虚拟接口未显示在 ifconfig 中?

虚拟接口未显示在 ifconfig 中?

我正在尝试在我的 CentOS linux 机器上创建一个虚拟接口,用于基于名称的虚拟主机;请找到以下是设备的信息:-

DEVICE=eth0
BOOTPROTO=dhcp
HWADDR=00:0c:29:4e:1c:14
MTU=1500
NM_CONTROLLED=yes
ONBOOT=yes
TYPE=Ethernet
USERCTL=no
PEERDNS=yes
IPV6INIT=no


DEVICE=eth0:1
BOOTPROTO=none
IPADDR=192.168.1.5
NETMASK=255.255.255.0
NM_CONTROLLED=yes
ONBOOT=no
HWADDR=00:0C:29:4E:1C:14
TYPE=Ethernet
PREFIX=24
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0:1"
UUID=7758ac79-c4a2-dd87-1760-71284a316d00

运行 ifconfig 不会显示虚拟设备 eth0:1;

[root@centos network-scripts]# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:0C:29:4E:1C:14
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe4e:1c14/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:24368 errors:0 dropped:0 overruns:0 frame:0
          TX packets:21884 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:9793531 (9.3 MiB)  TX bytes:4460526 (4.2 MiB)
          Interrupt:19 Base address:0x2000

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:799 errors:0 dropped:0 overruns:0 frame:0
          TX packets:799 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:82196 (80.2 KiB)  TX bytes:82196 (80.2 KiB)

pan0      Link encap:Ethernet  HWaddr EE:75:AD:75:9C:84
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

sit0      Link encap:IPv6-in-IPv4
          NOARP  MTU:1480  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

我可能缺少什么想法。

----------编辑1:-

重新启动我的 Linux 盒子,可以看到所有配置的虚拟接口,如下所示:- 系统重新启动后:-

[root@centos ~]# date
Tue Apr 30 21:25:16 PDT 2013
[root@centos ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0C:29:4E:1C:14
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe4e:1c14/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:97 errors:0 dropped:0 overruns:0 frame:0
          TX packets:117 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:9756 (9.5 KiB)  TX bytes:17204 (16.8 KiB)
          Interrupt:19 Base address:0x2000

eth0:1    Link encap:Ethernet  HWaddr 00:0C:29:4E:1C:14
          inet addr:192.168.1.10  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:19 Base address:0x2000

eth0:2    Link encap:Ethernet  HWaddr 00:0C:29:4E:1C:14
          inet addr:192.168.1.40  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:19 Base address:0x2000

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:4 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:240 (240.0 b)  TX bytes:240 (240.0 b)

但完成后system-network-restart我的所有设置都消失了:请在运行命令后找到以下结果:-

[root@centos ~]# service network restart
Shutting down interface eth0:  Device state: 3 (disconnected)
                                                           [  OK  ]
Shutting down loopback interface:                          [  OK  ]
Bringing up loopback interface:                            [  OK  ]
Bringing up interface eth0:  Active connection state: activating
Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/1
state: activated
Connection activated

[root@centos ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0C:29:4E:1C:14
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe4e:1c14/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:290 errors:0 dropped:0 overruns:0 frame:0
          TX packets:292 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:25640 (25.0 KiB)  TX bytes:41720 (40.7 KiB)
          Interrupt:19 Base address:0x2000

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:4 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:240 (240.0 b)  TX bytes:240 (240.0 b)

答案1

你需要设置

ONBOOT=yes

那么当您启动/重新启动网络服务时,该接口将会启动或者您可以使用手动启动该接口

ifup eth0:1

对于羽绒服

ifdown eth0:1 

答案2

您必须更改BOOTPROTO=noneBOOTPROTO=static.

答案3

虚拟接口(又名别名设备)需要位于它自己的单独文件中ifcfg-eth0:1像这样:

# /etc/sysconfig/network-scripts/ifcfg-eth0:1
DEVICE=eth0:1
BOOTPROTO=static
IPADDR=192.168.1.5
NETMASK=255.255.255.0
NM_CONTROLLED=yes
ONBOOT=yes
HWADDR=00:0C:29:4E:1C:14
TYPE=Ethernet
PREFIX=24
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0:1"
UUID=7758ac79-c4a2-dd87-1760-71284a316d00

参考

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