NSX-T Data Center REST API

ForwardingMode (type)

{
  "enum": [
    "IPV4_ONLY", 
    "IPV6_ONLY", 
    "IPV4_AND_IPV6"
  ], 
  "id": "ForwardingMode", 
  "module_id": "Switching", 
  "nsx_feature": "L2Ipv6", 
  "type": "string"
}