㈠安装GNS3
如果安装过程有提示WINPACP已经安装过了，选择“取消”

㈡配置GNS3基本参数

选择 step1

          一般：
          配置两个地方

          ① 拓扑图存放路径
          ② 存放临时文件

          Dynamips：

          ① 这个是IOS模拟的重要组件，必须关联上，在GNS3安装目录里有

② 临时文件的存放目录

③ 然后进行测试：

Capture：

存放抓包文件的临时目录

          Qemu：

          存放PIX临时文件

然后测试

选择 step2

这里我使用3640的IOS

          IDLE PC的值默认是没有的，要计算后才有

          接下来计算IDLE的值

R1>en
R1#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#int f0/0
R1(config-if)#ip add 12.12.12.1 255.255.255.0
R1(config-if)#no sh
R1(config-if)#end
R1#

IDLE只要计算一次，以后就可以直接用

㈢测试：

R1>en
R1#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#int f0/0
R1(config-if)#ip add 192.168.1.110 255.255.255.0
R1(config-if)#no sh
R1(config-if)#end
R1#
*Mar  1 00:10:07.191: %SYS-5-CONFIG_I: Configured from console by console
R1#
*Mar  1 00:10:07.859: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Mar  1 00:10:08.859: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R1#ping 192.168.1.111

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.111, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/65/124 ms



R2>en
R2#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R2(config)#int f0/0
R2(config-if)#ip add 192.168.1.111 255.255.255.0
R2(config-if)#no sh
R2(config-if)#end
R2#
*Mar  1 00:10:48.759: %SYS-5-CONFIG_I: Configured from console by console
R2#
*Mar  1 00:10:48.979: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Mar  1 00:10:49.979: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R2#
R2#ping 192.168.1.110

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.110, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 20/53/88 ms

ITPub博客

CCNA网络系列实验（1）之GNS3安装配置指南

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