虛擬介面獲取靜態IP，實際介面沒有？

我有一台執行 Debian 6 的伺服器，分配了兩個靜態 IP 地址：eth0 和 eth0:1（eth0 的虛擬介面）。在啟動時，兩者都應該獲得分配的 IP……但 eth0 沒有。

/etc/network/interfaces:

iface eth0 inet static
   address 192.168.9.171
   netmask 255.255.255.0
   network 192.168.9.0
   broadcast 192.168.9.255
   gateway 192.168.9.23
   # dns-* options are implemented by the resolvconf package, if installed
   dns-nameservers 192.168.9.23 192.168.9.41
   dns-search ourdomain.local
auto eth0:1

iface eth0:1 inet static address 192.168.9.11 netmask 255.255.255.0 network 192.168.9.0 broadcast 192.168.9.255 gateway 192.168.9.23 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 192.168.9.23 192.168.9.41 dns-search ourdomain.local

ifconfig:

eth0      Link encap:Ethernet  HWaddr 00:12:79:95:a4:e7
         inet6 addr: fe80::212:79ff:fe95:a4e7/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:10378 errors:0 dropped:8 overruns:0 frame:0
         TX packets:2256 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:1634657 (1.5 MiB)  TX bytes:453396 (442.7 KiB)
         Interrupt:17

eth0:1    Link encap:Ethernet  HWaddr 00:12:79:95:a4:e7
         inet addr:192.168.9.11  Bcast:192.168.9.255  Mask:255.255.255.0
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         Interrupt:17

lo        Link encap:Local Loopback
         inet addr:127.0.0.1  Mask:255.0.0.0
         inet6 addr: ::1/128 Scope:Host
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:550 errors:0 dropped:0 overruns:0 frame:0
         TX packets:550 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:189714 (185.2 KiB)  TX bytes:189714 (185.2 KiB)

有任何想法嗎？它獲得IP的唯一方法是如果我這樣做ifconfig eth0 192.168.9.171。

那是你的問題，debian 預設自帶：allow-hotplug eth0

在此處查看官方文件：http: //www.debian.org/doc/manuals/debian-reference/ch05.en.html#_the_basic_syntax_of_etc_network_interfaces

引用自：https://serverfault.com/questions/512828