最近由于测试的需要,
在一台linux 机器下配置单网卡多个IP,
脚本如下
#!/bin/sh# ip_alias.sh#author.....#20130110#for addint or delete 1,000 net-card alias#from 10.3.231.1~200#from 10.3.232.1~200#from 10.3.233.1~200#from 10.3.234.1~200#from 10.3.235.1~200#10.3.231.1 168027905 #10.3.231.200 168028104#10.3.232.1 168028161#10.3.232.200 168028360#10.3.233.1 168028417#10.3.233.200 168028616#10.3.234.1 168028673#10.3.234.200 168028872#10.3.235.1 168028929#10.3.235.200 168029128#usage: sh ip_alias.sh add#usage: sh ip_alias.sh delcc_max=235bb_max=200ip_pre="10.3."net_card_num=0;if [ "$1" == "add" ];thenfor (( i = 231; i <= cc_max ; i ++ ))do for ((j = 1; j <= bb_max; j ++)) do ip=${ip_pre}${i}"."${j} let net_card_num+=1; echo $net_card_num; ifconfig eth0:$net_card_num $ip netmask 255.255.0.0 up echo $ip donedoneelif [ "$1" == "del" ];then for (( i = 231; i <= cc_max ; i ++ )) do for ((j = 1; j <= bb_max; j ++)) do ip=${ip_pre}${i}"."${j} let net_card_num+=1; echo $net_card_num; ifconfig eth0:$net_card_num $ip netmask 255.255.0.0 down echo $ip donedoneelse echo "error parameter" echo "#usage: sh ip_alias.sh add" echo "#usage: sh ip_alias.sh del"fi 参考了...
IP Alias - linux中单网卡多IP
可以运行命令ifconfig 添加IP Alias 在eth0:0上添加IP地址192.168.0.128/255.255.255.0
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删除IP Alias eth0:0 代码:
# ifconfig eth0:0 192.168.0.128netmask 255.255.255.0 up 复制内容到剪贴板
为一块网卡配置多IP可以通过命令行设置也可以通过配置文件设置，以下我分别通过这两种方式实现： 1.用命令行设置 代码:
# ifconfig eth0:0 down 复制内容到剪贴板
# ifconfig 代码:
ifconfig命令格式：ifconfig 设备名 IP netmask 掩码 broadcast 广播地址 动作 复制内容到剪贴板
可以看到，当前eth0的IP为192.168.16.108，此时请注意一下MAC(00:0E:1F:01:6C:50) 现在我们为eth0绑定另一个IP，设备为eth0:0，可以看到，现在又多了一个IP，注意，网卡实际上只有一块（可以看MAC，都为00:0E:1F:01:6C:50)，却绑定了两个IP，可以依此配置多个IP。 代码:
eth0 Link encap:Ethernet HWaddr 00:0E:1F:01:6C:50inet addr:192.168.16.108 Bcast:192.168.16.255 Mask:255.255.255.0UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1RX packets:2 errors:0 dropped:0 overruns:0 frame:0TX packets:6 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:100RX bytes:224 (224.0 b) TX bytes:387 (387.0 b)Interrupt:11 Base address:0x2000lo Link encap:Local Loopbackinet addr:127.0.0.1 Mask:255.0.0.0UP LOOPBACK RUNNING MTU:16436 Metric:1RX packets:773 errors:0 dropped:0 overruns:0 frame:0TX packets:773 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:0RX bytes:52352 (51.1 Kb) TX bytes:52352 (51.1 Kb) 复制内容到剪贴板
# ifconfig 代码:
# ifconfig eth0:0 192.168.1.100 netmask 255.255.255.0 复制内容到剪贴板
2.通过配置文件设置多IP 网卡IP配置的文件在/etc/sysconfig/network-scripts/下，文件分别为ehtx或ethx:x # cd /etc/sysconfig/network-scripts/# ls ifcfg-eth0 ifdown-ippp ifdown-ppp ifup- aliases ifup-isdn ifup-ppp ifup-wireless ifcfg-lo ifdown-ipv6 ifdown-sit ifup-ippp ifup-plip ifup-routes init.ipv6-global ifdown ifdown-isdn ifdown-sl ifup-ipv6 ifup-plusb ifup-sit network-functions ifdown-aliases ifdown-post ifup ifup-ipx ifup-post ifup-sl network-functions-ipv6 #这是eth0的对应的内容 #vi ifcfg-eth0 代码:
eth0 Link encap:Ethernet HWaddr 00:0E:1F:01:6C:50inet addr:192.168.16.108 Bcast:192.168.16.255 Mask:255.255.255.0UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1RX packets:29 errors:0 dropped:0 overruns:0 frame:0TX packets:6 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:100RX bytes:2879 (2.8 Kb) TX bytes:387 (387.0 b)Interrupt:11 Base address:0x2000eth0:0 Link encap:Ethernet HWaddr 00:0E:1F:01:6C:50inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1RX packets:29 errors:0 dropped:0 overruns:0 frame:0TX packets:6 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:100RX bytes:2879 (2.8 Kb) TX bytes:387 (387.0 b)Interrupt:11 Base address:0x2000lo Link encap:Local Loopbackinet addr:127.0.0.1 Mask:255.0.0.0UP LOOPBACK RUNNING MTU:16436 Metric:1RX packets:7329 errors:0 dropped:0 overruns:0 frame:0TX packets:7329 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:0RX bytes:500674 (488.9 Kb) TX bytes:500674 (488.9 Kb) 复制内容到剪贴板
配置另一IP，因我们刚才已配置了eth0:0，所以此时要用eth0:1了 # cp ifcfg-eth0 ifcfg-eth0:1 修改配置文件，内容如下 # vi ifcfg-eth0:1 代码:
DEVICE=eth0BOOTPROTO=noneONBOOT=yesUSERCTL=noPEERDNS=yesTYPE=EthernetIPADDR=192.168.16.108NETMASK=255.255.255.0HWADDR=00:0e:1f:01:6c:50GATEWAY=192.168.16.1NETWORK=192.168.16.0BROADCAST=192.168.16.255 复制内容到剪贴板
启动eth0:1，查看，此时是不是就已经有三个IP了？ # ifup eth0:1# ifconfig 代码:
DEVICE=eth0:1ONBOOT=yesBOOTPROTO=staticIPADDR=192.168.2.100NETMASK=255.255.255.0NETWORK=192.168.2.0 复制内容到剪贴板
OK，配置成功，这个随便你用哪种方法都可以，用配置文件的方法可以写一些注释，而用ifconfig则简单方便，这就看你的爱好了。 转自： 代码:
eth0 Link encap:Ethernet HWaddr 00:0E:1F:01:6C:50inet addr:192.168.16.108 Bcast:192.168.16.255 Mask:255.255.255.0UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1RX packets:52 errors:0 dropped:0 overruns:0 frame:0TX packets:10 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:100RX bytes:6037 (5.8 Kb) TX bytes:627 (627.0 b)Interrupt:11 Base address:0x2000eth0:0 Link encap:Ethernet HWaddr 00:0E:1F:01:6C:50inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1RX packets:52 errors:0 dropped:0 overruns:0 frame:0TX packets:10 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:100RX bytes:6037 (5.8 Kb) TX bytes:627 (627.0 b)Interrupt:11 Base address:0x2000eth0:1 Link encap:Ethernet HWaddr 00:0E:1F:01:6C:50inet addr:192.168.2.100 Bcast:192.168.2.255 Mask:255.255.255.0UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1RX packets:52 errors:0 dropped:0 overruns:0 frame:0TX packets:10 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:100RX bytes:6037 (5.8 Kb) TX bytes:627 (627.0 b)Interrupt:11 Base address:0x2000lo Link encap:Local Loopbackinet addr:127.0.0.1 Mask:255.0.0.0UP LOOPBACK RUNNING MTU:16436 Metric:1RX packets:14131 errors:0 dropped:0 overruns:0 frame:0TX packets:14131 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:0RX bytes:965895 (943.2 Kb) TX bytes:965895 (943.2 Kb)