Unable to mount NFS datastores from behind NSX VPCs

Products

• VMware NSX

Issue/Introduction

• VMs and VKS pods are unable to connect to anything beyond the T0 logical-router
• NSX Traceflow shows the packet being dropped at the T0 blackhole interface:
• Route Aggregation configuration has a prefix that includes the destination IP address residing outside of the NSX environment:

Environment

VMware NSX

Cause

Route Aggregation configuration for destination traffic outside of NSX is causing the packets to drop at the blackhole interface of the T0 router. This is expected behavior.

Resolution

Remove the Route Aggregation prefix configuration that covers any subnet that does not reside behind NSX.

Additional Information

Aggregate and Filter Routes to Uplinks

Related issue:

/24 route that represents an aggregation route disappears from T0 routing table, while the small subnets are still present on the routing table.