![]() I guess I won't be forgetting about hosts.allow next time. ![]() This is one case where ping will work but TFTP will fail, even with no firewall running. The routers that were one hop away used that allowed network to get back to the TFTP server (via static routes on the cable router), but the one router directly connected was on a network not listed in hosts.allow (and I have ALL:ALL in ny). In my case, I found that my hosts.allow file on the TFTP server box was only configured to allow the network with the cable router and no other networks. One of my routers was directly connected to the network with the raspberry pi and it was NOT connecting! It could ping the IP address just fine, but no TFTP. Two of my routers were each one hop away from the TFTP server (a raspberry pi). I had to enter static routes on the dlink to get packets back to the cisco routers. Additionally, there are excellent TFTP server packages offered for sale. Please notice, booting a Cisco router from TFTP not used only for this. I have them all connected to my cable internet router (dlink dgl-4500). There are many freeware TFTP servers on the internet. You can use your routers flash to store configuration files and make them available for download via TFTP as well. First, make sure that the router is connected to a TFTP Server, also a valid ISO. I have 3 routers (two 1841's and one 2801) and 3 switches (all 2950's) for my CCNA lab at home. This is a step-by-step approach to copy a configuration from a router to a TFTP server, and back to another router.
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