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2811路由器密码的问题,恢复不了,进入不了rommon模式

aaronpe
Level 1
Level 1
路由器忘记特权密码,想要进入Rommon模式进行修改密码,可是按住ctrl+break却进不了Rommon模式(用很多电脑试过,都按组合键都进入不了),估计被锁了吧,请问怎么恢复出厂设置,谢谢!
21 条回复21

wuleihen
Spotlight
Spotlight
你重启路由器,注意观察开机的屏幕当出现这界面的时候再按break,注意:不要早按,只能在这个指令出现后再按才有效,
Image text-base: 0x80008088, data-base: 0x8107A5D0

pxhen
Spotlight
Spotlight
本帖最后由 pxhen 于 2018-2-5 10:52 编辑
撸主应该在51CTO上发过帖子,我也回复过
不能中断的,请排除以下几点
1:用USB转COM口的线,有些不支持中断功能,或者说兼容不好,建议换电脑自带COM口的机器试试,进行排除,也建议排除一下配置线是否有问题;
2:路由器关闭了密码恢复功能,也就是屏蔽了CTRL + BREAK中断功能,这个可以在开机LOGO那里能看到提示信息,如果自己看不懂,可以截图上来;
3:路由器console电路故障,导致能显示,无法输入命令,
4:开机,看到内存容量信息后,立刻,马上,用组合键中断操作,过早或者过完,都可能不行。

jingjian
Spotlight
Spotlight
把CF卡拔出来,重启设备,设备因为找不到IOS软件,所以会自动进入Rommon模式,进入rommon模式后,confreg 0x2142 ,不加载配置。

cruiseluo
Spotlight
Spotlight
1、先用串口线连接电脑和路由器,串口线的相关设置能保证电脑可以看到路由器。
2、关闭路由器,5秒后开启路由器,在一分钟内按键盘上的break键,不用同时按ctrl键。
3、此时就进入rommon模式了

YilinChen
Spotlight
Spotlight
arvinjing 发表于 2018-2-5 11:52
把CF卡拔出来,重启设备,设备因为找不到IOS软件,所以会自动进入Rommon模式,进入rommon模式后,confreg 0 ...

不会进不了rommon模式的,肯定有原因,这个方法,操作性高,LZ尝试一下吧。

青沙流萤
Level 7
Level 7
修改一下ctrl+break映射键,比如改为ctrl+b然后再试试

wuleihen
Spotlight
Spotlight
YilinChen 发表于 2018-2-5 13:12
不会进不了rommon模式的,肯定有原因,这个方法,操作性高,LZ尝试一下吧。

进不了rommon模式,估计是被禁了,拔卡是一种方法,也可以通过其他方式解决

aaronpe
Level 1
Level 1
pxhen 发表于 2018-2-5 10:51
撸主应该在51CTO上发过帖子,我也回复过
不能中断的,请排除以下几点

帮忙看看,这个信息显示是否被锁定
,始终都进不去ROMMON模式
System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2006 by cisco Systems, Inc.
Initializing memory for ECC
.
c2811 platform with 262144 Kbytes of main memory
Main memory is configured to 64 bit mode with ECC enabled
Upgrade ROMMON initialized
program load complete, entry point: 0x8000f000, size: 0xcb80
program load complete, entry point: 0x8000f000, size: 0xcb80
program load complete, entry point: 0x8000f000, size: 0xe37164
Self decompressing the image : ####################################################################################################################################################### [OK]
Smart Init is enabled
smart init is sizing iomem
ID MEMORY_REQ TYPE
0003E7 0X003DA000 C2811 Mainboard
0X000021B8 Onboard USB
0X002C29F0 public buffer pools
0X00211000 public particle pools
TOTAL: 0X008AFBA8
If any of the above Memory Requirements are
"UNKNOWN", you may be using an unsupported
configuration or there is a software problem and
system operation may be compromised.
Rounded IOMEM up to: 10Mb.
Using 3 percent iomem. [10Mb/256Mb]
Port Statistics for unclassified packets is not turned on.
WIC slot is empty or does not support clock participate
%SYS-6-READ_BOOTFILE_SKIP: boot system flash:c2800nm-advipservicesk9-mz.123-14.T2.bin command is skipped
%SYS-6-BOOT_MESSAGES: Messages above this line are from the boot loader.
program load complete, entry point: 0x8000f000, size: 0xe37164
Self decompressing the image : ####################################################################################################################################################### [OK]
Smart Init is enabled
smart init is sizing iomem
ID MEMORY_REQ TYPE
0003E7 0X003DA000 C2811 Mainboard
0X000021B8 Onboard USB
0X002C29F0 public buffer pools
0X00211000 public particle pools
TOTAL: 0X008AFBA8
If any of the above Memory Requirements are
"UNKNOWN", you may be using an unsupported
configuration or there is a software problem and
system operation may be compromised.
Rounded IOMEM up to: 10Mb.
Using 3 percent iomem. [10Mb/256Mb]
Restricted Rights Legend
Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.
cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706
Cisco IOS Software, 2800 Software (C2800NM-IPBASE-M), Version 12.4(3g), RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Mon 06-Nov-06 02:36 by alnguyen
Image text-base: 0x400A1994, data-base: 0x41540000
Port Statistics for unclassified packets is not turned on.
Cisco 2811 (revision 49.46) with 251904K/10240K bytes of memory.
Processor board ID FHK1117F1HU
2 FastEthernet interfaces
2 Serial(sync/async) interfaces
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
62720K bytes of ATA CompactFlash (Read/Write)
WIC slot is empty or does not support clock participate
no ip ips deny-action ips-interface

aaronpe
Level 1
Level 1
arvinjing 发表于 2018-2-5 11:52
把CF卡拔出来,重启设备,设备因为找不到IOS软件,所以会自动进入Rommon模式,进入rommon模式后,confreg 0 ...

谢谢,我试试呢

aaronpe
Level 1
Level 1
wuleihen 发表于 2018-2-5 10:44
你重启路由器,注意观察开机的屏幕当出现这界面的时候再按break,注意:不要早按,只能在这个指令出现后再 ...

还是不行,我看见了那个代码以后,狂按也不行。。

aaronpe
Level 1
Level 1
青沙流萤 发表于 2018-2-5 15:07
修改一下ctrl+break映射键,比如改为ctrl+b然后再试试

怎么修改呢?

Ning Zhang
Cisco Employee
Cisco Employee
拔掉flash 卡是最直接的办法,也最有效。

wuleihen
Spotlight
Spotlight
aaronpe 发表于 2018-2-6 16:25
还是不行,我看见了那个代码以后,狂按也不行。。

我查过你这问题,但对方的开机过程中有明显的指令显示是禁用了密码恢复功能,但你给出的命令显示却没有这提示,好奇怪,但根据你描述感觉是这问题,{:2_36:}

青沙流萤
Level 7
Level 7
aaronpe 发表于 2018-2-6 16:25
怎么修改呢?

CRT工具里有键映射编辑器,在这里面修改
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