---
title: "startIBSSMode(withSSID:security:channel:password:)"
framework: corewlan
role: symbol
role_heading: Instance Method
path: "corewlan/cwinterface/startibssmode(withssid:security:channel:password:)"
---

# startIBSSMode(withSSID:security:channel:password:)

Creates a computer-to-computer (ad-hoc) network with the given network name, security type, and password on the specified channel.

## Declaration

```swift
func startIBSSMode(withSSID ssidData: Data, security: CWIBSSModeSecurity, channel: Int, password: String?) throws
```

## Parameters

- `security`: The security type to be used.
- `channel`: The channel on which the network will be created.
- `password`: The password to be used. This paramter is not applicable to open system authentication.

## Discussion

Discussion If name is nil, the machine name will be used as the network name. This operation may require an administrator password. note: In Swift, this method returns Void and is marked with the throws keyword to indicate that it throws an error in cases of failure. You call this method in a try expression and handle any errors in the catch clauses of a do statement, as described in Error Handling in The Swift Programming Language and About Imported Cocoa Error Parameters.