思科CISCO防火墻ASA5510重置密碼

ASA 5510密碼恢復：

1.重啟防火墻出現

Use BREAK or ESC to interrupt boot.

Use SPACE to begin boot immediately.

2.進入rommon模式，然后修改寄存器

rommon #1> confreg

Current Configuration Register: 0x00000001-------------當前asa的寄存器值

Configuration Summary:

boot default image from Flash

Do you wish to change this configuration y/n [n]: y---------------是否改變現有配置

enable boot to ROMMON prompt y/n [n]: y

select specific Flash image index y/n [n]: n

disable system configuration y/n [n]: y --------重要----------是否關閉系統當前的配置

go to ROMMON prompt if netboot fails y/n [n]: y

enable passing NVRAM file specs in auto-boot mode y/n [n]: y

disable display of BREAK or ESC key prompt during auto-boot y/n [n]: n

Current Configuration Register: 0x00102040---------------------修改后的寄存器值

Configuration Summary:

boot ROMMON

ignore system configuration

load ROMMON if netboot fails

pass NVRAM file specs in auto-bootloader mode

Update Config Register (0x102040) in NVRAM…

3.重啟asa

rommon #2> boot

4.這時可修改密碼

ciscoasa>enable

Password:(密碼為空)

ciscoasa#configure terminal

ciscoasa(config)#enable password XXX

5.copy 原有配置

ciscoasa(config)# copy startup-config running-config

6.寄存器立刻改回原值，然后重啟。

Rack46ASA2(config)# config-register 0x01

7.重啟

ciscoasa#reload