我的本本Ubuntu，能Ping通外网，但却ping不能内网的任何一台电脑？！

wonsin

今天遇到怪事了，我的本本Ubuntu，能Ping通外网，但却ping不能内网的任何一台电脑？！

david@david-laptop:~$ ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
From 192.168.1.9 icmp_seq=9 Destination Host Unreachable
From 192.168.1.9 icmp_seq=10 Destination Host Unreachable
From 192.168.1.9 icmp_seq=11 Destination Host Unreachable
From 192.168.1.9 icmp_seq=13 Destination Host Unreachable
From 192.168.1.9 icmp_seq=14 Destination Host Unreachable
From 192.168.1.9 icmp_seq=15 Destination Host Unreachable

--- 192.168.1.1 ping statistics ---
15 packets transmitted, 0 received, +6 errors, 100% packet loss, time 14023ms
, pipe 3
david@david-laptop:~$ ping 202.96.209.133
PING 202.96.209.133 (202.96.209.133) 56(84) bytes of data.
64 bytes from 202.96.209.133: icmp_seq=1 ttl=242 time=5.29 ms
64 bytes from 202.96.209.133: icmp_seq=2 ttl=242 time=4.82 ms
64 bytes from 202.96.209.133: icmp_seq=3 ttl=242 time=5.48 ms

--- 202.96.209.133 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2007ms
rtt min/avg/max/mdev = 4.827/5.200/5.485/0.288 ms
david@david-laptop:~$ ping 192.168.1.153
PING 192.168.1.153 (192.168.1.153) 56(84) bytes of data.
From 192.168.1.9 icmp_seq=1 Destination Host Unreachable
From 192.168.1.9 icmp_seq=2 Destination Host Unreachable
From 192.168.1.9 icmp_seq=3 Destination Host Unreachable

sumargin

问题：你的IP是多少？
跟你一个网段的电脑能ping到你吗？

liushug

现在很多的win机器都会关掉ICMP响应吧，ping不通就正常了。检查一下看看，现在xp默认的好像就没开。

ascend1

他们的win机器如果开了sp2自带的防火墙就当然ping不通了

wonsin

我把本本重新启动了，又可以了！

quanliking

winxp 上的装了病毒防火墙也会有这样的功能，导致 ping 不通。

而 winxp 开了自带的防火墙，也是能 ping 通的。当然 ping 不通太绝对了。