[KAFKA-15407] Not able to connect to kafka from the Private NLB from outside the VPC account

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Invalid
• Component/s: clients, connect, consumer, producer , protocol
• Environment: Staging, PROD
• Assignee: Unassigned
• Reporter: Shivakumar
• Created: 28/Aug/23 07:14
• Updated: 14/Feb/24 20:44
• Resolved: 14/Feb/24 20:44

Description

Problem statement :
We are trying to connect Kafka from another account/VPC account
Our kafka is in EKS cluster , we have service pointing to these pods for connection

We tried to create private link endpoint form Account B to connect to our NLB to connect to our Kafka in Account A
We see the connection reset from both client and target(kafka) in the NLB monitoring tab of AWS.
We tried various combo of listeners and advertised listeners which did not help us.

We are assuming we are missing some combination of Listeners and Network level configs with which this connection can be made 
Can you please guide us with this as we are blocked with a major migration.