---
title: kDNSServiceErr_NATPortMappingUnsupported
framework: dnssd
role: symbol
role_heading: Global Variable
path: dnssd/kdnsserviceerr_natportmappingunsupported
---

# kDNSServiceErr_NATPortMappingUnsupported

## Declaration

```swift
var kDNSServiceErr_NATPortMappingUnsupported: Int { get }
```

## Discussion

Discussion The NAT gateway doesn’t support PCP, NAT-PMP or UPnP.