CentOS下一張網卡綁定多個IP的方法

CentOS中所有的裝置都是檔案.網卡也在檔案中定義.

IP的綁定也只需要變更檔.

網卡相關檔案在目錄: /etc/sysconfig/network-scripts

查詢當前IP資訊:

ifconfig:

eth0      Link encap:Ethernet  HWaddr 00:50:56:AC:6B:0F  

inet addr:42.51.135.206  Bcast:42.51.135.255  Mask:255.255.255.0

inet6 addr: fe80::250:56ff:fead:6b0f/64 Scope:Link

UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

RX packets:374772 errors:0 dropped:0 overruns:0 frame:0

TX packets:35165 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000 

RX bytes:28759089 (27.4 MiB)  TX bytes:4779278 (4.5 MiB)

在目前的目錄下有檔案:

ifcfg-eth0

在目錄下建立檔案:

ifcfg-eth0:1

內容如下:

DEVICE=eth0:1

IPADDR=42.51.138.1

NETMASK=255.255.255.0

HWADDR=00:50:56:AC:6B:0F

NM_CONTROLLED=yes

ONBOOT=yes

BOOTPROTO=dhcp

TYPE=Ethernet

IPV6INIT=no

USERCTL=no

ifcfg-eth0:2

DEVICE=eth0:2

IPADDR=42.51.138.2

NETMASK=255.255.255.0

HWADDR=00:50:56:AC:6B:0F

NM_CONTROLLED=yes

ONBOOT=yes

BOOTPROTO=dhcp

TYPE=Ethernet

IPV6INIT=no

USERCTL=no

ifcfg-eth0:3

DEVICE=eth0:3

IPADDR=42.51.138.3

NETMASK=255.255.255.0

HWADDR=00:50:56:AC:6B:0F

NM_CONTROLLED=yes

ONBOOT=yes

BOOTPROTO=dhcp

TYPE=Ethernet

IPV6INIT=no

USERCTL=no

重啟網卡:

service network restart

這時候再查看IP:

eth0      Link encap:Ethernet  HWaddr 00:50:56:AC:6B:0F  

inet addr:42.51.135.206  Bcast:42.51.135.255  Mask:255.255.255.0

inet6 addr: fe80::250:56ff:fead:6b0f/64 Scope:Link

UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

RX packets:384344 errors:0 dropped:0 overruns:0 frame:0

TX packets:35241 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000 

RX bytes:29462159 (28.0 MiB)  TX bytes:4791402 (4.5 MiB)

eth0:1    Link encap:Ethernet  HWaddr 00:50:56:AC:6B:0F  

inet addr:42.51.138.1  Bcast:42.51.138.255  Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

eth0:2    Link encap:Ethernet  HWaddr 00:50:56:AC:6B:0F  

inet addr:42.51.138.2  Bcast:42.51.138.255  Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

eth0:3    Link encap:Ethernet  HWaddr 00:50:56:AC:6B:0F  

inet addr:42.51.138.3  Bcast:42.51.138.255  Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

測試:

在其它機器上分別 ping 上面幾個IP.