您在這裡
IP 地址列表: 192.168.21.* (192.168.21.0 - 192.168.21.254)
這是第壹個字節為192,第二個字節為168,第三個字節為21,第四個字節在0 - 255之間的IP地址列表,表示為192.168.21.* (192.168.21.0 - 192.168.21.255)。
這個IP地址列表中包含256個IP地址,我們以其中壹個IP地址192.168.21.1為例,來描述這個IP的屬性:
但這只是其中1個IP地址的例子,並不代表這個列表中所有的IP地址都有同樣的屬性,如果需要了解其它IP和更詳細的IP地址段信息,請點擊下面列表中的標題鏈接。
二進制、十進制和十六進制的 IP 地址說明 IP 地址類別 A/B/C/D/E 和網絡 ID、主機 ID 的說明內容:
1. 第一個 IP 地址示例
192.168.21.1是一個內網私有IP地址,它通常是大多數無線路由器或ADSL調制解調器的默認網關,通過這個IP地址可以訪問您的路由器管理界面,登錄成功後可以更改您的路由器設置。需要查看用戶名、密碼重置等信息,可以點擊查看:192.168.21.1。
🔝 回到頂部2. C類IP地址列表
C類IP地址是指:在IP地址的四段號碼(例如:字節1.字節2.字節3.字節4)中,前三段號碼(字節1.字節2.字節3)為網絡號碼,剩下的後壹段號碼(字節4)為本地計算機的號碼。 如果用二進制表示IP地址的話,C類IP地址就由3字節的網絡地址和1字節主機地址組成,網絡地址的最高位必須是'110'。 C類IP地址範圍:192.0.0.0 ~ 223.255.255.255,可用IP地址範圍:192.0.0.1 ~ 223.255.255.254。 C類IP地址中網絡的標識長度為21位,主機標識的長度為8位,C類網絡地址數量較多(2 ^ 21 = 2097152個),適用於小規模的局域網絡,每個網絡最多只能包含254臺計算機(2 ^ 8 - 2 = 254個)。 如果您需要了解C類IP地址段詳情,可以點擊C類IP地址列表中的標題鏈接。
- 192.168.21.0網絡ID號碼,不能分配使用
- 192.168.21.1常用於網關、路由器等網絡設備
- 192.168.21.2
- 192.168.21.3
- 192.168.21.4
- 192.168.21.5
- 192.168.21.6
- 192.168.21.7
- 192.168.21.8
- 192.168.21.9
- 192.168.21.10
- 192.168.21.11
- 192.168.21.12
- 192.168.21.13
- 192.168.21.14
- 192.168.21.15
- 192.168.21.16
- 192.168.21.17
- 192.168.21.18
- 192.168.21.19
- 192.168.21.20
- 192.168.21.21
- 192.168.21.22
- 192.168.21.23
- 192.168.21.24
- 192.168.21.25
- 192.168.21.26
- 192.168.21.27
- 192.168.21.28
- 192.168.21.29
- 192.168.21.30
- 192.168.21.31
- 192.168.21.32
- 192.168.21.33
- 192.168.21.34
- 192.168.21.35
- 192.168.21.36
- 192.168.21.37
- 192.168.21.38
- 192.168.21.39
- 192.168.21.40
- 192.168.21.41
- 192.168.21.42
- 192.168.21.43
- 192.168.21.44
- 192.168.21.45
- 192.168.21.46
- 192.168.21.47
- 192.168.21.48
- 192.168.21.49
- 192.168.21.50
- 192.168.21.51
- 192.168.21.52
- 192.168.21.53
- 192.168.21.54
- 192.168.21.55
- 192.168.21.56
- 192.168.21.57
- 192.168.21.58
- 192.168.21.59
- 192.168.21.60
- 192.168.21.61
- 192.168.21.62
- 192.168.21.63
- 192.168.21.64
- 192.168.21.65
- 192.168.21.66
- 192.168.21.67
- 192.168.21.68
- 192.168.21.69
- 192.168.21.70
- 192.168.21.71
- 192.168.21.72
- 192.168.21.73
- 192.168.21.74
- 192.168.21.75
- 192.168.21.76
- 192.168.21.77
- 192.168.21.78
- 192.168.21.79
- 192.168.21.80
- 192.168.21.81
- 192.168.21.82
- 192.168.21.83
- 192.168.21.84
- 192.168.21.85
- 192.168.21.86
- 192.168.21.87
- 192.168.21.88
- 192.168.21.89
- 192.168.21.90
- 192.168.21.91
- 192.168.21.92
- 192.168.21.93
- 192.168.21.94
- 192.168.21.95
- 192.168.21.96
- 192.168.21.97
- 192.168.21.98
- 192.168.21.99
- 192.168.21.100
- 192.168.21.101
- 192.168.21.102
- 192.168.21.103
- 192.168.21.104
- 192.168.21.105
- 192.168.21.106
- 192.168.21.107
- 192.168.21.108
- 192.168.21.109
- 192.168.21.110
- 192.168.21.111
- 192.168.21.112
- 192.168.21.113
- 192.168.21.114
- 192.168.21.115
- 192.168.21.116
- 192.168.21.117
- 192.168.21.118
- 192.168.21.119
- 192.168.21.120
- 192.168.21.121
- 192.168.21.122
- 192.168.21.123
- 192.168.21.124
- 192.168.21.125
- 192.168.21.126
- 192.168.21.127
- 192.168.21.128
- 192.168.21.129
- 192.168.21.130
- 192.168.21.131
- 192.168.21.132
- 192.168.21.133
- 192.168.21.134
- 192.168.21.135
- 192.168.21.136
- 192.168.21.137
- 192.168.21.138
- 192.168.21.139
- 192.168.21.140
- 192.168.21.141
- 192.168.21.142
- 192.168.21.143
- 192.168.21.144
- 192.168.21.145
- 192.168.21.146
- 192.168.21.147
- 192.168.21.148
- 192.168.21.149
- 192.168.21.150
- 192.168.21.151
- 192.168.21.152
- 192.168.21.153
- 192.168.21.154
- 192.168.21.155
- 192.168.21.156
- 192.168.21.157
- 192.168.21.158
- 192.168.21.159
- 192.168.21.160
- 192.168.21.161
- 192.168.21.162
- 192.168.21.163
- 192.168.21.164
- 192.168.21.165
- 192.168.21.166
- 192.168.21.167
- 192.168.21.168
- 192.168.21.169
- 192.168.21.170
- 192.168.21.171
- 192.168.21.172
- 192.168.21.173
- 192.168.21.174
- 192.168.21.175
- 192.168.21.176
- 192.168.21.177
- 192.168.21.178
- 192.168.21.179
- 192.168.21.180
- 192.168.21.181
- 192.168.21.182
- 192.168.21.183
- 192.168.21.184
- 192.168.21.185
- 192.168.21.186
- 192.168.21.187
- 192.168.21.188
- 192.168.21.189
- 192.168.21.190
- 192.168.21.191
- 192.168.21.192
- 192.168.21.193
- 192.168.21.194
- 192.168.21.195
- 192.168.21.196
- 192.168.21.197
- 192.168.21.198
- 192.168.21.199
- 192.168.21.200
- 192.168.21.201
- 192.168.21.202
- 192.168.21.203
- 192.168.21.204
- 192.168.21.205
- 192.168.21.206
- 192.168.21.207
- 192.168.21.208
- 192.168.21.209
- 192.168.21.210
- 192.168.21.211
- 192.168.21.212
- 192.168.21.213
- 192.168.21.214
- 192.168.21.215
- 192.168.21.216
- 192.168.21.217
- 192.168.21.218
- 192.168.21.219
- 192.168.21.220
- 192.168.21.221
- 192.168.21.222
- 192.168.21.223
- 192.168.21.224
- 192.168.21.225
- 192.168.21.226
- 192.168.21.227
- 192.168.21.228
- 192.168.21.229
- 192.168.21.230
- 192.168.21.231
- 192.168.21.232
- 192.168.21.233
- 192.168.21.234
- 192.168.21.235
- 192.168.21.236
- 192.168.21.237
- 192.168.21.238
- 192.168.21.239
- 192.168.21.240
- 192.168.21.241
- 192.168.21.242
- 192.168.21.243
- 192.168.21.244
- 192.168.21.245
- 192.168.21.246
- 192.168.21.247
- 192.168.21.248
- 192.168.21.249
- 192.168.21.250
- 192.168.21.251
- 192.168.21.252
- 192.168.21.253
- 192.168.21.254
- 192.168.21.255網絡廣播地址,不能分配使用
3. 最後一個 IP 地址示例
192.168.21.255是一個內網私有IP地址,它通常是大多數無線路由器或ADSL調制解調器的默認網關,通過這個IP地址可以訪問您的路由器管理界面,登錄成功後可以更改您的路由器設置。需要查看用戶名、密碼重置等信息,可以點擊查看:192.168.21.255。
🔝 回到頂部