Frequently asked questions about network connectivity for ApsaraMQ for Kafka instances. Why can't I ping an ApsaraMQ for Kafka endpoint? How to access an ApsaraMQ for Kafka instance from an ECS instance in a different zone Is public network access supported for ApsaraMQ for Kafka instances? How to access an ApsaraMQ for Kafka instance using an agent Do I need to select the 172.16.0.0/12 CIDR block for a classic network? Can I interconnect different VPCs?