BGP Scanner Web Server with Node.js

Prerequisites

• Node.js

Install and run

npm install
npm run dev

Open in browser

open http://localhost:5500

Description

• This is a simple web server that can be used to scan BGP routes and firewall rules for a given AS number. The server will return the BGP routes and firewall rules for the given AS number. The server will also return the BGP routes for a given AS number and gateway IP address. The server will return the BGP routes and firewall rules in text/plain or JSON format.

• Source IP address prefixes from https://bgp.he.net/ and provide Prefixes v4 and Prefixes v6 for the given AS number.

---

Run scanner mode Firewall (default)

open http://localhost:5500/bgp_scanner?as=AS55095

• example output:

/ip firewall address-list
add list="Netflix Inc" address="69.53.247.0/24" comment="Netflix Inc"
add list="Netflix Inc" address="69.53.248.0/24" comment="Netflix Inc"
add list="Netlfix (C08284973)" address="69.53.249.0/24" comment="Netlfix (C08284973)"
...

---

Run scanner mode BGP Route

open http://localhost:5500/bgp_scanner?as=AS55095&mode=bgp&gw=192.168.1.1

• example output:

/ip route
add dst-address="69.53.247.0/24" gateway="" comment="Netflix Inc"
add dst-address="69.53.248.0/24" gateway="" comment="Netflix Inc"
add dst-address="69.53.249.0/24" gateway="" comment="Netlfix (C08284973)"
...

---

If you need output as JSON, add type=json (default is text/plain)

open http://localhost:5500/bgp_scanner?as=AS55095&type=json

Live URL

• https://mikrotik.heirro.dev/bgp_scanner?as=AS55095