This problem has been working for a long time, I always thought it was my own setting, and finally I found a bug, test, depressed.
Solution:
Until
/ etc / sysconfig / network-scripts / ifcfg-eth
/ etc / sysconfig / networking / devices / ifcfg-eth where represents the ID number of Ethernet Adapter, generally 0. When zero, the / etc / sysconfig / network-scripts / ifcfg-eth0 / etc / sysconfig / networking / devices / ifcfg-eth0 is added to check_link_down () {Return 1;} Exclusive / ETC / sysconfig / networking / profiles / default / ifcfg-eth0 file, then add this paragraph, then restart the system. When I restart the system, the crash is dead, but after reset, you can use the network under the VM machine, haha
