 | 129.170.146.40 |
42 | 129.170.146.41 |
43 | 129.170.146.42 |
44 | 129.170.146.43 |
45 | 129.170.146.44 |
46 | 129.170.146.45 |
47 | 129.170.146.46 |
48 | 129.170.146.47 |
49 | 129.170.146.48 |
50 | 129.170.146.49 |
51 | 129.170.146.50 |
52 | 129.170.146.51 |
53 | 129.170.146.52 |
54 | 129.170.146.53 |
55 | 129.170.146.54 |
56 | 129.170.146.55 |
57 | 129.170.146.56 |
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60 | 129.170.146.59 |
61 | 129.170.146.60 |
62 | 129.170.146.61 |
63 | 129.170.146.62 |
64 | 129.170.146.63 |
65 | 129.170.146.64 |
66 | 129.170.146.65 |
67 | 129.170.146.66 |
68 | 129.170.146.67 |
69 | 129.170.146.68 |
70 | 129.170.146.69 |
71 | 129.170.146.70 |
72 | 129.170.146.71 |
73 | 129.170.146.72 |
74 | 129.170.146.73 |
75 | 129.170.146.74 |
76 | 129.170.146.75 |
77 | 129.170.146.76 |
78 | 129.170.146.77 |
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80 | 129.170.146.79 |
81 | 129.170.146.80 |
82 | 129.170.146.81 |
83 | 129.170.146.82 |
84 | 129.170.146.83 |
85 | 129.170.146.84 |
86 | 129.170.146.85 |
87 | 129.170.146.86 |
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92 | 129.170.146.91 |
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96 | 129.170.146.95 |
97 | 129.170.146.96 |
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205 | 129.170.146.204 |
206 | 129.170.146.205 |
207 | 129.170.146.206 |
208 | 129.170.146.207 |
209 | 129.170.146.208 |
210 | 129.170.146.209 |
211 | 129.170.146.210 |
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214 | 129.170.146.213 |
215 | 129.170.146.214 |
216 | 129.170.146.215 |
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226 | 129.170.146.225 |
227 | 129.170.146.226 |
228 | 129.170.146.227 |
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231 | 129.170.146.230 |
232 | 129.170.146.231 |
233 | 129.170.146.232 |
234 | 129.170.146.233 |
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236 | 129.170.146.235 |
237 | 129.170.146.236 |
238 | 129.170.146.237 |
239 | 129.170.146.238 |
240 | 129.170.146.239 |
241 | 129.170.146.240 |
242 | 129.170.146.241 |
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244 | 129.170.146.243 |
245 | 129.170.146.244 |
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247 | 129.170.146.246 |
248 | 129.170.146.247 |
249 | 129.170.146.248 |
250 | 129.170.146.249 |
251 | 129.170.146.250 |
252 | 129.170.146.251 |
253 | 129.170.146.252 |
254 | 129.170.146.253 |
255 | 129.170.146.254 |
256 | 129.170.146.255 |
257 | 129.170.147.0 |
258 | 129.170.147.1 |
259 | 129.170.147.2 |
260 | 129.170.147.3 |
261 | 129.170.147.4 |
262 | 129.170.147.5 |
263 | 129.170.147.6 |
264 | 129.170.147.7 |
265 | 129.170.147.8 |
266 | 129.170.147.9 |
267 | 129.170.147.10 |
268 | 129.170.147.11 |
269 | 129.170.147.12 |
270 | 129.170.147.13 |
271 | 129.170.147.14 |
272 | 129.170.147.15 |
273 | 129.170.147.16 |
274 | 129.170.147.17 |
275 | 129.170.147.18 |
276 | 129.170.147.19 |
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278 | 129.170.147.21 |
279 | 129.170.147.22 |
280 | 129.170.147.23 |
281 | 129.170.147.24 |
282 | 129.170.147.25 |
283 | 129.170.147.26 |
284 | 129.170.147.27 |
285 | 129.170.147.28 |
286 | 129.170.147.29 |
287 | 129.170.147.30 |
288 | 129.170.147.31 |
289 | 129.170.147.32 |
290 | 129.170.147.33 |
291 | 129.170.147.34 |
292 | 129.170.147.35 |
293 | 129.170.147.36 |
294 | 129.170.147.37 |
295 | 129.170.147.38 |
296 | 129.170.147.39 |
297 | 129.170.147.40 |
298 | 129.170.147.41 |
299 | 129.170.147.42 |
300 | 129.170.147.43 |
301 | 129.170.147.44 |
302 | 129.170.147.45 |
303 | 129.170.147.46 |
304 | 129.170.147.47 |
305 | 129.170.147.48 |
306 | 129.170.147.49 |
307 | 129.170.147.50 |
308 | 129.170.147.51 |
309 | 129.170.147.52 |
310 | 129.170.147.53 |
311 | 129.170.147.54 |
312 | 129.170.147.55 |
313 | 129.170.147.56 |
314 | 129.170.147.57 |
315 | 129.170.147.58 |
316 | 129.170.147.59 |
317 | 129.170.147.60 |
318 | 129.170.147.61 |
319 | 129.170.147.62 |
320 | 129.170.147.63 |
321 | 129.170.147.64 |
322 | 129.170.147.65 |
323 | 129.170.147.66 |
324 | 129.170.147.67 |
325 | 129.170.147.68 |
326 | 129.170.147.69 |
327 | 129.170.147.70 |
328 | 129.170.147.71 |
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330 | 129.170.147.73 |
331 | 129.170.147.74 |
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333 | 129.170.147.76 |
334 | 129.170.147.77 |
335 | 129.170.147.78 |
336 | 129.170.147.79 |
337 | 129.170.147.80 |
338 | 129.170.147.81 |
339 | 129.170.147.82 |
340 | 129.170.147.83 |
341 | 129.170.147.84 |
342 | 129.170.147.85 |
343 | 129.170.147.86 |
344 | 129.170.147.87 |
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351 | 129.170.147.94 |
352 | 129.170.147.95 |
353 | 129.170.147.96 |
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358 | 129.170.147.101 |
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360 | 129.170.147.103 |
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368 | 129.170.147.111 |
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489 | 129.170.147.232 |
490 | 129.170.147.233 |
491 | 129.170.147.234 |
492 | 129.170.147.235 |
493 | 129.170.147.236 |
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503 | 129.170.147.246 |
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508 | 129.170.147.251 |
509 | 129.170.147.252 |
510 | 129.170.147.253 |
511 | 129.170.147.254 |
512 | 129.170.147.255 |
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