DNS Lesson time!
Today, I was just looking into website - ideaisp.net
This site is overall pretty interesting as it’s showing various upstream links of IDEA Cellular ISP backbone. Seems like they are just using Cable & Wireless for most of International bandwidth although IDEA ISP is not functional yet. Anyways, this post is not about their geeky upstream peers & routing tables but how bad one can setup DNS! :)
Today I was showing a good friend - how root servers are working and how they are connected. I was explaining him anycasting and gave example of k-root node which is hosted in Delhi by niXi i.e National Internet Exchange of India. I was totally stunned to find traceroute result to anycasting based block of k-root-node hosted in Delhi from my BSNL connection. Checkout traceroute here.
It seems like BSNL has gone totally wild in listening to announcements for 193.0.14.0/23 via ASN 25152 which is of RIPE-NCC-K-ROOT nodes.