cisco2811路由器密码恢复
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cisco2811路由器密码恢复
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???1 重啟 路由器 按 ctrl + pause break 鍵 進入mini IOS
2 修改寄存器值改變啟動次序
rommon 1 > confreg 0x2142
3 在mini IOS下重啟路由
rommon 2 > reset
System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
Copyright (c) 2000 by cisco Systems, Inc.
cisco 2621 (MPC860) processor (revision 0x200) with 60416K/5120K bytes of memory
Self decompressing the image :
########################################################################## [OK]
Restricted Rights Legend
Processor board ID JAD05190MTZ (4292891495)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
2 FastEthernet/IEEE 802.3 interface(s)
2 Low-speed serial(sync/async) network interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
--- System Configuration Dialog ---
Continue with configuration dialog? [yes/no]: n
Press RETURN to get started!
Router>
看這里進入系統(tǒng)之后 直接就進入了用戶模式 沒要密碼
Router>en
Router#copy start run
Destination filename [running-config]?
552 bytes copied in 0.416 secs (1326 bytes/sec)
ru1#
我們 輸入enable 進入特權(quán)模式 輸入命令 copy start run 從NVRAM 里面調(diào)用配置到內(nèi)存中
下一步更換密碼
ru1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
ru1(config)#line console 0
ru1(config-line)#pass admin
ru1(config-line)#login
ru1(config-line)#exit
ru1(config)#line vty 0 4
ru1(config-line)#pass admin
ru1(config-line)#login
ru1(config-line)#exit
ru1(config)#enable pass admin
ru1(config)#enable secret admin
ru1(config)#service password-encryption
比如說我們將密碼修改為admin 實驗環(huán)境下 只采用這一個密碼
下一步 更改寄存器值 恢復(fù)到正常的啟動次序
ru1(config)#config-register 0x2102
下一步 保存配置到NVRAM里面
ru1(config)#exit
%SYS-5-CONFIG_I: Configured from console by console
ru1#copy run start
Destination filename [startup-config]?
Building configuration...
[OK]
ru1#
重啟一下
ru1#rel
Proceed with reload? [confirm]
2 修改寄存器值改變啟動次序
rommon 1 > confreg 0x2142
3 在mini IOS下重啟路由
rommon 2 > reset
System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
Copyright (c) 2000 by cisco Systems, Inc.
cisco 2621 (MPC860) processor (revision 0x200) with 60416K/5120K bytes of memory
Self decompressing the image :
########################################################################## [OK]
Restricted Rights Legend
Processor board ID JAD05190MTZ (4292891495)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
2 FastEthernet/IEEE 802.3 interface(s)
2 Low-speed serial(sync/async) network interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
--- System Configuration Dialog ---
Continue with configuration dialog? [yes/no]: n
Press RETURN to get started!
Router>
看這里進入系統(tǒng)之后 直接就進入了用戶模式 沒要密碼
Router>en
Router#copy start run
Destination filename [running-config]?
552 bytes copied in 0.416 secs (1326 bytes/sec)
ru1#
我們 輸入enable 進入特權(quán)模式 輸入命令 copy start run 從NVRAM 里面調(diào)用配置到內(nèi)存中
下一步更換密碼
ru1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
ru1(config)#line console 0
ru1(config-line)#pass admin
ru1(config-line)#login
ru1(config-line)#exit
ru1(config)#line vty 0 4
ru1(config-line)#pass admin
ru1(config-line)#login
ru1(config-line)#exit
ru1(config)#enable pass admin
ru1(config)#enable secret admin
ru1(config)#service password-encryption
比如說我們將密碼修改為admin 實驗環(huán)境下 只采用這一個密碼
下一步 更改寄存器值 恢復(fù)到正常的啟動次序
ru1(config)#config-register 0x2102
下一步 保存配置到NVRAM里面
ru1(config)#exit
%SYS-5-CONFIG_I: Configured from console by console
ru1#copy run start
Destination filename [startup-config]?
Building configuration...
[OK]
ru1#
重啟一下
ru1#rel
Proceed with reload? [confirm]
??????? [OK]
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