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Linux下一块网卡设置多个IP地址

2015-11-24 23:30 716 查看

          

       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eth1,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windows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

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