[英]Validate IP Address/ Netmask
Given an IP address and Netmask. 给定IP地址和网络掩码。 I want to check if the combination is valid or not.
我想检查组合是否有效。 Example
例
IP Address: 23.1.1.1 Netmask: 255.0.0.0
IP地址:23.1.1.1网络掩码:255.0.0.0
Here the combination is wrong. 这里的组合是错误的。
What are the rule to validate the combination and also netmask 验证组合和网络掩码的规则是什么
Check sipcalc tool. 检查sipcalc工具。 You can install it on Debian-based distros with
您可以使用以下命令将其安装在基于Debian的发行版上
$ apt-get install sipcalc
For the proposed IP/netmask pair, you get this: 对于建议的IP /网络掩码对,您将获得:
$ sipcalc 23.1.1.1 255.0.0.0
-[ipv4 : 23.1.1.1 255.0.0.0] - 0
[CIDR]
Host address - 23.1.1.1
Host address (decimal) - 385941761
Host address (hex) - 17010101
Network address - 23.0.0.0
Network mask - 255.0.0.0
Network mask (bits) - 8
Network mask (hex) - FF000000
Broadcast address - 23.255.255.255
Cisco wildcard - 0.255.255.255
Addresses in network - 16777216
Network range - 23.0.0.0 - 23.255.255.255
Usable range - 23.0.0.1 - 23.255.255.254
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