linux 同一个网卡添加多个ip网段

[allen_00]

如题： 为什么我的一个网卡只能添加4个不同网段，难道不能任意添加个数吗？限制个数跟什么有关？？？
这是脚本：

ifconfig eth0 down
ifconfig eth0 hw ether 01:02:03:04:05:06
ifconfig eth0 192.168.0.114 netmask 255.255.255.0 up
ifconfig eth0:0 192.168.2.114 netmask 255.255.255.0 up 
ifconfig eth0:1 192.168.3.114 netmask 255.255.255.0 up
ifconfig eth0:2 192.168.4.114 netmask 255.255.255.0 up
ipconfig eth0:3 192.168.5.114 netmask 255.255.255.0 up
ipconfig eth0:4 192.168.6.114 netmask 255.255.255.0 up
ipconfig eth0:5 192.168.7.114 netmask 255.255.255.0 up
ipconfig eth0:6 192.168.8.114 netmask 255.255.255.0 up
route add 192.168.0.114 gw 192.168.0.1

下面是ifconfig的结果

[root@bilsum user]#ifconfig
eth0      Link encap:Ethernet  HWaddr 6A:2E:A9:45:9D:22  
          inet addr:192.168.0.114  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:6183 errors:2 dropped:22 overruns:0 frame:2
          TX packets:91 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:553021 (540.0 KiB)  TX bytes:8960 (8.7 KiB)
          Interrupt:24 Base address:0xc000 

eth0:0    Link encap:Ethernet  HWaddr 6A:2E:A9:45:9D:22  
          inet addr:192.168.2.114  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:24 Base address:0xc000 

eth0:1    Link encap:Ethernet  HWaddr 6A:2E:A9:45:9D:22  
          inet addr:192.168.3.114  Bcast:192.168.3.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:24 Base address:0xc000 

eth0:2    Link encap:Ethernet  HWaddr 6A:2E:A9:45:9D:22  
          inet addr:192.168.4.114  Bcast:192.168.4.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:24 Base address:0xc000 

eth1      Link encap:Ethernet  HWaddr 4A:D7:82:DA:E4:06  
          inet addr:192.168.1.114  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:27 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

[ckc]

我刚刚试了一下，多 加几个也没问题

[allen_00]

请问是否跟网卡芯片有关？？ 我的是DP83620

[iasky]

可以很多个的。