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New Heroku Lab: Containerized-Network
- donavanm 14y agoInteresting. The /30 ptp interface makes me suspect this is built on top of vpc. The other end of the connection would be a dedicated nat "router" instance. Efficiency would suck in that case. They could use a larger shared vpc (say /24). configure all the "worker" instance interfaces with the /30s and a couple "router" instances with multiple vifs on the top half of those /30s. Much better efficiency and availability story that way. Or I guess they could have gone all the way and done some layer 3 encap. Nvgre or l2tp maybe? I'm curious what a promisc interface would see. Or poke around the network/broadcast ranges. Or check out some ttl/ mss/options recon.