How to bind a connection to specific Interface/utun?

Question

Created May ’23

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I am creating a network connection with NWConnection class.

let serverURL = URL(string: "ws:&#x2F;&#x2F;example.com")!
let connection =  NWConnection(to: .url(serverURL)) , using: parameters!)
connection?.start(queue: .main)

let suppose we have three interface a system.

en0
utun0
utun1

By default traffic for this connection will tunnel through en0

I wants that traffic for this connection should tunnel through utun1

how we can do this?

Thanks-:

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Answer 1

DTS Engineer OP

Apple

May ’23

The NWParameters object you use to create the connection has requiredInterfaceType, requiredInterface, prohibitedInterfaceTypes, and prohibitedInterfaces properties.

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