开发板ping不痛PC和虚拟机 ， PC和虚拟机可以互ping

http://blog.csdn.net/chchchdx123/article/details/6914199

Linux昨天晚上终于跑起来了，文件系统也可以用了，我在开机时调用ifconfig设置进行IP地址的设置，可是总是会显示：

ifconfig: SIOCSIFFLAGS: Cannot assign requested address

很纳闷，网上查了一下，原来是MAC地址的问题，经过以下的处理，就OK啦~

# ifconfig eth0 down
# ifconfig eth0 hw ether 00:00:AA:BB:CC:DD
# ifconfig eth0 up
eth0: link down
# ifeth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
      
# ifconfig eth0
eth0    Link encap:Ethernet  HWaddr 00:00:AA:BB:CC:DD 
          inet addr:192.168.1.70  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:11 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:1104 (1.0 KiB)  TX bytes:0 (0.0 B)
          Interrupt:51 Base address:0xe300

# ifconfig eth0 192.168.2.17
# ifconfig
eth0    Link encap:Ethernet  HWaddr 00:00:AA:BB:CC:DD 
          inet addr:192.168.2.17  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:46 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:6967 (6.8 KiB)  TX bytes:0 (0.0 B)
          Interrupt:51 Base address:0xe300

# ping 192.168.2.80
PING 192.168.2.80 (192.168.2.80): 56 data bytes
64 bytes from 192.168.2.80: seq=0 ttl=128 time=4.852 ms
64 bytes from 192.168.2.80: seq=1 ttl=128 time=1.134 ms
64 bytes from 192.168.2.80: seq=2 ttl=128 time=1.020 ms