Cisco ASA防火墙恢复至初始状态

ASA 防火墙flash 被删 防火墙不断启动 Use BREAK or ESC to interrupt boot. Use SPACE to begin boot immediately. 按下ESC进入监控模式 监控模式下的显示和交换机路由器没有什么区别。命令格式也大同小异只要大家变通一下就不难恢复。 rommon #1> ？ Variables: Use "sync" to store in NVRAM ADDRESS= local IP address CONFIG= config file path/name GATEWAY= gateway IP address IMAGE= image file path/name LINKTIMEOUT= Link UP timeout (seconds) PKTTIMEOUT= packet timeout (seconds) PORT= ethernet interface port RETRY= Packet Retry Count (Ping/TFTP) SERVER= server IP address VLAN= enable/disable DOT1Q tagging on the selected port rommon #2> ADDRESS=192.168.0.2 （因为是TFFP上传，所以防火墙设置为客户机） rommon #3> GATEWAY=192.168.0.1 （网关） rommon #4> IMAGE=asa802-k8.bin （导入IOS的名称） rommon #5> SERVER=192.168.0.1 （服务器IP，也就是你的PC） rommon #6> sync （保存） Updating NVRAM Parameters... rommon #7> ping 192.168.0.1 Sending 20, 100-byte ICMP Echoes to 192.168.0.1, timeout is 4 seconds: ?!!!!!!!!!!!!!!!!!!! Success rate is 95 percent (19/20) 确认线路是否连通，开启TFTP软件 （这里说明下我测试是ASA5505 所以接的E0/0口。不知道设备该接什么口可以用set看“PORT=Ethernet0/0”） rommon #8> tftpdnld （上传） ROMMON Variable Settings: ADDRESS=192.168.0.2 SERVER=192.168.0.1 GATEWAY=192.168.0.1 PORT=Ethernet0/0 VLAN=untagged IMAGE=asa802-k8.bin CONFIG= LINKTIMEOUT=20 PKTTIMEOUT=4 RETRY=20 tftp asa802-k8.bin@192.168.0.1 via 192.168.0.1 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 导入后设备重启，现在有了IOS 能进去 Type help or '?' for a list of available commands. ciscoasa> en 但现在IOS也没有装入设备，而是从tftp引导启动设备，断开TFTP服务器就会从新进入监控模式。这一点当设备启动完毕后可以用show version命令看到： System image file is "tftp://192.168.0.1/asa802-k8.bin" 现在需要把IOS存入设备，但是现在防火墙和PC已经不能通信 ciscoasa# ping 192.168.0.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.0.1, timeout is 2 seconds: No route to host 192.168.0.1 Success rate is 0 percent (0/1) 因为刚才是在监控模式下，现在需要配置让PC和防火墙从新通信（具体型号具体设置，下面已我手上的5505为例） interface Vlan1 nameif inside security-level 100 ip address 192.168.1.1 255.255.255.0 ! interface Vlan2 nameif outside security-level 0 ip address 192.168.0.2 255.255.255.0 ! interface Ethernet0/0 switchport access vlan 2 现在测试 ciscoasa# ping 192.168.0.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms 已经能通信，下面拷贝IOS和ASDM存入设备 ciscoasa# copy tftp://192.168.0.1/asa802-k8.bin disk0:/asa802-k8.bin Address or name of remote host [192.168.0.1]? Source filename [asa802-k8.bin]? Destination filename [asa802-k8.bin]? Accessing tftp://192.168.0.1/asa802-k8.bin. ... !!!!!!!!!!!!!!!!!!! 因为删除的是flash 现在还需要导入ASDM （注意ASDM和IOS的兼容，不兼容如下图） ciscoasa# copy tftp://192.168.0.1/asdm-602.bin disk0://asdm-602.bin Address or name of remote host [192.168.0.1]? Source filename [asdm-602.bin]? Destination filename [asdm-602.bin]? Accessing tftp://192.168.0.1/asdm-602.bin.. ... !!!!!!!!!!!!!!!!!!! 现在可以看见IOS以后在设备上 ciscoasa# show version Cisco Adaptive Security Appliance Software Version 8.2(1) Compiled on Tue 05-May-09 22:45 by builders System image file is "disk0:/asa821-k8.bin" Config file at boot was "startup-config" ciscoasa# show flash: --#-- --length-- -----date/time------ path 3 4096 Aug 26 2009 17:41:50 log 10 4096 Aug 26 2009 17:41:56 crypto_archive 11 4096 Aug 26 2009 17:59:06 coredumpinfo 12 43 Aug 27 2009 09:13:02 coredumpinfo/coredump.cfg 78 16275456 Aug 26 2009 18:07:50 asa802-k8.bin 80 7598456 Aug 27 2009 09:05:54 asdm-602.bin 设置启动文件 ciscoasa (config)# boot system disk0:/asa802-k8.bin 设置IOS ciscoasa (config)# asdm image disk0:/asdm602.bin 设置ASDM ciscoasa (config)# reload 重新启动，配置生效 备份上面dir的文件 ciscoasa (config)# copy disk0:/asa802-k8.bin tftp://192.168.1.1/asa802-k8.bin ciscoasa (config)# copy disk0:/asdm602.bin tftp://192.168.1.1/asdm602.bin