问个SA/network的问题, 面试中问到的:

If hostA can not talk to HostB, but can talk to any hosts in its own subnet, how do you troubleshoot which goes wrong?

ping hostB (say google, yahoo) not working.
tracerout failed too.

ping hostC (a server in its own network) works.

所有跟帖： 

• 这个太简单了 default gateway 的问题，呵呵 -?ttу- ♂ (0 bytes) () 12/02/2010 postreply 11:59:40

• 还有可能是netmask不对，但是这种问题考官可能都不一定搞得清楚 -?ttу- ♂ (0 bytes) () 12/02/2010 postreply 12:00:47

• default gateway什么问题? -haonverhaoxifu- ♀ (0 bytes) () 12/02/2010 postreply 12:49:15

• 一般是没有设置default gateway - 这个问题你只要回答check/ping default gateway就行了 -?ttу- ♂ (0 bytes) () 12/02/2010 postreply 13:39:47

• 你要跟人牛逼就再加上设置的方法 route add default ip_of_gateway... -?ttу- ♂ (104 bytes) () 12/02/2010 postreply 13:42:59