---
title: "connect(toPort:completionHandler:)"
framework: virtualization
role: symbol
role_heading: Instance Method
path: "virtualization/vzvirtiosocketdevice/connect(toport:completionhandler:)"
---

# connect(toPort:completionHandler:)

Initiates a connection to the specified port of the guest operating system.

## Declaration

```swift
func connect(toPort port: UInt32, completionHandler: @escaping (Result<VZVirtioSocketConnection, any Error>) -> Void)
```

## Parameters

- `port`: The destination port number in the guest operating system.
- `completionHandler`: The block to execute with the results of the connection attempt. This block has no return value and takes the following parameter:

## Discussion

Discussion This method initiates the connection asynchronously, and executes the completion handler when the results are available. If the guest operating system doesn’t listen for connections to the specifed port, this method does nothing. For a successful connection, this method sets the sourcePort property of the resulting VZVirtioSocketConnection object to a random port number.

## See Also

### Connecting to Guest System Ports

- [connect(toPort:)](virtualization/vzvirtiosocketdevice/connect(toport:).md)