配置ISA防火墙作为网络间的路由器 (3)

/* 在Client1上进行测试*/

C:\Documents and Settings\xx>ipconfig

Windows IP Configuration

Ethernet adapter Loopback:

Connection-specific DNS Suffix . :
IP Address. . . . . . . . . . . . : 192.168.2.8
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.2.1
　

/* Ping自己的网关（ISA防火墙的LAN2接口）*/

C:\Documents and Settings\xx>ping 192.168.2.1 -n 2

Pinging 192.168.2.1 with 32 bytes of data:

Reply from 192.168.2.1: bytes=32 time=6ms TTL=128
Reply from 192.168.2.1: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.2.1:
Packets: Sent = 2, Received = 2, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 6ms, Average = 3ms

/* Ping ISA防火墙的LAN1接口*/

C:\Documents and Settings\xx>ping 192.168.0.254 -n 2

Pinging 192.168.0.254 with 32 bytes of data:

Reply from 192.168.0.254: bytes=32 time=1ms TTL=128
Reply from 192.168.0.254: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.0.254:
Packets: Sent = 2, Received = 2, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 1ms, Average = 0ms
　

/* Ping LAN1中的Server1*/
C:\Documents and Settings\xx>ping 192.168.0.1 -n 2

Pinging 192.168.0.1 with 32 bytes of data:

Request timed out.
Request timed out.

Ping statistics for 192.168.0.1:
Packets: Sent = 2, Received = 0, Lost = 2 (100% loss),

Ping不通了？Why？相信你应该可以从上面的TCP/IP配置说明中分析出这一点。

我们再在LAN1中的Server1上进行测试：

/* 在Server1上进行测试*/

C:\Documents and Settings\Administrator>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Sydney
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel 21140-Based PCI Fast Ethernet Adapter (Generic)
Physical Address. . . . . . . . . : 00-03-FF-FF-36-DB
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.1
　

/* Ping ISA防火墙的LAN1接口*/
C:\Documents and Settings\Administrator>ping 192.168.0.254

Pinging 192.168.0.254 with 32 bytes of data:

Reply from 192.168.0.254: bytes=32 time<1ms TTL=128
Reply from 192.168.0.254: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.0.254:
Packets: Sent = 2, Received = 2, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
Control-C
^C

/* Ping ISA防火墙的LAN2接口*/
C:\Documents and Settings\Administrator>ping 192.168.2.1

Pinging 192.168.2.1 with 32 bytes of data:

Request timed out.
Request timed out.

Ping statistics for 192.168.2.1:
Packets: Sent = 2, Received = 0, Lost = 2 (100% loss),
Control-C
^C

/* Ping 位于LAN2的Client1*/
C:\Documents and Settings\Administrator>ping 192.168.2.8

Pinging 192.168.2.8 with 32 bytes of data:

Request timed out.

Ping statistics for 192.168.2.8:
Packets: Sent = 1, Received = 0, Lost = 1 (100% loss),
Control-C
^C
　

位于LAN2的接口都Ping不通，Why？很简单，在Server1上没有到LAN2的路由。我们看看Server1的路由表：
C:\Documents and Settings\Administrator>route print

IPv4 Route Table
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 03 ff ff 36 db ...... Intel 21140-Based PCI Fast Ethernet Adapter

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