How can I create a tun interface?

Question

Ricardo1980 OP

Created Jun ’18

Replies 1

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Hello,

I would like to achieve this in order to parse DNS datagrams:

Set the system DNS to some private address, let's say A.
Route A to tun interface.
Parse the DNS request received

How do I create an instance of a TUN interface inside a subclass of NEPacketTunnelProvider?

I don't understand that very well. Any clue?

Thanks a lot.

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Answer 1

DTS Engineer OP

Apple

Jun ’18

Network Extension providers do not give you direct access to TUN interfaces. Rather, the TUN interface is abstracted via various APIs. For example, for a packet tunnel provider you transfer packets to and from the TCP/IP stack via a

NEPacketTunnelFlow

object which you access via the

packetFlow

property.

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