After modifying a Cisco (router/switch) equipment's configuration it's possible that the configuration service of the equipment activates. This services will generate TFTP (Trivial File Transfer Protocol) broadcast requests on all interfaces of the equipment looking for a configuration on the network. It generates the following log message on the equipment:
- %Error opening tftp://255.255.255.255/network-confg - %Error opening tftp://255.255.255.255/cisconet.cfg - %Error opening tftp://255.255.255.255/3620-confg - %Error opening tftp://255.255.255.255/3620.cfg This service can be annoying if you have a TFTP server running on your network as it will try to reply to those requests ; moreover, it slows down equipment's boot time as it will wait for requests to be replied or time out to finish booting up. To disable that service use the following commands:
Router#config terminal Router(config)#no service config Router(config)#exit Router#copy running-config startup-config Source : Cisco official related page
1 Comment
1/2/2020 09:12:28
I know that I will have a hard time understanding this matter because I am not an IT expert at all, But it was a good thing you made this one and gave us a preview on how to troubleshoot a problem like this. Though I only have a limited knowledge about this matter, I am still thankful that you have shared it to us! It may be pretty complicated, but if you will allot time to understand it even more, I am pretty sure that you will get the gist of the post. All you need to do is to make an effort for it and it will happen!
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