This document provides explanations of service configuration errors
encountered during initial hardware bootup when you run Cisco IOS®
There are no specific requirements for this document.
This document is not restricted to specific software and hardware
The information in this document was created from the devices in a
specific lab environment. All of the devices used in this document started with
a cleared (default) configuration. If your network is live, make sure that you
understand the potential impact of any command.
Technical Tips Conventions for more information on document
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 opening tftp://255.255.255.255/cisconet.cfg (Socket
%Error opening tftp://255.255.255.255/3620-confg (Socket
%Error opening tftp://255.255.255.255/3620.cfg (Socket
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)
In order to disable this feature, issue the no service
config global command.
Enter configuration commands, one per line.
Router(config)#no service config
Router#copy running-config startup-config
These error messages no longer appear at the next bootup of the