Vardan Pandya

VardanPandya

Networking and security.

I learn how networks work by building them, and how they fail by breaking my own.

0 packets routed0 threats stopped

Live, in the network behind this text. Move your pointer and you join it.

Hi, I'm Vardan.

I'm into two things: how networks carry the world's traffic, and how people try to break them.

I study computer science at VIT Vellore and grew up in New Delhi. I learn both sides the same way, by building the pieces myself.

Studying
Computer science, VIT Vellore. Graduating 2028.
Competing
Selected for the IIT Bombay cybersecurity CTF. Security and software hackathons.
From
New Delhi, where it is --:-- right now.
Writing in
C++ and Python. C, Java and Git from coursework.

Networking

How traffic finds its way, and what it trusts along the route.

Security

What happens when someone on the network does not play fair.

Hijack a route.

Networks trust each other's directions. Announce a more specific route and traffic follows you instead. Try it.

10.10.30.20 matches 10.10.30.0/24 from AS65020. Traffic reaches the services.

Client LAN connects to edge router AS65010, which peers with core AS65020 serving 10.10.30.0/24, and with leak AS65066. Client LAN10.10.10.0/24 EdgeAS65010 CoreAS65020 LeakAS65066 Services10.10.30.0/24
Edge routing table
PrefixOriginOrigin check

An educational model of my NetLab experiment. Nothing here touches a real network.

Your turn.

You know a little about me now. Fair is fair: this is what your browser told this page about you, before you clicked anything.

Read in your browser, kept there, sent nowhere. Most sites can read this much, and more. Noticing that is the job.

What your browser told this page

Explored, and next.

Explored hands-on

  • BGP peering in the DN42 lab
  • An HTTP client over raw TCP sockets
  • The IIT Bombay cybersecurity CTF

Researching next

  • BGP security and RPKI
  • Linux networking and eBPF
  • Fuzzing DNS and TLS
  • IPv6 measurement

Send me a packet.

Internships, collaborations, or something strange you caught on the wire.

+91 98710 78121New Delhi, IndiaGitHubRésumé