Linux中怎么给一块网卡设置多个IP地址

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在windows下给一块网卡设置多个IP，是比较容易的，今天我写的内容是关于在LINUX系统下，给一块网卡设置多个IP地址，在Linux系统下面，第一块网卡就叫eth0，第二块网卡就叫eth2，这里我们给第一块网卡设置多个IP,在Linux下，配置网卡的配置文件在目录/etc/sysconfig/network-script/下 ，原来网卡的配置文件名为ifcfg-eth0 ，我们给一块网卡配置多个IP地址的配置文件命名为ifcfg-eth0:1和ifcfg-eth0 :2，下面看操作如下：

Last login: Fri Aug  6 00:35:49 2010 from 172.28.102.41  
  [root@rep1 ~]# ifconfig                             ###原来网卡的配置
  eth0      Link encap:Ethernet  HWaddr 00:0C:29:D5:39:A0   
          inet addr:   172.28.90.101 Bcast:172.28.255.255  Mask:255.255.0.0  
          inet6 addr: fe80::20c:29ff:fed5:39a0/64 Scope:Link  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1  
          RX packets:3125184 errors:0 dropped:0 overruns:0 frame:0  
          TX packets:101356 errors:0 dropped:0 overruns:0 carrier:0  
          collisions:0 txqueuelen:1000  
          RX bytes:462342976 (440.9 MiB)  TX bytes:10788008 (10.2 MiB)  
          Interrupt:75 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:1427 errors:0 dropped:0 overruns:0 frame:0  
          TX packets:1427 errors:0 dropped:0 overruns:0 carrier:0  
          collisions:0 txqueuelen:0  
          RX bytes:3335045 (3.1 MiB)  TX bytes:3335045 (3.1 MiB)

[root@rep1 ~]# cd /etc/sysconfig/net  
netconsole       network          networking/      network-scripts/  
  [root@rep1 ~]# cd /etc/sysconfig/network-scripts/            #配置文件的目录路径
[root@rep1 network-scripts]# ls  
  ifcfg-eth0   ifdown-isdn    ifup-aliases  ifup-plip    ifup-wireless  
ifcfg-lo      ifdown-post    ifup-bnep     ifup-plusb   init.ipv6-global  
ifdown        ifdown-ppp     ifup-eth      ifup-post    net.hotplug  
ifdown-bnep   ifdown-routes  ifup-ippp     ifup-ppp     network-functions  
ifdown-eth    ifdown-sit     ifup-ipsec    ifup-routes  network-functions-ipv6  
ifdown-ippp   ifdown-sl      ifup-ipv6     ifup-sit  
ifdown-ipsec  ifdown-tunnel  ifup-ipx      ifup-sl  
ifdown-ipv6   ifup           ifup-isdn     ifup-tunnel  
  [root@rep1 network-scripts]# cp ifcfg-eth0 ifcfg-eth0:1      #复制原来网卡配置
[root@rep1 network-scripts]# cp ifcfg-eth0 ifcfg-eth0:2     #复制原来网卡配置
[root@rep1 network-scripts]# vi ifcfg-eth0:1  
# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]  
DEVICE=eth0:1                                           #此处修改
BOOTPROTO=static  
BROADCAST=172.28.255.255                  #IP地址的广播地址
HWADDR=00:0C:29:D5:39:A0               #MAC地址，不用修改  
IPADDR=172.28.90.201                           #设置新的IP
NETMASK=255.255.0.0  
NETWORK=172.28.0.0  
ONBOOT=yes  
~  
——————————————————————————————————  
~  
"ifcfg-eth0:1" 9L, 206C written  
[root@rep1 network-scripts]# vi ifcfg-eth0:2  
# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]  
DEVICE=eth0:2                                                  #此处修改
BOOTPROTO=static  
BROADCAST=172.28.255.255                      #IP地址的广播地址  
HWADDR=00:0C:29:D5:39:A0                      #MAC地址，不用修改  
IPADDR=172.28.90.202                                   #设置新的IP  
NETMASK=255.255.0.0  
NETWORK=172.28.0.0  
ONBOOT=yes  
~  
———————————————————————————————————  
~  
"ifcfg-eth0:2" 9L, 206C written  
  [root@rep1 network-scripts]# service network restart           #重启下网络服务
Shutting down interface eth0:                              [  OK  ]  
Shutting down loopback interface:                          [  OK  ]  
Bringing up loopback interface:                            [  OK  ]  
Bringing up interface eth0:                                [  OK  ]  
  [root@rep1 network-scripts]# ifconfig                             #修改好后验证是否成功
eth0      Link encap:Ethernet  HWaddr 00:0C:29:D5:39:A0   
          inet addr:   172.28.90.101 Bcast:172.28.255.255  Mask:255.255.0.0  
          inet6 addr: fe80::20c:29ff:fed5:39a0/64 Scope:Link  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1  
          RX packets:3131096 errors:0 dropped:0 overruns:0 frame:0  
          TX packets:101660 errors:0 dropped:0 overruns:0 carrier:0  
          collisions:0 txqueuelen:1000  
          RX bytes:462925438 (441.4 MiB)  TX bytes:10829005 (10.3 MiB)  
          Interrupt:75 Base address:0x2000

eth0:1    Link encap:Ethernet  HWaddr 00:0C:29:D5:39:A0   
          inet addr:   172.28.90.201 Bcast:172.28.255.255  Mask:255.255.0.0  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1  
          Interrupt:75 Base address:0x2000

eth0:2    Link encap:Ethernet  HWaddr 00:0C:29:D5:39:A0   
          inet addr:   172.28.90.202 Bcast:172.28.255.255  Mask:255.255.0.0  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1  
          Interrupt:75 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:1427 errors:0 dropped:0 overruns:0 frame:0  
          TX packets:1427 errors:0 dropped:0 overruns:0 carrier:0  
          collisions:0 txqueuelen:0  
          RX bytes:3335045 (3.1 MiB)  TX bytes:3335045 (3.1 MiB)

[root@rep1 network-scripts]# ls
ifcfg-eth0      ifdown-ipsec   ifdown-tunnel  ifup-ipx     ifup-sl  
  ifcfg-eth0:1  ifdown-ipv6    ifup           ifup-isdn    ifup-tunnel  
  ifcfg-eth0:2  ifdown-isdn    ifup-aliases   ifup-plip    ifup-wireless  
ifcfg-lo      ifdown-post    ifup-bnep      ifup-plusb   init.ipv6-global  
ifdown        ifdown-ppp     ifup-eth       ifup-post    net.hotplug  
ifdown-bnep   ifdown-routes  ifup-ippp      ifup-ppp     network-functions  
ifdown-eth    ifdown-sit     ifup-ipsec     ifup-routes  network-functions-ipv6  
ifdown-ippp   ifdown-sl      ifup-ipv6      ifup-sit  
[root@rep1 network-scripts]#  
 

我们再wind下验证下是否通。。。  

C:\Documents and Settings\Administrator>ping 172.28.90.101  

Pinging 172.28.90.101 with 32 bytes of data:  

Reply from 172.28.90.101: bytes=32 time=17ms TTL=63
Reply from 172.28.90.101: bytes=32 time=14ms TTL=63  

Ping statistics for 172.28.90.101:  
    Packets: Sent = 2, Received = 2, Lost = 0 (0% loss),  
Approximate round trip times in milli-seconds:  
    Minimum = 14ms, Maximum = 17ms, Average = 15ms  
Control-C  
^C  
  C:\Documents and Settings\Administrator>ping 172.28.90.201  

Pinging 172.28.90.201 with 32 bytes of data:  

Reply from 172.28.90.201: bytes=32 time=38ms TTL=63
Reply from 172.28.90.201: bytes=32 time=18ms TTL=63
Reply from 172.28.90.201: bytes=32 time=2ms TTL=63

Ping statistics for 172.28.90.201:  
    Packets: Sent = 3, Received = 3, Lost = 0 (0% loss),  
Approximate round trip times in milli-seconds:  
    Minimum = 2ms, Maximum = 38ms, Average = 19ms  
Control-C  
^C  
  C:\Documents and Settings\Administrator>ping 172.28.90.202  

Pinging 172.28.90.202 with 32 bytes of data:  

Reply from 172.28.90.202: bytes=32 time=39ms TTL=63
Reply from 172.28.90.202: bytes=32 time=17ms TTL=63
Reply from 172.28.90.202: bytes=32 time=17ms TTL=63  

以上就是Linux中怎么给一块网卡设置多个IP地址，小编相信有部分知识点可能是我们日常工作会见到或用到的。希望你能通过这篇文章学到更多知识。更多详情敬请关注创新互联行业资讯频道。