I’ve experienced a problem in taking backup of IOS image file from new Cisco Routers.
The TFTP server pings but times out during the backup process.
Router#copy flash: tftp:
Source filename [asr1000rp1-adventerprise.03.07.04.S.152-4.S4.bin]?
Address or name of remote host ? 192.168.100.133
Destination filename [asr1000rp1-adventerprise.03.07.04.S.152-4.S4.bin]?
%Error opening tftp://126.96.36.199/asr1000rp1-adventerprise.03.07.04.S.152-4.S4.bin (Timed out)
The TFTP server works perfectly with other nodes and Cisco Switches. But the new Cisco Routers seem not to go well with it out of the box.
Apart from keeping the network very simple between the Router and the TFTP server, changing the tftp-root directory, and ensuring no firewall/anti-virus is in the path, you gotta do one more configuration on the Router.
You should provide the interface that acts as source interface for the tftp service. Similar to that of telnet.
Router(config)#ip tftp source-interface gig0/0/0
After the above command, the IOS System Image uploaded successfully.