AWS VPC Peering Connection Not Working

Question

I've set up a VPC peering connection between two of my VPCs, but they can't ping or even find each other for some reason. I allowed them to talk to each other in the security rules.

Any idea if I'm missing anything here?

Answer 1

Have you followed a guide, such as this one?

• Create VPC peering connection
• Accept connection
• Update route table
• Update security groups

Based on your question I suspect you haven't updated your route tables.

If you have done all this please update your question with much more detail - exactly what you've done, screenshots of relevant parts of the console, and a ping demonstrating that the connectivity to a working instance doesn't work.