思科路由器flash
今天给各位分享思科路由器flash的知识，其中也会对思科路由器ip地址进行解释，如果能碰巧解决你现在面临的问题，别忘了关注本站
本文内容目录一览：
- 1、思科路由器1841的FLASH卡问题
- 2、在cisco路由器导出IOS到TFTP/导入IOS到Flash出现以下错误
- 3、怎样删除思科2500 FLASH文件
- 4、cisco 2811路由器 rommon下格式化flash
- 5、CISCO路由器的DRAM大小怎么看啊？FLASH还有RAM的大小都怎么看呢？？？
- 6、误操作删掉了 思科路由器的flash IOS起不来了 TFTP服务器没有备份过IOS 有没其他解决方法?
思科路由器1841的FLASH卡问题
FLASH 卡,硬件问题,,,,这个卡好像是可以升级的(也就是换的),你拿到买设备的地方,交给他们吧
在cisco路由器导出IOS到TFTP/导入IOS到Flash出现以下错误
我现在也碰见这问题了，就是从思科路由器往电脑上通过TFTP下载IOS的时候中断，每次都是到31.9兆的时候就断，但是我win10的防火墙没有开启的。
怎样删除思科2500 FLASH文件
1、IOS映像恢复的方法及步骤
1) 连接PC的COM1口与路由器的console口，使用PC的超级终端软件访问该路由器；
2) 开启路由器的电源开关，并在30秒内按下键盘的Ctrl+break，中断路由器的正常启动以进入rom监视模式，屏幕上提示符如下：
3) 键入如下命令：
o /r 0x2101
改变路由器虚拟寄存器的默认值（0x2102）；
4) 键入重启命令：
i
路由器重启，当屏幕显示以下信息表明路由器重启完毕：
System Bootstrap, Version 5.2(8a), RELEASE SOFTWARE
Copyright (c) 1986-1995 by cisco Systems
2500 processor with 1024 Kbytes of main memory
…
Press RETURN to get started!
5) 路由器在虚拟寄存器的值为0x2101时自动进入rom启动模式：
router(boot)
6) 此时，将TFTP服务器上的IOS映像文件恢复至路由器flash memory中，依次键入以下命令：
router(boot)en
router(boot)#copy tftp flash
System flash directory:
No files in System flash
[0 bytes used, 4194304 available, 4194304 total]
Address or name of remote host [255.255.255.255]?192.168.18.168（IP地址已作技术处理，下同）
Source file name? igs-i-l.110-22a.bin（IOS映像文件名）
Destination file name [igs-i-l.110-22a.bin]?
Accessing file 'igs-i-l.110-22a.bin' on 192.168.18.168...
Loading igs-i-l.110-22a.bin from 192.168.18.168 (via Ethernet0): ! [OK]
Device needs erasure before copying new file
Erase flash device before writing? [confirm]
Copy 'igs-i-l.110-22a.bin' from server
as 'igs-i-l.110-22a.bin' into Flash WITH erase? [yes/no]y
Erasing device... eeeeeeeeeeeeeeee ...erased
Loading igs-i-l.110-22a.bin from 192.168.18.168 (via Ethernet0): !!!!!!!!!!!!!!!!!!!!（！表示恢复成功）
7) 还原路由器虚拟寄存器的默认值（0x2102），恢复路由器的正常启动顺序，依次键入以下命令：
router(boot)#conf t
router(boot)(config)#config-register 0x2102
router(boot)(config)#exit
router(boot)#wr
router(boot)#reload
2、IOS映像升级的方法及步骤
1) 升级之前先备份，将相关文件备份至TFTP服务器，键入如下命令：
router#copy bootflash tftp（Cisco 2500系列路由器不存在bootflash，相应的是rom）
router#copy flash tftp
router#copy startup-config tftp
2) 因为Cisco 1000,1600,2500,4000系列路由器不允许在正常工作状态下重写flash memory，所以只有进入rom（或bootflash）启动模式才能升级IOS映像，依次键入以下命令：
router#conf t
router(config)#config-register 0x2101
router(config)#exit
router#wr
router#reload
3) 路由器重启完毕后进入rom（或bootflash）启动模式，从TFTP服务器将新的IOS映像文件拷贝至路由器的flash memory中：
router(boot)#copy tftp flash
4) 还原路由器虚拟寄存器的默认值（0x2102），恢复路由器的正常启动顺序，依次键入以下命令：
router(boot)#conf t
router(boot)(config)#config-register 0x2102
router(boot)(config)#exit
router(boot)#wr
router(boot)#reload
cisco 2811路由器 rommon下格式化flash
用XMODEM灌IOS时，要使用XP自带的超级终端灌，用其它软件灌就可能会出现这样的问题。切身体验 格式化命令format
CISCO路由器的DRAM大小怎么看啊？FLASH还有RAM的大小都怎么看呢？？？
show version里面有一行
cisco **** processor *** with *K/*K bytes of memory
show flash:,最后有个
* bytes total（* bytes free）
误操作删掉了 思科路由器的flash IOS起不来了 TFTP服务器没有备份过IOS 有没其他解决方法?
rommon状态你试一下如下操作：
System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
C1700 platform with 16384 Kbytes of main memory
device does not contain a valid magic number
boot: cannot open "flash:"
an alternate boot helper program is not specified
(monitor variable "BOOTLDR" is not set)
and unable to determine first file in bootflash
loadprog: error - on file open
boot: cannot load "rom"
System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
C1700 platform with 16384 Kbytes of main memory
device does not contain a valid magic number
boot: cannot open "flash:"
boot: cannot determine first file name on device "flash:"
System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
C1700 platform with 16384 Kbytes of main memory
device does not contain a valid magic number
boot: cannot open "flash:"
boot: cannot determine first file name on device "flash:"
System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
C1700 platform with 16384 Kbytes of main memory
rommon 1 dir flash:
device does not contain a valid magic number
dir: cannot open device "flash:"
rommon 7 xmodem -r
Do not start the sending program yet...
Invoke this application only for disaster recovery.
Do you wish to continue? y/n [n]: y
Ready to receive file ...
Download Complete!
program load complete, entry point: 0x80008000, size: 0x2fb710
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) C1700 Software (C1700-NY-M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Mon 06-Dec-99 14:36 by phanguye
Image text-base: 0x80008088, data-base: 0x805F3B2C
cisco 1720 (MPC860) processor (revision 0x501) with 13108K/3276K bytes of memory
.
Processor board ID JAD042104HW (3447384770), with hardware revision 0000
M860 processor: part number 0, mask 32
Bridging software.
X.25 software, Version 3.0.0.
1 FastEthernet/IEEE 802.3 interface(s)
1 Serial(sync/async) network interface(s)
32K bytes of non-volatile configuration memory.
4096K bytes of processor board System flash (Read/Write)
Press RETURN to get started!
00:00:05: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
00:00:05: %LINK-3-UPDOWN: Interface Serial0, changed state to down
00:00:05: %SYS-5-CONFIG_I: Configured from memory by console
00:00:05: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) C1700 Software (C1700-NY-M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Mon 06-Dec-99 14:36 by phanguye
00:00:06: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed
state to up
00:00:06: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state
to down
00:00:07: %LINK-5-CHANGED: Interface Serial0, changed state to administratively
down
00:00:12: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed
state to down
cisco1720show flash:
device does not contain a valid magic number
dir: cannot open device "flash:"
cisco1720enable
cisco1720#copy tftp flash
cisco1720#reload
关于思科路由器flash和思科路由器ip地址的文章，就是上面的全部内容了，不知道有没有是您需要的内容。如果可以帮到您，记得收藏本站
