局域网扫描一个网段中的可用ip-用于配置虚拟机的静态ip
2024-08-05 11:05:43

场景

  • 一个网段aaa.bbb.ccc.xxx中，搜索其中可用的没有被其他主机占用的ip用以配置虚拟机的ip。
  • 其中，网关是aaa.bbb.ccc.1。
  • 子网掩码是255.255.255.0。

nmap工具

  • 安装: sudo apt install nmap

  • 需求：使用nmap工具来扫描网段aaa.bbb.ccc.0/24中未被使用的IP地址。

  • aaa.bbb.ccc.0 作为网络地址。

  • aaa.bbb.ccc.255 作为广播地址。

  • aaa.bbb.ccc.1 作为网关地址。

  • 所以搜寻地址范围是：[aaa.bbb.ccc.2, aaa.bbb.ccc.254]

  • 方案：

    方案1:
    使用-sP参数进行Ping扫描，来检查主机是否在线，但不进行端口扫描。

    方案2:
    使用-sS参数进行TCP SYN扫描

    方案3:
    使用-sT参数进行TCP连接扫描

  • 实践：

    1
    nmap -sP aaa.bbb.ccc.2-254

    结果如下：

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    user1@k8s-master01:~$ sudo nmap -sP aaa.bbb.ccc.2-254

    Starting Nmap 7.60 ( https://nmap.org ) at 2024-08-05 02:58 UTC
    Nmap scan report for aaa.bbb.ccc.7
    Host is up (0.00032s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.11
    Host is up (0.00067s latency).
    MAC Address: ---------------- (Super Micro Computer)
    Nmap scan report for aaa.bbb.ccc.25
    Host is up (0.00018s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.31
    Host is up (0.00028s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.32
    Host is up (0.00021s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.33
    Host is up (0.00027s latency).
    MAC Address: ---------------- (Dell)
    Nmap scan report for aaa.bbb.ccc.37
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Inventec)
    Nmap scan report for aaa.bbb.ccc.38
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Intel Corporate)
    Nmap scan report for aaa.bbb.ccc.39
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Super Micro Computer)
    Nmap scan report for aaa.bbb.ccc.41
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Intel Corporate)
    Nmap scan report for aaa.bbb.ccc.42
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Intel Corporate)
    Nmap scan report for aaa.bbb.ccc.43
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.44
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.45
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Shenzhen Bitland Information Technology)
    Nmap scan report for aaa.bbb.ccc.47
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Dell)
    Nmap scan report for aaa.bbb.ccc.48
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Intel Corporate)
    Nmap scan report for aaa.bbb.ccc.49
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.50
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.51
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Inspur Electronic Information Industry)
    Nmap scan report for aaa.bbb.ccc.52
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Inspur Electronic Information Industry)
    Nmap scan report for aaa.bbb.ccc.55
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Beijing Sinead Technology)
    Nmap scan report for aaa.bbb.ccc.81
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Intel Corporate)
    Nmap scan report for aaa.bbb.ccc.85
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.89
    Host is up (0.00016s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.94
    Host is up (0.00032s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.95
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.97
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.98
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.99
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.102
    Host is up (-0.100s latency).
    MAC Address: ---------------- (VMware)
    Nmap scan report for aaa.bbb.ccc.103
    Host is up (-0.100s latency).
    MAC Address: ---------------- (VMware)
    Nmap scan report for aaa.bbb.ccc.104
    Host is up (-0.100s latency).
    MAC Address: ---------------- (VMware)
    Nmap scan report for k8s-master02 (aaa.bbb.ccc.105)
    Host is up (-0.100s latency).
    MAC Address: ---------------- (VMware)
    Nmap scan report for k8s-worker01 (aaa.bbb.ccc.106)
    Host is up (-0.100s latency).
    MAC Address: ---------------- (VMware)
    Nmap scan report for k8s-worker02 (aaa.bbb.ccc.107)
    Host is up (-0.100s latency).
    MAC Address: ---------------- (VMware)
    Nmap scan report for k8s-worker03 (aaa.bbb.ccc.108)
    Host is up (-0.100s latency).
    MAC Address: ---------------- (VMware)
    Nmap scan report for aaa.bbb.ccc.109
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.110
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.111
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.112
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.113
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.114
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Dell)
    Nmap scan report for aaa.bbb.ccc.115
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.116
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Intel Corporate)
    Nmap scan report for aaa.bbb.ccc.117
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.119
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Hewlett Packard)
    Nmap scan report for aaa.bbb.ccc.120
    Host is up (-0.10s latency).
    MAC Address: ---------------- (Hewlett Packard)
    Nmap scan report for aaa.bbb.ccc.121
    Host is up (-0.10s latency).
    MAC Address: ---------------- (VMware)
    Nmap scan report for aaa.bbb.ccc.134
    Host is up (0.00013s latency).
    MAC Address: ---------------- (Realtek Semiconductor)
    Nmap scan report for aaa.bbb.ccc.138
    Host is up (0.00017s latency).
    MAC Address: ---------------- (Super Micro Computer)
    Nmap scan report for aaa.bbb.ccc.149
    Host is up (0.00036s latency).
    MAC Address: ---------------- (Asustek Computer)
    Nmap scan report for aaa.bbb.ccc.150
    Host is up (0.00012s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.151
    Host is up (0.10s latency).
    MAC Address: ---------------- (Dell)
    Nmap scan report for aaa.bbb.ccc.154
    Host is up (0.00048s latency).
    MAC Address: ---------------- (Dell)
    Nmap scan report for aaa.bbb.ccc.155
    Host is up (0.00051s latency).
    MAC Address: ---------------- (Dell)
    Nmap scan report for aaa.bbb.ccc.156
    Host is up (0.00017s latency).
    MAC Address: ---------------- (Dell)
    Nmap scan report for aaa.bbb.ccc.160
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.165
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.166
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.168
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.169
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.171
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.172
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.173
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.174
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.175
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.176
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.177
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Hewlett Packard)
    Nmap scan report for aaa.bbb.ccc.180
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.181
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.183
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.184
    Host is up (0.00013s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.185
    Host is up (0.00073s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.186
    Host is up (0.00025s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.190
    Host is up (0.00043s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.191
    Host is up (0.00018s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.192
    Host is up (0.00019s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.193
    Host is up (0.00018s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.194
    Host is up (0.00051s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.196
    Host is up (0.00026s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.199
    Host is up (0.00059s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.200
    Host is up (0.00016s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.201
    Host is up (0.00022s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.202
    Host is up (0.00048s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.203
    Host is up (0.00014s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.204
    Host is up (0.00026s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.205
    Host is up (0.00043s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.207
    Host is up (0.00013s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.208
    Host is up (0.00014s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.210
    Host is up (0.00012s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.211
    Host is up (0.00029s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.212
    Host is up (0.00023s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.213
    Host is up (0.00014s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.214
    Host is up (0.00023s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.215
    Host is up (0.00016s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.216
    Host is up (0.00029s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.217
    Host is up (0.00020s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.218
    Host is up (0.00018s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.219
    Host is up (0.00013s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.220
    Host is up (0.00044s latency).
    MAC Address: ---------------- (Realtek Semiconductor)
    Nmap scan report for aaa.bbb.ccc.222
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Asustek Computer)
    Nmap scan report for aaa.bbb.ccc.223
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.224
    Host is up (-0.099s latency).
    MAC Address: ---------------- (Asustek Computer)
    Nmap scan report for aaa.bbb.ccc.227
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Hewlett Packard)
    Nmap scan report for aaa.bbb.ccc.229
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.231
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.232
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.233
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.236
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.237
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.240
    Host is up (0.00019s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.241
    Host is up (0.00014s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.244
    Host is up (-0.099s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.245
    Host is up (-0.100s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.246
    Host is up (0.00068s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.247
    Host is up (0.00021s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.248
    Host is up (0.00012s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.249
    Host is up (0.00014s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.250
    Host is up (0.00020s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.251
    Host is up (0.00013s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.252
    Host is up (0.00024s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for aaa.bbb.ccc.253
    Host is up (0.00037s latency).
    MAC Address: ---------------- (Hewlett Packard)
    Nmap scan report for aaa.bbb.ccc.254
    Host is up (0.00015s latency).
    MAC Address: ---------------- (Unknown)
    Nmap scan report for k8s-master01 (aaa.bbb.ccc.122)
    Host is up.
    Nmap done: 253 IP addresses (124 hosts up) scanned in 1.99 seconds
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