ルータが自動的にTFTPサーバを探しにいく
Problem: Service Configuration Error Messages
Occasionally, during bootup of Cisco hardware through Cisco IOS software, error messages similar to these are displayed:
%Error opening tftp://255.255.255.255/network-confg (Socket error)
These error messages are related to the default service configuration option built into Cisco IOS software, which attempts to access the service configuration files from a network Trivial File Transfer Protocol (TFTP) server.
Solution
To disable this feature, execute the no service config global command.
Router#config terminal
Enter configuration commands, one per line.
Router(config)#no service config
Router(config)#exit
Router#copy running-config startup-config