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  "title" : "Ethernet Entity Keys"
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# Ethernet Entity Keys

Keys that correspond to values in the `kSCEntNetEthernet` dictionary.

## Topics

### Constants

[`let kSCPropNetEthernetMediaSubType: CFString`](/documentation/SystemConfiguration/kSCPropNetEthernetMediaSubType-swift.var)

The Ethernet key `MediaSubType`, whose value is of type `CFString`.

[`let kSCPropNetEthernetMediaOptions: CFString`](/documentation/SystemConfiguration/kSCPropNetEthernetMediaOptions-swift.var)

The Ethernet key `MediaOptions`, whose value is of type `CFArray`, containing elements of type `CFString`.

[`let kSCPropNetEthernetMTU: CFString`](/documentation/SystemConfiguration/kSCPropNetEthernetMTU-swift.var)

The Ethernet key `MTU`, whose value is of type `CFNumber`.


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