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# SCNetworkInterfaceGetSupportedProtocolTypes(_:)

Identifies all of the network protocol types, such as IPv4 and IPv6, that can be layered on top of the specified interface.

```
func SCNetworkInterfaceGetSupportedProtocolTypes(_ interface: SCNetworkInterface) -> CFArray?
```

## Parameters

`interface`

The network interface.

## Return Value

The list of network protocol types supported by the specified interface, or `NULL` if no protocol types are supported.

---

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