---
title: packetFlow
framework: networkextension
role: symbol
role_heading: Instance Property
path: networkextension/nepackettunnelprovider/packetflow
---

# packetFlow

A NEPacketTunnelFlow object which is used to receive IP packets routed to the tunnel’s virtual interface and inject IP packets into the networking stack via the tunnel’s virtual interface.

## Declaration

```swift
var packetFlow: NEPacketTunnelFlow { get }
```