---
title: "SCVLANInterfaceCopyAll(_:)"
framework: systemconfiguration
role: symbol
role_heading: Function
path: "systemconfiguration/scvlaninterfacecopyall(_:)"
---

# SCVLANInterfaceCopyAll(_:)

Returns all virtual LAN (VLAN) interfaces on the system.

## Declaration

```swift
func SCVLANInterfaceCopyAll(_ prefs: SCPreferences) -> CFArray
```

## Parameters

- `prefs`: The preferences session.

## Return Value

Return Value The list of VLAN interfaces on the system. You must release the returned value.

## See Also

### Configuring VLAN Interfaces

- [SCVLANInterfaceCopyAvailablePhysicalInterfaces()](systemconfiguration/scvlaninterfacecopyavailablephysicalinterfaces().md)
- [SCVLANInterfaceCreate(_:_:_:)](systemconfiguration/scvlaninterfacecreate(_:_:_:).md)
- [SCVLANInterfaceGetOptions(_:)](systemconfiguration/scvlaninterfacegetoptions(_:).md)
- [SCVLANInterfaceGetPhysicalInterface(_:)](systemconfiguration/scvlaninterfacegetphysicalinterface(_:).md)
- [SCVLANInterfaceGetTag(_:)](systemconfiguration/scvlaninterfacegettag(_:).md)
- [SCVLANInterfaceRemove(_:)](systemconfiguration/scvlaninterfaceremove(_:).md)
- [SCVLANInterfaceSetLocalizedDisplayName(_:_:)](systemconfiguration/scvlaninterfacesetlocalizeddisplayname(_:_:).md)
- [SCVLANInterfaceSetOptions(_:_:)](systemconfiguration/scvlaninterfacesetoptions(_:_:).md)
- [SCVLANInterfaceSetPhysicalInterfaceAndTag(_:_:_:)](systemconfiguration/scvlaninterfacesetphysicalinterfaceandtag(_:_:_:).md)