raspberry pi

I recently got a Raspberry Pi for testing, and to build some projects ideas I have, and right after installing Raspbian, the Linux version of Debian specifically made for the Raspberry Pi, I had a problem.

我最近得到了一个Raspberry Pi进行测试，并建立了一些项目构想，并且在安装Raspbian(专门为Raspberry Pi制作的Linux版本的Debian)之后，我遇到了问题。

I attached the Raspberry Pi to the TV, using the HDMI cable, and I attached an USB mouse and USB keyboard to install the OS and get all “wired up”.

我使用HDMI电缆将Raspberry Pi连接到电视，并连接了USB鼠标和USB键盘以安装操作系统并进行“连接”。

I then set up the VNC Server on the Pi to be able to connect to it from the Mac.

然后，我在Pi上设置了VNC服务器，以便能够从Mac连接到它。

As I was removing all those cables, in order to only let the Raspberry Pi attached to the power cable, I realized that as soon as I restarted it, the IP address assigned to it would change.

当我拆除所有这些电缆时，为了只让Raspberry Pi连接到电源线上，我意识到，只要重新启动它，分配给它的IP地址就会改变。

This is because of DHCP, the protocol that is used by the WiFi router. It does not assign a fixed IP to every device connected: the IP changes all the time.

这是因为DHCP，WiFi路由器使用的协议。 它不会为每个连接的设备分配固定的IP：IP一直在变化。

Sometimes it’s 192.168.1.2. Sometimes it’s 192.168.1.30. Sometimes it’s 192.168.1.43.

有时是192.168.1.2 。 有时是192.168.1.30 。 有时是192.168.1.43 。

I don’t really want to spend time every time to find what’s the Raspberry Pi IP address, right? It’s annoying.

我真的不想每次都花时间去寻找Raspberry Pi IP地址是什么，对吗？ 它很烦人。

So I found out that I can assign a fixed IP to a specific device, by identifying its the MAC address. The MAC address, aka Media Access Control Address, is a unique identifier. Every device has a different one.

因此，我发现可以通过标识其MAC地址来为特定设备分配固定IP。 MAC地址(也称为媒体访问控制地址)是唯一标识符。 每种设备都有不同的设备。

So I connected to my WiFi router, which is running on IP 192.168.1.1 on my local network, and I went to the DHCP Server menu.

因此，我连接到我的WiFi路由器，该路由器在本地网络的IP 192.168.1.1上运行，然后转到DHCP服务器菜单。

In there, I clicked “Static DHCP” and I was able to assign a specific IP to the MAC address of my Raspberry Pi:

在其中，单击“静态DHCP”，然后可以为Raspberry Pi的MAC地址分配一个特定的IP：

How did I find the MAC address of the Pi?

我如何找到Pi的MAC地址？

I knew the IP address because the VNC Server panel on the Raspberry Pi showed it:

我知道IP地址，因为Raspberry Pi上的VNC服务器面板显示了它：

Then using my MacBook Air I scanned the network using:

然后使用MacBook Air，我使用以下方法扫描了网络：

ifconfig | grep broadcast | arp -a

This printed the IP and MAC addresses of all devices connected to the network, including the one I was interested in, the Raspberry PI:

这会打印出所有连接到网络的设备的IP和MAC地址，包括我感兴趣的Raspberry PI：

? (192.168.1.42) at dc:a6:32:60:20:81 on en0 ifscope [ethernet]

翻译自:

raspberry pi