保存路由器当前配置文件到TFTP服务器

　　Freebsd% touch /tftpboot/router1-confg

　　Freebsd% chmod 666 /tftpboot/router1-confg

　　Freebsd% telnet Router1

　　Trying 172.25.1.5... Connected to Router1. Escape character is '^]'.

　　User Access Verification

　　Password:

　　Router1>enable

　　Password:

　　Router1#copy running-config tftp://172.25.1.1/rou Address or name of remote host [172.25.1.1]? !!! 9640 bytes copied in 3.956 secs (2437 bytes/sec)

　　Router1#

　　注释确保TFTP服务器上的目录和文件可写