#ifconfig
eth0 Link encap:Ethernet HWaddr 00:50:BA:17:80:73
inet addr:10.127.0.33 Bcast:10.127.0.255 Mask:255.255.240.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 b) TX bytes:126 (126.0 b)
Interrupt:5 Base address:0xe800
lo Link encap

ocal Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:6 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:560 (560.0 b) TX bytes:560 (560.0 b)
#route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.127.0.0 * 255.255.240.0 U 0 0 0 eth0
default 10.127.0.178 0.0.0.0 UG 1 0 0 eth0
在ping 的过程中没有request timeout or 主机不可达