不用路由器了，怎么恢复用之前的设置？

拔掉电源，等1分钟，然后插上，再拿牙签查到猫后面的reset孔里，一直按着，直到前面的灯，全熄了又闪，为止、

换猫.请电信(惑网通)的换猫.

猫的问题。

一般情况下，你可以使用存放于路由器NVRAM中的startup-config（起始配置），来替换running-config（当前配置）。 要这么做，你需要执行下述命令：

configure replace nvram:startup-config

不过，最后一个参数可以是任何一个有效的config文件，只要它是可接受的Cisco IOS URL格式。 比方说，这个config文件的实际存放地，可以是在某台TFTP, FTP, HTTP, RCP或者SCP服务器上。 这种情况下，命令可能就会变成下述这样：

configure replace t ftp://192.168.1.107/config-bu

附件Ａ提供了一个使用Configure replace命令的基本示例。 首先，我关闭了我的FastEthernet4接口，然后我使用了configure replace nvram:startup-config命令，来用我的起始设置（startup-configuration）替换掉当前设置（running-configuration）。 虽然这是一个明显简化的示例，但是还是展现了命令的工作方式。

Configure replace命令是非常有用的——它常常能最小化停工时间，又能让你恢复到变化之前的起点。 附件Ａ：

! showing the current configuration for the Fa4 interface R1-871W#sh run int fa4 Building configuration... Current configuration : 71 bytes ! interface FastEthernet4 no ip address duplex auto speed auto end ! shutting down the Fa4 interface R1-871W#conf t Enter configuration commands, one per line. End with CNTL/Z. R1-871W(config)# int fa4 R1-871W(config-if)# shutdown R1-871W(config-if)#^Z R1-871W# *Aug 10 13:06:43.269: %LINK-5-CHANGED: Interface FastEthernet4, changed state to administratively down *Aug 10 13:06:43.273: %SYS-5-CONFIG_I: Configured from console by console *Aug 10 13:06:44.269: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet4, changed state to down R1-871W# ! verifying that the Fa4 interface is shutdown R1-871W#sh run int fa4 Building configuration... Current configuration : 81 bytes ! interface FastEthernet4 no ip address shutdown duplex auto speed auto end ! replacing the current config with the saved config R1-871W# configure replace nvram:startup-config This will apply all necessary additions and deletions to replace the current running configuration with the contents of the specified configuration file, which is assumed to be a complete configuration, not a partial configuration. Enter Y if you are sure you want to proceed. ? [no]: y *Aug 10 13:06:55.189: Rollback:Acquired Configuration lock. Total number of passes: 1 Rollback Done ! notice the "rollback done" message and how the interface immediately started coming up (below) R1-871W# *Aug 10 13:06:59.245: %LINK-3-UPDOWN: Interface FastEthernet4, changed state to up *Aug 10 13:07:00.245: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet4, changed state to up R1-871W# ! verifying that the interface is now set to up R1-871W# sh run int fa4 Building configuration... Current configuration : 71 bytes ! interface FastEthernet4 no ip address duplex auto speed auto end