2. Password Recovery (ÀÀ±Þ º¹±¸)
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Command log
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¶ó¿ìÅÍÀÇ root password¸¦ ÀÒ¾î ¹ö·È°Å³ª ȤÀº
routerÀÇ OS°¡ Á¤»óµ¿ÀÛ¸¦ ÇÏÁö
¾ÊÀ» °æ¿ì ÀÀ±Þº¹±¸ mode·Î bootingÇÑ´Ù. |
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BOOT LOADER ÁÖ±â´É)
1. root password recovery/change
2. s/w downloading booter mode·Î
µé¾î°¡±â>
systemÀ»
reset(power reset ȤÀº s/w reset ½ÃŲ ÈÄ
ctrl-C, ctrl-X¸¦ ¹ø°¥¾Æ°¡¸ç ¹Ýº¹ ÀÔ·ÂÇϸé
prompt°¡ BOOT #·Î ¶³¾îÁø´Ù.
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password
È®ÀÎ(º¸±â) |
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BOOT#
Interface Ethernet0, changed state to UP
BOOT# show password
password = router
BOOT#
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password ¼öÁ¤ (root
password¸¦ router¿¡¼ abcd
·Î ¹Ù²Ü°æ¿ì) |
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BOOT# config
BOOT(config)#
passwd abcd
abcd
password changed
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¡Ø Âü°í) OS command¿¡¼
root password º¯°æ ¸í·É¾î |
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(root passwd¸¦
abcd¿¡¼ router·Î ¹Ù²Ü
°æ¿ì)
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router(config)# show user
|
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Login Name |
Password |
User Level |
Timeout |
-------------------------------------------------------------------------------------------------------- |
root |
abcd |
ADMIN |
0 |
router#
config
router(config)# user change root abcd router
router(config)# show user
Login Name |
Password |
User Level |
Timeout |
-------------------------------------------------------------------------------------------------------- |
root |
router |
ADMIN |
0 |
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PCȤÀº
UNIX system¿¡¼ ftp¸¦ ÅëÇØ
OS¸¦ upgradeÇÑ´Ù.
|
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ftp client : 192.71.192.2 (PC)
ftp server: 192.71.192.1 (router) |
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router IP setting
(ÁÖÀÇ: BOOTER´Â router software¿¡¼
¼³Á¤µÈ |
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setting°ªÀ» ÂüÁ¶ÇÏÁö ¾ÊÀ½)
BOOT#
config
BOOT(config)#
address
192.71.192.1 255.255.255.192
BOOT(config)# end
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router setting È®ÀÎ |
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BOOT# show
interface
Interface Configuration : ether0.0
IP address : 192.71.192.1 netmask :
255.255.255.192 mtu = 1500
Ethernet Address : 00 02 a4 99 99 01
Ethernet mode : FULL-DUPLEX
Operating speed : 100 Mbps
Line status : FULL DUPLEX
Operation is UP |
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ÀÌÇÏ OS mode¿¡¼ÀÇ
ftp/tftp¸¦ ÀÌ¿ëÇÑ down loading¹æ¹ý°ú µ¿ÀÏ
|
¡¡2. Password
recovery & log in BOOT Loader with Boot Loader Version 2.2.5.
-
boot
loader version 2.0 ÀÌÈÄ version Àº boot login ½Ã¿¡µµ login ID ¹× password ¸¦
¹°¾î º¸°³ µÇ¾î ÀÖ½À´Ï´Ù.
-
À̶§ root
password¸¦ ºÐ½Ç ÇßÀ» °æ¿ì guest account ·Î login À» ÇÒ ¼ö ÀÖ½À´Ï´Ù. À̶§ÀÇ password ¿ª½Ã
guest ÀÔ´Ï´Ù.
-
ÁÖÀÇ ÇÏ½Ç Á¡Àº
guest account ·Î login ÇÑ ÈÄ password ¸¦ ¹Ù²Ü °æ¿ì ÀåºñÀÇ ¸ðµç ¼³Á¤Àº ÃʱâÈ µÇ¾î ¹ö¸®´Ï
½ÅÁßÇÏ°Ô ÇϽñ⠹ٶø´Ï´Ù.
-
guest
account account ·Î log in ÈÄ ¼öÁ¤ÇÑ password ´Â ´ÙÀ½ login ½ÃºÎÅÍ root password
·Î Àû¿ë µË´Ï´Ù.
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step
command
1
BOOT_login:
Interface Ethernet0, changed state to
DOWN
BOOT_login:
guest
BOOT_password:
BOOT> config
BOOT(config)>
password
router router
If you change the password, your configarion will be erased.
Are you sure you want to continue
(y/n)? y
Erasing configuration....done
Password change completed ! |