---
title: transportProtocol
framework: network
role: symbol
role_heading: Instance Property
path: network/nwparameters/protocolstack/transportprotocol
---

# transportProtocol

The transport protocol options used by connections and listeners.

## Declaration

```swift
var transportProtocol: NWProtocolOptions? { get set }
```

## See Also

### Configuring Lower Protocols

- [internetProtocol](network/nwparameters/protocolstack/internetprotocol.md)