首先物理机通过桥接和路由器AR1联通 配置AR1和AR2联通 [R1]inter g0/0/0 [R1-GigabitEthernet0/0/0]ip add 10.1.1.1 24

[R2]inter g0/0/0 [R2-GigabitEthernet0/0/0]ip add 10.1.1.2 24

[R2]ping 10.1.1.1 PING 10.1.1.1: 56 data bytes, press CTRL_C to break Reply from 10.1.1.1: bytes=56 Sequence=1 ttl=255 time=90 ms Reply from 10.1.1.1: bytes=56 Sequence=2 ttl=255 time=10 ms Reply from 10.1.1.1: bytes=56 Sequence=3 ttl=255 time=20 ms Reply from 10.1.1.1: bytes=56 Sequence=4 ttl=255 time=30 ms Reply from 10.1.1.1: bytes=56 Sequence=5 ttl=255 time=20 ms

--- 10.1.1.1 ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 10/34/90 ms ** 在AR1上保存配置** <R1>save The current configuration will be written to the device. Are you sure to continue? (y/n)[n]:y It will take several minutes to save configuration file, please wait.......... Configuration file had been saved successfully Note: The configuration file will take effect after being activated 此时,我们将AR1的当前配置文件稍作修改 user-interface con 0 authentication-mode password set authentication password cipher 123

** 我们可以通过compare比较当前配置文件和下次启动配置文件的区别** <R1>compare configuration The current configuration is not the same as the next startup configuration file. ====== Current configuration line 53 ====== set authentication password cipher %$%$g!_Bi;XP*Nvly73KpfP,.4iiAa#,y/7W)wc8yM%CxQV.4l,%$%$` user-interface vty 0 4 user-interface vty 16 20 ====== Configuration file line 53 ====== user-interface vty 0 4 user-interface vty 16 20

wlan ac

return 对当前配置文件进行保存,并保存为config.cfg <R1>save config.cfg Are you sure to save the configuration to config.cfg? (y/n)[n]:y

<R1>dir Directory of flash:/

Idx Attr Size(Byte) Date Time(LMT) FileName 0 drw- - Jan 30 2019 03:08:09 dhcp 1 -rw- 121,802 May 26 2014 09:20:58 portalpage.zip 2 -rw- 1,171 Jan 30 2019 03:51:33 config.cfg 3 -rw- 2,263 Jan 30 2019 03:46:48 statemach.efs 4 -rw- 828,482 May 26 2014 09:20:58 sslvpn.zip 5 -rw- 352 Jan 30 2019 03:11:53 private-data.txt 6 -rw- 591 Jan 30 2019 03:46:47 vrpcfg.zip

1,090,732 KB total (784,440 KB free)

我们将R1配置为ftp server,并从客户端将配置文件config.cfg下载下来** [R1]ftp server enable aaa local-user ftp password cipher ftp123 local-user ftp privilege level 15 local-user ftp ftp-directory flash: local-user ftp service-type ftp 物理机登陆AR1

我们将路由器重启,不保存配置

<R1>reboot Info: The system is comparing the configuration, please wait. Warning: All the configuration will be saved to the next startup configuration. Continue ? [y/n]:n System will reboot! Continue ? [y/n]:y Info: system is rebooting ,please wait...

重启起来的AR1中并没有保存之前在console配置密码的配置 我们通过ftp,将拷贝下来的配置文件再次上传到AR1 并设置引导启动 不保存配置再次重启 起来后,查看console口配置,确认为config.cfg生效