Randomly, during bootup of Cisco hardware (IOS), error messages similar to these are displayed:
%Error opening tftp://255.255.255.255/network-confg (Socket error)
%Error opening tftp://255.255.255.255/cisconet.cfg (Socket error)
%Error opening tftp://255.255.255.255/hostname-confg (Socket error)
%Error opening tftp://255.255.255.255/hostname.cfg (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.
In order to disable this feature, issue 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