cisco ios 升级方法和TFTP的用法 cisco ap ios升级

cisco ios 升级方法和TFTP的用法

升级方法:

cisco ios 升级方法和TFTP的用法 cisco ap ios升级
现总结归纳出CISCO路由器IOS映像升级的几种方法,供广大网络爱好者或同仁参考。在介绍CISCO路由器IOS升级方法前,有必要对Cisco路由器的存储器的相关知识作以简单介绍。路由器与计算机相似,它也有内存和操作系统。在Cisco路由器中,其操作系统叫做互连网操作系统(Internetwork Operating System),常简称为IOS.路由器的存储器主要有:

ROM:只读存储器包含路由器正在使用的IOS的一份副本;

RAM:IOS将随机访问存储器分成共享和主存。主要用来存储运行中的路由器配置和与路由协议有关的IOS数据结构;

FLASH (闪存):用来存储IOS软件映像文件,闪存是可以擦除内存,它能够用IOS的新版本覆写,IOS升级主要是闪存中的IOS映像文件进行更换。

NVRAM:非易失性随机访问存储器,用来存储系统的配置文件。

IOS升级方法一

在对能够正常启动的CISCO路由器的IOS进行升级时,比较简单。具体步骤如下:

1、寻找一种TFTP服务器软件(有CISCO公司的TFTPServer或3COM公司的3Cserver等,在升级较大IOS映象文件时,建议用3Cserver),安装在一台计算机上,将要升级的IOS映象文件拷贝到相关的目录中(例:D:),并运行TFTP服务器软件,通过菜单设置Root目录为拷贝IOS映象文件所在目录(如D:)。假设该计算机的IP地址为10.32.10.1;

2、连接路由器的console口与PC机的COM1,使用PC的超级终端软件访问路由器,将路由器的地址设为10.32.10.32(与计算机的IP地址同网段即可)。建议在进行IOS升级前将原有IOS文件备份下来,防止待升级的IOS文件存在问题不可用;

QUOTE:Router# dir flash: (查看目前IOS映象文件名,也可用Router#Show version)

Directory of flash:/

1 -rw- 5998292 C2600-I-MZ.122-11.BIN

8388608 bytes total (2390252 bytes free)

Router#copy flash tftp (备份IOS文件)

Source filename []?c2600-i-mz.122-11.bin

Address or name of remote host []? 10.32.10.1 (TFTP服务器地址)

Destination filename [c2600-i-mz.122-11.bin]?

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!



!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

5998292 bytes copied in 324.071 secs (18509 bytes/sec)

Router# 3、对路由器进行IOS升级;

QUOTE:Router#copy tftp flash

Address or name of remote host []? 10.32.10.1 (TFTP服务器地址)

Source filename []? c2600-i-mz.122-11.bin (需升级的新IOS映象文件名)

Destination filename [c2600-i-mz.122-11.bin]?

Do you want to over write? [confirm]

Accessing tftp://10.32.10.1/c2600-i-mz.122-11.bin……

Erase flash: before copying? [confirm]

Erasing the flash filesystem will remove all files! Continue? [confirm]

Erasing device…… eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ……erasedee

Erase of flash: complete

Loading c2600-i-mz.122-11.bin from 10.32.10.1 (via Ethernet0/0): !!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[OK - 5998292 bytes]

Verifying checksum…… OK (0xA0C0)

5998292 bytes copied in 318.282 secs (18846 bytes/sec)

Router# IOS升级方法二

由于升级失败后或者路由器的config-register寄存器值为0x2101时,开启路由器时、或者在开启(某些型号)Cisco路由器的电源开关后30秒内按下Ctrl+break键,中断路由器的正常启动,路由器都会进入rom监视模式,即Router(boot)>,在这种情形下,对路由器的IOS进行升级,也比较简单。首先进入特权模式下,即

QUOTE:Router(boot)>en

Router(boot)#其他升级步骤同方法一,即:执行copy tftp flash命令,对IOS进行升级。升级完成后,不要忘了修改config-register寄存器值为0x2102(恢复正常值)。

QUOTE:Router(boot)# t

Router(boot)( config)# config-register 0x2102

Router(boot)( config)#exit

Router(boot)#wr

Router(boot)#reload重启即可。

IOS升级方法三

由于不小心使用了命令erase flash或升级失败后或在开启(某些型号)Cisco路由器的电源开关后30秒内按下Ctrl+break键,中断路由器的正常启动,路由器都会进入rom监视模式,即 rommon 1>,在这种情形下,对路由器的IOS进行升级,情况要稍微复杂一点。在rommon 1>状态下,可键?请求帮助。(1为命令行序号,每执行1条命令自动加1)

QUOTE:rommon 1 > ?

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

rommon 2 >在rommon 1>状态下有两种升级IOS方法。

(一)、通过Xmodem命令(注:Xmodem与实际的modem没有任何联系 只是一个传输协议 数据是通过终端的串口和路由器的Console口灌进去的)升级IOS,具体步骤如下:

1、用Cisco原配的线缆连接路由器的console口与PC机的COM1,使用PC机的超级终端软件访问路由器,这时不需要对PC和路由器配置任何地址。

2、在这个模式下,输入Xmodem命令,即:

QUOTE:rommon 2 > xmodem -c c2600-i-mz.122-11.bin

(-c是带校验,c2600-i-mz.122-11.bin为存放在PC机上的IOS映像文件)

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 c2600-i-mz.122-11.bin …… (此时在超级终端的传送栏目=> 选择发送文件选项 => 再选择Xmodem 并指明IOS映像文件所在的路径,按发送即开始上传IOS,等待时间很长,视IOS的大小和传输速度。)

QUOTE:Erasing flash at 0x607c0000

program flash location 0x605b0000

Download Complete!

传完以后,对整个系统初始化 显示如下:

QUOTE:program load complete, entry point: 0x80008000, size: 0x5b85e0

Self decompressing the image :

[OK]

Smart Init is disabled. IOMEM set to: 10

Using iomem percentage: 10

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 12.2(11)T9, RELEASE SOFTWARE (fc1)

TAC Support: http://www.cisco.com/tac

Copyright (c) 1986-2003 by cisco Systems, Inc.

Compiled Mon 23-Jun-03 15:42 by cmong

Image text-base: 0x8000809C, data-base: 0x80A68B48

cisco 2610 (MPC860) processor (revision 0x203) with 22528K/2048K bytes of memory

Processor board ID JAD03483395 (1128032249)

M860 processor: part number 0, mask 49

Bridging software.

X.25 software, Version 3.0.0.

1 Ethernet/IEEE 802.3 interface(s)

2 Serial(sync/async) network interface(s)

32K bytes of non-volatile configuration memory.

8192K bytes of processor board System flash (Read/Write)

Press RETURN to get started!

*Mar 1 00:00:05.652: %PA-2-UNDEFPA: Undefined Port Adaptor type 100 in bay 1

*Mar 1 00:00:07.996: %LINK-3-UPDOWN: Interface Ethernet0/0, changed state to up

*Mar 1 00:00:07.996: %LINK-3-UPDOWN: Interface Serial0/0, changed state to down

*Mar 1 00:00:07.996: %LINK-3-UPDOWN: Interface Serial0/1, changed state to down

*Mar 1 00:00:09.142: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0, changed state to up

*Mar 1 00:00:09.142: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to down

*Mar 1 00:00:09.142: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to down

*Mar 1 00:00:09.458: %SYS-5-CONFIG_I: Configured from memory by console

*Mar 1 00:00:11.245: %LINK-5-CHANGED: Interface Serial0/1, changed state to administratively down

*Mar 1 00:00:12.275: %SYS-5-RESTART: System restarted ——Cisco Internetwork Operating System Software

IOS (tm) C2600 Software (C2600-I-M), Version 12.2(11)T9, RELEASE SOFTWARE (fc1)

TAC Support: http://www.cisco.com/tac

Copyright (c) 1986-2003 by cisco Systems, Inc.

Compiled Mon 23-Jun-03 15:42 by cmong

*Mar 1 00:00:12.279: %SNMP-5-COLDSTART: SNMP agent on host NE16 is undergoing a cold start

TFTP的用法

首先是下载个TFTP软件,这是前提,有了软件,运行好,做一定简单设置后便可,我这主要讲在路由里的具体操作!

第一步

进入路由器,设置一端口的IP地址,让他于TFTP服务器的ip在同一网段内!

第二步

Router#copy tftp startup-config

Address or name of remote host []? 192.168.1.181

Source filename []? cisco207-confg

Destination filename [startup-config]?

Router#copy flash tftp

Source filename []? c2500-js-l.122-13.bin

Address or name of remote host []? 192.168.1.185

Destination filename [c2500-js-l.122-13.bin]?

基本的格式是

copy 源位置 目标位置

记住格式,其他的操作都类似!

当你在flash中注入更新的IOS的后,show flash后会出现2个ios,这时候,怎么

让设备运行刚注入的新的IOS呢,这是就必需更改开机调用的顺序。

Router#show flash

System flash directory:

file length Name/status

1 222222 c2500-js-l.122-13.bin

2 333333 c2600-js-l.122-13.bin

8192K bytes of processor board System flash (Read/Write)

这时候如何设置呢?

Router#conf t

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)#boot system fl

Router(config)#boot system flash c2600-js-l.122-13.bin

Router(config)#exit

  

爱华网本文地址 » http://www.413yy.cn/a/25101011/76911.html

更多阅读

林蛙油的发泡方法和简单的食用方法 林蛙油最简单的吃法

林蛙油的发泡方法和简单的食用方法——简介林蛙油还有大量的雌性激素及可供人体吸收的多种微量元素,在清朝菜肴中誉为“八珍之首”,经常食用林蛙油可以提高人体免疫力,改善支气管及肺部疾病,尤其对女性的卵巢有很好的滋补作用。林蛙油

炸鱼不粘锅的方法和技巧 如何炸鱼不粘锅

炸鱼不粘锅的方法和技巧——简介炸鱼粘锅是很多人下厨烹饪时的苦恼。炸鱼粘锅有很多原因,但是,方法总比问题多,只要注意学习和总结,还是能找到很多不粘锅的方法和技巧的。炸鱼不粘锅的方法和技巧——方法/步骤炸鱼不粘锅的方法和技巧 1

廉颇蔺相如列传中而和以的用法1 廉颇蔺相如列传原文

“而”作为连词的用法和例句:⒈表示并列关系,所连两项在意思上不分主次、轻重,而是并列、并重的关系,可译为“和”、“及”、“又”、“并且”或不译。例如:《两小儿辩日》:“此不为远者小而近者大乎”[译]:“这不是远的小近的大吗?”⒉表

声明:《cisco ios 升级方法和TFTP的用法 cisco ap ios升级》为网友英俊潇洒分享!如侵犯到您的合法权益请联系我们删除