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KVM 桥接接口无法启动 - inet、inet6、bridge

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KVM 桥接接口无法启动 - inet、inet6、bridge

我正在设置 KVM 主机，该主机将具有多个从外部可见的虚拟机，其/etc/network/interfaces配置与此 类似

# The loopback network interface

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet manual

iface eth0 inet6 static
  address 2001:0000:1004:1019::
  netmask 64
  post-up /sbin/ip -family inet6 route add 2001:0000:1004:10ff:ff:ff:ff:ff dev eth0
  post-up /sbin/ip -family inet6 route add default via 2001:0000:1004:10ff:ff:ff:ff:ff
  pre-down /sbin/ip -family inet6 route del default via 2001:0000:1004:10ff:ff:ff:ff:ff
  pre-down /sbin/ip -family inet6 route del 2001:0000:1004:10ff:ff:ff:ff:ff dev eth0


auto br0
iface br0 inet static
  address 41.100.60.25
  netmask 255.255.255.0
  network 41.100.60.0
  broadcast 41.100.60.255
  gateway 41.100.60.254
  bridge_ports eth0
  bridge_maxwait 12
  bridge_fd 9
  bridge_hello 2
  bridge_maxage 12
  bridge_stp off

  dns-nameservers 8.8.8.8
  dns-search ovh.net

  post-up ip link set br0 address xx:xx:xx:xx:xx:xx

  post-up ip addr add 164.123.123.123/32 dev br0 broadcast 164.123.123.123
  post-down ip addr del 164.123.123.123/32 dev br0

  post-up ip route add default via 41.100.60.254 dev br0
  post-down ip route del default via 41.100.60.254 dev br0

  post-down brctl delbr br0

eth0 和 br0 接口最终都会启动（它们可以工作），但是当我查看启动屏幕时我看到了这一点（由于某种原因它不在启动日志中）：

Waiting for network configuration
Waiting upto 60 more seconds for network configuration"
Booting system without full network configuration

另外当我跑步时

ifquery --state

或者

cat /run/network/ifstate

我可以看到 eth0 和 br0 丢失了

lo=lo

编辑1：

通过使用以下命令

ifup br0 --no-act

如果您使用的话，我得到了正在运行的以下命令集ifup br0

run-parts  /etc/network/if-pre-up.d
ip addr add 41.100.60.25/255.255.255.0 broadcast 41.100.60.255    dev br0 label br0
ip link set dev br0   up
 ip route add default via 41.100.60.254  dev br0 
ip link set br0 address xx:xx:xx:xx:xx:xx
ip addr add 164.123.123.123/32 dev br0 broadcast 164.123.123.123
ip route add default via 41.100.60.254 dev br0
run-parts  /etc/network/if-up.d

这告诉我这个命令被重复了

ip route add default via 41.100.60.254 dev br0

所以从我的配置中删除它之后

post-up ip route add default via 41.100.60.254 dev br0
post-down ip route del default via 41.100.60.254 dev br0

我可以看到

run-parts  /etc/network/if-pre-up.d
ip addr add 41.100.60.25/255.255.255.0 broadcast 41.100.60.255    dev br0 label br0
ip link set dev br0   up
 ip route add default via 41.100.60.254  dev br0 
ip link set br0 address xx:xx:xx:xx:xx:xx
ip addr add 164.123.123.123/32 dev br0 broadcast 164.123.123.123
run-parts  /etc/network/if-up.d

这解决了我运行时重新启动后丢失 br0 的问题

ifquery --state
# or
cat /run/network/ifstate

因为我可以看到

lo=lo
br0=br0

答案1

我决定暂时删除 inet6 静态配置，这样我在“EDIT 1”之后就很好了。

我认为 inet 和 inet6 的配置有两种不同的类型，例如“静态”和“手动”，在运行 ifup 和 ifdown 时会导致一些命令重复。

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