通信问题

/program # ping 10.143.126.97
PING 10.143.126.97 (10.143.126.97): 56 data bytes

--- 10.143.126.97 ping statistics ---
263 packets transmitted, 0 packets received, 100% packet loss
/program # route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.143.125.96 * 255.255.255.224 U 0 0 0 eth2
10.143.126.96 * 255.255.255.224 U 0 0 0 eth3
192.168.100.0 * 255.255.255.0 U 0 0 0 eth0
192.168.101.0 * 255.255.255.0 U 0 0 0 eth1
/program #
这是详细的问题，ping 10.143.126.97 不通这是为啥啊？
还有这些提示是什么意思？详细说说，谢谢各位了 ，刚接触这个都不明