一个非常怪异却经常遇到的问题，哪位高手能够彻底解释它？？？？？？

[liuhszh]

一台WIN2000 SERVER电脑A，单网卡配两个IP如下：
10.95.190.243 10.95.190.254 202.102.224.68
202.102.227.68
192.168.1.10

电脑B 装WINXP，
网卡配双IP： 10.95.190.250 10.95.190.254 202.102.224.68
192.168.1.1 192.168.1.10
通过HUB相连，在A电脑PING 10.95.190.254,192.168.1.10,192.168.1.1,
10.95.190.250 都可以PING通，
但是在A中确搜索不到B电脑，我用了10.95.190.250,192.168.1.1和电脑名
都不行，
在B中却可以找到A
请高手指点迷津？
下附A电脑的ROUTE

===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0xa000003 ...00 06 5b e2 97 41

...... 3Com EtherLink PCI
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 10.95.190.254 10.95.190.243 1
10.95.190.240 255.255.255.248 10.95.190.243 10.95.190.243 1
10.95.190.243 255.255.255.255 127.0.0.1 127.0.0.1 1
10.255.255.255 255.255.255.255 10.95.190.243 10.95.190.243 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.1.0 255.255.255.0 192.168.1.10 10.95.190.243 1
192.168.1.10 255.255.255.255 127.0.0.1 127.0.0.1 1
192.168.1.255 255.255.255.255 192.168.1.10 10.95.190.243 1
224.0.0.0 224.0.0.0 10.95.190.243 10.95.190.243 1
255.255.255.255 255.255.255.255 10.95.190.243 10.95.190.243 1
Default Gateway: 10.95.190.254
===========================================================================
Persistent Routes:
None
Windows 2000 IP Configuration Host Name . . . . . . . . . . . . : sex
Primary DNS Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast IP Routing Enabled. . . . . . . . :

Yes WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter ny-LAN: Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com 3C920 Integrated Fast Ethernet Controller

(3C905C-TX Compatible)
Physical Address. . . . . . . . . : 00-06-5B-E2-97-41 DHCP Enabled. . . . . . . .

. . . : No IP Address. . . . . . . . . . . . : 192.168.1.10 Subnet Mask . . . .

. . . . . . . : 255.255.255.0 IP Address. . . . . . . . . . . . : 10.95.190.243

Subnet Mask . . . . . . . . . . . : 255.255.255.248 Default Gateway . . . . . . . . . :

10.95.190.254 DNS Servers . . . . . . . . . . . : 202.102.224.68
202.102.227.68

[qxzhu]

1. 在A电脑PING 10.95.190.254,192.168.1.10,192.168.1.1,
10.95.190.250 都可以PING通-------说明网络连接没问题

2. 但是在A中确搜索不到B电脑，我用了10.95.190.250,192.168.1.1和电脑名
都不行
可能是B中装有防火墙如天网或有设置代理，并且屏蔽了某些端口或IP，或协议
如装有先关闭试试

[liuhszh]

在B机中（WINXP)并没有装防火墙，
另外如何看其设有代理