【正文】
2020, Shenzhen Polytechnic. All rights reserved. 22 Case Study(4) Router Network server 從 TFTP Server加載 IOS 169。 2020, Shenzhen Polytechnic. All rights reserved. 20 Case Study (2) IOS 備份 fa0/0:PC1:GW: R1 TFTP SERVER 169。 2020, Shenzhen Polytechnic. All rights reserved. 18 備份配置文件到 TFTP服務(wù)器 ( Backup Runningconfig to Tftp Server) Network server runningconfig R1copy runningconfig tftp Address or name of remote host []? Destination filename [r1confg]? !! 691 bytes copied in secs 169。 2020, Shenzhen Polytechnic. All rights reserved. 16 Router show flash System flash directory: File Length Name/status 1 5848552 [5848616 bytes used, 10928600 available, 16777216 total] 16384K bytes of processor board System flash (Read/Write) Router copy flash tftp Source filename []? Address or name of remote host []? Destination filename []? !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Router TFTP Server FLASH RAM copy flash tftp 備份 IOS ( Backup IOS ) 169。 2020, Shenzhen Polytechnic. All rights reserved. 14 破解步驟 (Steps) 169。 2020, Shenzhen Polytechnic. All rights reserved. 12 Case Study(1) 分別按下面步驟修改寄存器的值,然后重新啟動,并比較不同點: 0x2100 0x2101 0x2102 0x2142 Configuration register value in show version 0x2102 :工業(yè)默認值 0x2142 :從 FLASH中啟動,但不使用 NVRAM中的配置文件(用于口令恢復(fù)) 169。 2020, Shenzhen Polytechnic. All rights reserved. 10 配置寄存器組成( Component of Configuration Registers ) 寄存器組成: 4位 16進制 格式: 0xABCD D C B A