在raspberry pi中将eth0设置为DHCP

问题描述 投票:-1回答:2

我想将RPI(Raspbian Stretch)的eth0设置为DHCP,我的目标是当我连接任何使用TCP / IP协议进行通信的设备时,该设备将接收IP地址。

我发现很多指南都导致eth0 ip地址静态,这不是我的意图。

目前设备通过eth0连接,ifconfig表示它有一些IP,但ping设备的主机名没有得到回复。 wlan0通过wifi连接。

这是一些信息:

pi@raspberrypi:~ $ ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 169.254.31.197  netmask 255.255.0.0  broadcast 169.254.255.255
        inet6 fe80::ad5a:8219:4c27:b59b  prefixlen 64  scopeid 0x20<link>
        ether b8:27:eb:f3:f2:87  txqueuelen 1000  (Ethernet)
        RX packets 81  bytes 26568 (25.9 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 46  bytes 10544 (10.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 31  bytes 3472 (3.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 31  bytes 3472 (3.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.71  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fd01::60ff:8818:5965:dc58  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::473d:110e:5474:8000  prefixlen 64  scopeid 0x20<link>
        ether b8:27:eb:a6:a7:d2  txqueuelen 1000  (Ethernet)
        RX packets 955  bytes 74427 (72.6 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 184  bytes 22096 (21.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

pi@raspberrypi:~ $ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)

# Please note that this file is written to be used with dhcpcd
# For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'

# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d

任何关于如何实现我的目标的建议都将得到愉快的接受。

linux networking raspberry-pi3 dhcp
2个回答
0
投票

您是否尝试过这样做:https://wiki.debian.org/NetworkConfiguration#Using_DHCP_to_automatically_configure_the_interface即将其添加到/ etc / network / interfaces:

auto eth0
allow-hotplug eth0
iface eth0 inet dhcp

如果你真的很迂腐,你可以创建像/etc/network/interfaces.d/eth0-dhcp这样的文件并将这些行粘贴到其中 - 最终结果将是相同的。


-1
投票

NetWork Manager(nmcli)可能正在设备上运行,并且已配置为使用静态IP。

以下命令可以帮助您检查设备是否由nmcli管理:

nmcli d

nmcli con show

运行以下命令,并将“有线连接1”替换为您的连接名称。

nmcli con show 'Wired connection 1' | grep 'ipv4.method'

如果设置为DHCP,则ipv4.method将显示“auto”;如果设置为static,则显示“manual”。

http://www.intellamech.com/RaspberryPi-projects/rpi_nmcli.html

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