This is a new article for the blog serie called "RARE Day One". Today we will explore one of freeRouter feature that is used a lot in Service Provider trusted environment" TFTP server

Overview

I'm not sure if this is still the case now, but back in 1999, I had the opportunity to managed multiple VPNs at a very huge French Service Provider. I'm saying huge as in this type of MPLS muti-service core network, you could have hundreds of VRF in the same PE router connecting a myriads of CPE via X25 (XOT), frame-relay and ATM PVC at best. In that context, some companies could have several thousands of routers in their VPNs and it was not common to follow a high pace deployment which was at ~10 CPEs per day for a new customer VPN implementation. So one of my favorite CLI command was:

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That was for the anecdote, but recently I attempted to upgrade my OpenWRT wifi router from 18.06.02 to the latest code train: 19.07.4. As a lazy as IamI'am, I just sticked with OpenWRT web upgrade via LuCI. Not sure if I was right, why and how but the upgrade failed and my wifi router got "bricked". 

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