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/netnetconsole network networking/ network-scripts/[root@rep1 ~]# cd /etc/sysconfig/network-scripts/ #配置文件的目录路径[root@rep1 network-scripts]# lsifcfg-eth0 ifdown-isdn ifup-aliases ifup-plip ifup-wirelessifcfg-lo ifdown-post ifup-bnep ifup-plusb init.ipv6-globalifdown ifdown-ppp ifup-eth ifup-post net.hotplugifdown-bnep ifdown-routes ifup-ippp ifup-ppp network-functionsifdown-eth ifdown-sit ifup-ipsec ifup-routes network-functions-ipv6ifdown-ippp ifdown-sl ifup-ipv6 ifup-sitifdown-ipsec ifdown-tunnel ifup-ipx ifup-slifdown-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=staticBROADCAST=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IPNETMASK=255.255.0.0NETWORK=172.28.0.0ONBOOT=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=staticBROADCAST=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IPNETMASK=255.255.0.0NETWORK=172.28.0.0ONBOOT=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
有人说,幸福是一种人生的感悟，一种个人的体验。
