思科路由器恢復IOS方法及開啟多用戶Telnet權限方法
今天小編就給大家介紹下思科路由器交換機簡單的X-MODEM恢復IOS的方法以及開啟多用戶Telnet權限和Logo查看方法。
首先小編就給大家介紹思科路由交換機簡單的X-Modem恢復IOS方法：
1、用控制線連接思科路由交換機console口與計算機串口1，用帶有xmodem功能的終端軟件連接(win2000 and xp的超級終端就帶這功能)。
2、設置連接方式為串口1(如果連接的是其他串口就選擇其他串口)，速率9600，無校驗，無流控，停止位1。或者點擊默認設置也可以。
3、連接以后計算機回車出現思科路由交換機無ios的界面，一般的提示符是：switch:
4、拔掉思科路由交換機后的電源線重新啟動交換機。
5、在超級終端輸入：switch:flash_init，會出現如下提示:Initializing Flash...
6、輸入拷貝指令：switch:copy xmodem: flash:image_filename.bin，出現如下提示:Begin the Xmodem or Xmodem-1K transfer now...
7、系統提示不斷出現C這個字母就可以開始傳文件了。
8、點擊超級終端菜單：傳送---發送文件，在協議選項中選擇Xmodem或者Xmodem-1K協議，然后選擇ios的影像文件(*.bin)，開始傳送。
9、因為不能改速率，所以傳送得很慢，我的大概傳送了80分鐘左右，請耐心等待。
10、傳送完畢后提示:File "xmodem:" successfully copied to ....，switch:
11、在提示符下輸入switch:boot，啟用新的ios系統。
12、重新加電完成恢復工作。
Cisco 路由器 使用Xmodem恢復IOS方法
在沒有IOS的情況下 系統只能進入Rommon狀態，在這個狀態下只能見到如下命令：
rommon 8 > ?
alias set and display aliases command
boot boot up an external process
break set/show/clear the breakpoint
confreg configuration register utility
cont continue executing a downloaded image
context display the context of a loaded image
cookie display contents of cookie PROM in hex
dev list the device table
dir list files in file system
dis display instruction stream
dnld serial download a program module
frame print out a selected stack frame
help monitor builtin command help
history monitor command history
meminfo main memory information
repeat repeat a monitor command
reset system reset
set display the monitor variables
stack produce a stack trace
sync write monitor environment to NVRAM
sysret print out info from last system return
tftpdnld tftp image download
unalias unset an alias
unset unset a monitor variable
xmodem x/ymodem image download
在這個模式下，輸入Xmodem
rommon 9 > xmodem
會提示如下警告：
WARNING: All existing data in bootflash will be lost!
Invoke this application only for disaster recovery.
Do you wish to continue? y/n [n]: y
Ready to receive file ? …
然后在超級終端的傳送欄目=> 選擇發送選項 => 再選擇Xmodem 并指明IOS所在的路徑即開始上傳IOS,等待時間很長，視IOS的大小和傳輸速度。對于初次做IOS上傳，建議不要去修改什么傳輸速率。傳完以后 對整個系統初始化 界面如下： [nextpage]
Erasing flash at 0x603c0000
program flash location 0x602f0000
Download Complete!
program load complete, entry point: 0x80008000, size: 0x2f0074
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-I-M)， Version 11.3(6)T, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-1998 by cisco Systems, Inc.
Compiled Tue 06-Oct-98 18:42 by ccai
Image text-base: 0x80008084, data-base: 0x80554578
cisco 2610 (MPC860) processor (revision 0x202) with 12288K/4096K bytes of memory
.
Processor board ID JAB0233005Z (3677578902)
M860 processor: part number 0, mask 32
Bridging software.
X.25 software, Version 3.0.0.
1 Ethernet/IEEE 802.3 interface(s)
1 Serial network interface(s)
32K bytes of non-volatile configuration memory.
4096K bytes of processor board System flash (Read/Write)
Press RETURN to get started!
00:00:06: %LINK-3-UPDOWN: Interface Ethernet0/0, changed state to up
00:00:06: %LINK-3-UPDOWN: Interface Serial0/0, changed state to up [nextpage]
00:00:06: %SYS-5-CONFIG_I: Configured from memory by console
00:00:06: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-I-M)， Version 11.3(6)T, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-1998 by cisco Systems, Inc.
Compiled Tue 06-Oct-98 18:42 by ccai
00:00:07: %LINEPROTO-5-UPDOWN: Line protocol on
WL_bank_2610_2>Interface Ethernet0/0, changed state to up
00:00:07: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed sta
te to up
00:00:07: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed sta
te to up
2610_2>