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Articole: 20
  1. Indian backbones need AS_PATH filters

    The security of India’s routing infrastructure is something that isn’t discussed as much as cybersecurity, software vulnerabilities, etc.

  2. Incremental backup on AWS Glacier with rustic

    I have been a heavy restic user for several years.

  3. Fascinating history of transit-free tier 1 networks

    I find the concept of transit-free / Tier 1 networks fascinating.

  4. Use of VRF in dual WAN setup

    Over the weekend I migrated my home router from multiple routing tables to a VRF-based design, placing each WAN uplink into its own VRF.

  5. The recent debate around Airtel’s priority 5G generated plenty of noise.

  6. RFC8950: Announce IPv4 with an IPv6 next-hop

    For the last few days I have been playing with RFC8950 setup, which allows routing of IPv4 on top of IPv6.

  7. Telegram BGP hijack due to weird blackholing config

    Since the Telegram’s prefix hijack (4 days ago on 17-Jun-2026) by RCom, there is visible noise in the BGP routing table from multiple other Indian ISPs, including Tata Teleservices (AS45820) / Lightstorm (AS135709/AS152144), etc. mostly in IPv6.

  8. Telegram prefixes hijack by Rcom AS18101

    The last few hours were quite noisy with a lot of discussion around Telegram block and Rcom’s hijack of Telegram prefixes.

  9. Mapping major CDNs across the globe

    In Dec 2022 I mapped popular CDNs like Google GGC, Facebook FNA, Akamai, etc. across Indian networks (post here).

  10. Measuring IPv6 deployment on Indian Govt websites

    India has done well on IPv6 deployment thanks to Jio taking the lead in 2016, along with Airtel & VI aggressively catching up.

  11. Airtel-Tata Comm routing is cold potato in India?

    Over the years, I have seen a number of traces between Airtel (AS9498) and Tata Comm (AS4755) in India, which strongly suggests that routing tends to be ‘cold potato’ between them.

  12. Strange route with Jio and GTT as adjacency

    Last month (on 18th April 2026), I saw an alert for a strange route announcement: Prefix AS Path Origin ASN 117.120.58.0/23 262427 262761 263444 6453 3257 55836 9498 134863 134863 Background While this specific alert triggered because it had three large I…

  13. Netflow for home router & Linux servers

    For the last few weeks, I have been running a NetFlow collector for the home router.

  14. Who can light fibre in India?

    Friend and his two homes… Recently, a friend of mine mentioned his plan to procure dark fibre to connect two of his homes.

  15. Airtel India - Europe routing issues

    Since 20:08 IST / 14:38 GMT on 28 Jan 2026, the latency between Airtel India and Europe has gone up along with significant packet loss.

  16. When BGP lies, the internet believes!

    Earlier in the day, I came across Liberty Global (AS6830) seemingly originating several Vodafone Romania (AS12302) prefixes.

  17. For the last few days, I have been playing with OpenTofu.

  18. NCMC design and technical limitations

    I was in Mumbai a few months ago for the Equinix India Peering forum.

  19. Understanding multiple routes from same ASN

    A while back bgp.he.net added the feature of a live route propagation graph for a given prefix.

  20. Mapping Starlink's global IP transit providers

    A while back, I posted about Starlink’s Indian upstream.