DHCP 客户端订购问题 - 网桥与物理接口

DHCP 客户端订购问题 - 网桥与物理接口

我在一个 Ubuntu 系统上,有几个物理网卡和一个配置的bridge0接口(为内部虚拟机和容器提供对LAN其余部分的访问)。我有一个专门应用于bridge0接口的MAC地址,并且我有绑定到我的 DHCP 服务器上该 MAC 的静态 IP。 bridge0 接口应该总是从 DHCP 服务器获取 192.168.15.150,但目前这不起作用,我不明白为什么。当然,这在几个月甚至几年内都按预期工作,现在开始表现不同,而且我没有对这部分配置进行任何显式更改。

当系统启动时,它从服务器获取(错误的)非静态地址,如下所示:

ifconfig启动后立即输出:

lwobker@lwobker-vms:~$ ifconfig
bridge1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.15.249  netmask 255.255.255.0  broadcast 192.168.15.255
        ether 00:17:b6:00:66:e8  txqueuelen 1000  (Ethernet)
        RX packets 468  bytes 110557 (110.5 KB)
        TX packets 305  bytes 53792 (53.7 KB)

eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether ac:1f:6b:b3:ad:fa  txqueuelen 1000  (Ethernet)
        RX packets 689  bytes 221475 (221.4 KB)
        TX packets 591  bytes 90791 (90.7 KB)

请注意eno1(这是连接到 DHCP 服务器的物理接口)根本没有获得地址。

有趣的是,如果我手动进入控制台并执行 a ,dhclient -r然后执行 a dhclient,bridge0 接口现在会获得所需的 .150 地址,而 .249 地址会以某种方式“迁移”到接口eno1...这对我来说毫无意义。

ifconfig执行 dhclient 反弹后的输出:

bridge1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.15.150  netmask 255.255.255.0  broadcast 192.168.15.255
        ether 00:17:b6:00:66:e8  txqueuelen 1000  (Ethernet)
        RX packets 47973  bytes 3180002 (3.1 MB)
        TX packets 23345  bytes 571811191 (571.8 MB)

eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.15.249  netmask 255.255.255.0  broadcast 192.168.15.255
        ether ac:1f:6b:b3:ad:fa  txqueuelen 1000  (Ethernet)
        RX packets 81247  bytes 15919012 (15.9 MB)
        TX packets 458449  bytes 672351752 (672.3 MB)

/etc/network/interfaces文件:

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

# put eno1 and enp2s0 in manual mode becuase it's going to be a bridge slave
iface eno1 inet manual
iface ens2 inet manual

##Bridge  Name ###
auto bridge1
### Bridge Information
iface bridge1 inet dhcp
bridge_ports eno1 ens2
bridge_stp off
bridge_fd 0.0
bridge_waitport 0
# we want to fix the MAC addr assigned to the bridge so it gets the right IP address 
# each time from my DHCP server...
post-up ip link set bridge1 address 00:17:b6:00:66:e8

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