当ASA镜像文件丢失时,系统恢复步骤 rommon #0> address x.x.x.x rommon #1> server x.x.x.x rommon #2> gateway x.x.x.x rommon #2> interface GigabitEthernet0/1 GigabitEthernet0/1 MAC Address: 000f.f775.4b54 rommon #3> file asa821-k8.bin 查看:rommon #2> set 开始下载:rommon #5> tftpdnld 当ASA密码丢失时,密码恢复步骤: 1、使用BREAK or ESC进入ROMMON模式 2、修改confreg rommon #0> confreg Current Configuration Register: 0x00000001 Configuration Summary: boot default image from Flash Do you wish to change this configuration? y/n [n]: y //修改寄存器值 enable boot to ROMMON prompt? y/n [n]: enable TFTP netboot? y/n [n]: enable Flash boot? y/n [n]: ** specific Flash image index? y/n [n]: disable system configuration? y/n [n]: y //不加载配置 go to ROMMON prompt if netboot fails? y/n [n]: enable passing NVRAM file specs in auto-boot mode? y/n [n]: disable display of BREAK or ESC key prompt during auto-boot? y/n [n]: Current Configuration Register: 0x00000040 3、重启设备rommon #1> boot 4、之前的初始配置覆盖当前配置 ciscoasa# copy startup-config running-config 5、修改密码 ciscoasa# config terminal ciscoasa(config)# passwd C1$c0123 ciscoasa(config)# enable password C1$c0123 5、修改寄存器 ciscoasa(config)# config-register 0x1 6、保存 ciscoasa#write
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