Source based routing support on NSX

Products

• VMware NSX

Issue/Introduction

There is a requirement to route traffic for a specific subnet within NSX via a specific next-hop on T0 gateway, however, the default static route on T0 gateway points to another next hop.

For example, a subnet of 10.10.10.0/24 is translated to 172.16.10.0/24 in NSX using SNAT, and the traffic coming from subnet 172.16.10.0/24 should get routed via a specific next hop 1.1.1.1, while the default static route points to a next hop of 2.2.2.2.

Environment

VMware NSX

Cause

Unsupported configuration

Resolution

Source network based routing is not supported on NSX, and the network configured in static route "Network" section represents the destination network which will be used for routing decisions: