VM connected to NSX VLAN backed segment cannot ping its own gateway

Products

• VMware NSX

Issue/Introduction

• VMs are connected to NSX VLAN backed segment which has a default gateway on physical switch. 
• VMs are able to ping other vms on the same subnet but cannot ping their own default gateway. 

Environment

VMware NSX 

Cause

Issue in the physical layer outside of the NSX. 

Resolution

To find if the issue is related to physical layer follow the below steps: 

Run ping from client towards default gateway and capture packets on client vms switch port and ESXi hosts uplinks following the steps mentioned in the KB Troubleshooting NSX using Packet Captures

If you can see that the packets are leaving vm's switchport and also leaving ESXi host uplink but not reaching the physical switch. This indicates that the issue is outside of NSX in physical layer.