配置ISA防火墙作为网络间的路由器 (4)

2008-02-23 04:56:07来源：互联网阅读 ()

(Generic)
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.0.1 192.168.0.1 20
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.0.0 255.255.255.0 192.168.0.1 192.168.0.1 20
192.168.0.1 255.255.255.255 127.0.0.1 127.0.0.1 20
192.168.0.255 255.255.255.255 192.168.0.1 192.168.0.1 20
224.0.0.0 240.0.0.0 192.168.0.1 192.168.0.1 20
255.255.255.255 255.255.255.255 192.168.0.1 192.168.0.1 1
Default Gateway: 192.168.0.1
===========================================================================
Persistent Routes:

默认路由是192.168.0.1，没有到LAN2的路由。对于此情况，你需要添加到LAN2的路由，或者重新设置默认网关为ISA防火墙的LAN1接口。在具体采用哪种方式时，你需要根据网络的环境来决定。对于不能修改默认网关的情况，例如此主机是另外的网络出口的情况（如此计算机上还接有另外一个网卡，连接到Internet），你需要添加到LAN2的路由。

6、在LAN1的Server1上添加LAN2的路由

在Server1的cmd下运行route add 192.168.2.0 mask 255.255.255.0 192.168.0.254，然后看看路由表：

C:\Documents and Settings\Administrator>route add 192.168.2.0 mask 255.255.255.0 192.168.0.254 -p

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
(Generic)
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.0.1 192.168.0.1 20
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.0.0 255.255.255.0 192.168.0.1 192.168.0.1 20
192.168.0.1 255.255.255.255 127.0.0.1 127.0.0.1 20
192.168.0.255 255.255.255.255 192.168.0.1 192.168.0.1 20
192.168.2.0 255.255.255.0 192.168.0.254 192.168.0.1 1
224.0.0.0 240.0.0.0 192.168.0.1 192.168.0.1 20
255.255.255.255 255.255.255.255 192.168.0.1 192.168.0.1 1
Default Gateway: 192.168.0.1
===========================================================================
Persistent Routes:
Network Address Netmask Gateway Address Metric
192.168.2.0 255.255.255.0 192.168.0.254 1

7、测试LAN2到LAN1的连通性三

现在我们再来测试一下LAN1和LAN2间的连通性：

/* 在Server1上进行测试*/

/* Ping ISA防火墙的LAN2接口*/

C:\Documents and Settings\Administrator>ping 192.168.2.1 -n 8

Pinging 192.168.2.1 with 32 bytes of data:

Reply from 192.168.2.1: bytes=32 time=1ms 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 = 1ms, Average = 0ms
Control-C
^C

/* Ping 位于LAN2的Client1*/
C:\Documents and Settings\Administrator>ping 192.168.2.8 -n 2

Pinging 192.168.2.8 with 32 bytes of data:

Reply from 192.168.2.8: bytes=32 time=1ms TTL=127
Reply from 192.168.2.8: bytes=32 time=1ms TTL=127

Ping statistics for 192.168.2.8:
Packets: Sent = 2, Received = 2, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 1ms, Average = 1ms

然后，我们在Client1上进行一下测试：

/* 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 位于LAN1的Server1*/

C:\Documents and Settings\xx>ping 192.168.0.1

Pinging 192.168.0.1 with 32 bytes of data:

Reply from 192.168.0.1: bytes=32 time=3ms TTL=127

Ping statistics for 192.168.0.1:
Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),

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