[飛鳥]

我找到回覆密碼的方法

一般來說，會打密碼三次不對，會像這樣

2600. Even if you are not using a Cisco 2600, this example will be almost exactly what you experience on
your product.
Router>enable
Password:
Password:
Password:
% Bad secrets
Router>

輸入三次密碼不對後，現在的模式是可以用show version指令的

Router>show version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600−IS−M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
Copyright (c) 1986−1999 by cisco Systems, Inc.
Compiled Tue 07−Dec−99 02:21 by phanguye
Image text−base: 0x80008088, data−base: 0x80C524F8
ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Router uptime is 3 minutes
System returned to ROM by abort at PC 0x802D0B60
System image file is "flash:c2600−is−mz.120−7.T"
cisco 2611 (MPC860) processor (revision 0x202) with 26624K/6144K bytes of memory.
Processor board ID JAB031202NK (3878188963)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
2 Ethernet/IEEE 802.3 interface(s)
2 Serial(sync/async) network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non−volatile configuration memory.
8192K bytes of processor board System flash partition 1 (Read/Write)
8192K bytes of processor board System flash partition 2 (Read/Write)
Configuration register is 0x2102
Router>

注意最後的Configuration register is 0x2102
那設定檔位置為0x2102

那我們要改他的設定檔載入位置

開啟路由器的電源開關，並在30秒內按下鍵盤的Ctrl+break，中斷路由器的正常啟動以進入rom監視模式，屏幕上提示符如下：

*** System received an abort due to Break Key ***
signal= 0x3, code= 0x500, context= 0x813ac158
PC = 0x802d0b60, Vector = 0x500, SP = 0x80006030
rommon 1 >

這個模式是作修復用的
輸入下面設定
[IMG]rommon 1 > confreg 0x2142
You must reset or power cycle for new config to take effect
rommon 2 > reset[/IMG]

把下一次的載入位置改成0x2142

再輸入reset重新載入

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 32768 Kbytes of main memory
program load complete, entry point: 0x80008000, size: 0x6fdb4c
Self decompressing the image : ###############################
##############################################################
##############################################################
##############################################################
############################### [OK]
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 Internetwork Operating System Software
IOS (tm) C2600 Software (C2600−IS−M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
Copyright (c) 1986−1999 by cisco Systems, Inc.
Compiled Tue 07−Dec−99 02:21 by phanguye
Image text−base: 0x80008088, data−base: 0x80C524F8
cisco 2611 (MPC860) processor (revision 0x202) with 26624K/6144K bytes of memory.
Processor board ID JAB031202NK (3878188963)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
2 Ethernet/IEEE 802.3 interface(s)
2 Serial(sync/async) network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non−volatile configuration memory.
8192K bytes of processor board System flash partition 1 (Read/Write)
8192K bytes of processor board System flash partition 2 (Read/Write)
−−− System Configuration Dialog −−−
Would you like to enter the initial configuration dialog? [yes/no]:

到這邊會問你要不要使用快速設定精靈，你打no，我們將不進入

進入進階模式，輸入enable

Router>
Router>enable

現在沒有密碼的狀況，所以不用密碼就可以進進階模式
現在載之正常的執行時的設定，把

Router#copy startup−config running−config
Destination filename [running−config]?
1324 bytes copied in 2.35 secs (662 bytes/sec)

我們再改成我們想要的密碼

Router#
00:01:24: %LINEPROTO−5−UPDOWN: Line protocol on Interface BRI0/0:1, changed state to down
00:01:24: %LINEPROTO−5−UPDOWN: Line protocol on Interface BRI0/0:2, changed state to down
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#enable secret cisco

上面的cisco就是我現在要設的密碼

改完記得存檔就好

原廠恢復密碼文章
http://www.cisco.com/warp/public/474/pswdrec_1700.shtml