3Com路由器启动文件丢失后的恢复方法 (2)

Server address:192.41.50.1

Subnet Mask:255.255.255.0

完毕输q退回到>提示符下.

B.输命令fl boot.68k出现以下提示按下划线操作

>fl boot68k

FORMAT Flash and download Y/N?y

Formatting.......done

1817088 bytes available

Trying AUI port trying 10BaseT port...

carrier detected

tftp load of file form server 192.41.50.1

Beginning transfer 1870

File loaded at 40A36C size E9A04

writing file /primary/boot.68k

Image recovery sepuence completed

>

C.输命令rs重新启动路由器即恢复正常

(2)有时经过第(1)种方法,但路由器启动过程中提示EEPROM check test fails,此时须初始化EEPROM,重新下载启动文件并重设MAC地址.此方法要求安前面所述完整配置BOOTP服务器和TFTP服务器。

A.关闭路由器电源,在左面板上课看到三个向下的DLP开关,用非导电笔状物将两边的DLP开关拨向上,注意中间的一个不要动,此时打开路由器电源。

B.路由器在启动过程中自动初始化EEPROM,格式化flash memory,并下载启动文件.这一系列过程的进行需TFTP服务器和BOOTP服务器的正确配置,当Power/FAULT指示灯由黄色变为绿色并闪烁时,表示已成功结束.整个过程主要提示如下:

........

Erasing EEPORM ...Verifying...Complete.

Creating default Tage...Compete.

Formatting ...dine.

187088 bytes available.

Inbalid MAC address in EEPROM - using 08-00-02-00-58-84

Trying AUI port ...

No Carrier on AUI port trying 10BaseT port ...carrier detected

Trying BOOTP ...completed

tftp load of the from server 192.41.50.1

Beginning transfer 1870

File loader at 40A36C size E9A04

Writing file /primary/boot.68k

Write completed

Image recovery sequence completed

C.关闭路由器电源,将左面板的DIP开关拔至原始位置(三个均朝下),然后打开路由器电源开关.路由器启动过程中使用缺省的MAC地址:08002005884,须在引导完毕后恢复原来的MAC地址.在NetLogin:提示下以root注册过程以下:

NetLogin:root

password:

Welcome to the 3Com NETBuilder

[1]NETBuilder # mon

WARNING: Monitor mode halts normal operation.

Confirm(Y/N)?y

Abort PC=0x5CF8DA

>xd

>ma

Current MAC address in canonical form [CR=no MAC Address:]0800021b347c

Station Address - 0800021B347C

New MAC address:0800021B347C

Enter old feature flags [CR=no feature flags]:

NO flags have been entered.

Enter new feature flags [CR=no featuee flags]:

No flags have been entered.

Device is no upgraded.

>rs

D.路由器重新启动,至此已全部恢复正常。

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