Point to be NOTED while doing VPC Peering in AWS

 — Conditions/Restriction:

1. No overlapping IP ranges between 2 Vpcs
2. No transitive peering.edge routing,IGW,access across, VPCs
3. No NAT routing between VPCs
4. Cannot resolve private DNS values across VPCs
5. No cross- referencing of security groups between VPCs

— Owner of both VPCs need to confirm the peering request.

— The VPCs could be in same or different AWS accounts.

— The VPCs should be in same AWS region.

— We need to update route tables in both VPCs after peering is done.

— The traffic flow between the instances in two peered VPCs happens via private network.