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具有静态 IP 的 KVM 网络桥接器通过 DHCP 获取第二个 IP

tag-icon • tag-icon networking dhcp kvm-virtualization network-bridge
具有静态 IP 的 KVM 网络桥接器通过 DHCP 获取第二个 IP

我做了一切这个答案，我可以通过静态 IP 连接到虚拟机，但我仍然从 DHCP 服务器获取 IP，而不是接口上的静态 IP，这是怎么回事？我该如何摆脱它？可能是因为 vnet0 吗？我在这台机器上尝试了很多不同的配置。使用 DHCP 时，网络上发生了一些非常奇怪的事情，Cisco 路由器（旧款）向具有不同 MAC 地址的虚拟机提供相同的 IP 地址，因此现在尝试使用静态。

我在虚拟机上运行的是 Ubuntu Server 18.04.1，操作系统与虚拟机相同

我的主机上的 /etc/network/interfaces：

auto br0
iface br0 inet static
address 10.101.22.10
netmask 255.255.255.0
network 10.101.22.0
broadcast 10.101.22.255
gateway 10.101.22.253
dns-nameservers 8.8.8.8
bridge_ports enp3s0
 bridge_fd 9
 bridge_hello 2
 bridge_maxage 12
 bridge_stp off

在虚拟机上：

auto enp1s0
iface enp1s0 inet static
address 10.101.22.11
netmask 255.255.255.0
network 10.101.22.0
broadcast 10.101.22.255
gateway 10.101.22.253
dns-nameservers 8.8.8.8

我的 ifconfigs 在主机上：

br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.101.22.10  netmask 255.255.255.0  broadcast 10.101.22.255
        inet6 fe80::325a:3aff:fe81:71d7  prefixlen 64  scopeid 0x20<link>
        ether 30:5a:3a:81:71:d7  txqueuelen 1000  (Ethernet)
        RX packets 3459  bytes 388406 (388.4 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2126  bytes 281068 (281.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::325a:3aff:fe81:71d7  prefixlen 64  scopeid 0x20<link>
        ether 30:5a:3a:81:71:d7  txqueuelen 1000  (Ethernet)
        RX packets 3492  bytes 759637 (759.6 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1890  bytes 293653 (293.6 KB)
        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 258  bytes 21898 (21.8 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 258  bytes 21898 (21.8 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vnet0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::fc54:ff:fea0:202f  prefixlen 64  scopeid 0x20<link>
        ether fe:54:00:a0:20:2f  txqueuelen 1000  (Ethernet)
        RX packets 887  bytes 121511 (121.5 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1843  bytes 503003 (503.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

在虚拟机上：

enp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.101.22.198  netmask 255.255.255.0  broadcast 10.101.22.255
        inet6 fe80::5054:ff:fea0:202f  prefixlen 64  scopeid 0x20<link>
        ether 52:54:00:a0:20:2f  txqueuelen 1000  (Ethernet)
        RX packets 1843  bytes 499023 (499.0 KB)
        RX errors 0  dropped 613  overruns 0  frame 0
        TX packets 899  bytes 122831 (122.8 KB)
        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 166  bytes 13132 (13.1 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 166  bytes 13132 (13.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

答案1

18.04 不使用 /etc/network/interface。您需要熟悉 netplan 并在/etc/netplan/*yaml

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