|Subject:||Re: [Discuss-gnuradio] TunTap Interace for GNU Radio IEEE 802.11 a/g/p module|
|Date:||Fri, 3 Feb 2017 22:22:44 +0100|
It’s just any value. In the example setup I configure static ARP entries (i.e., on another device I would add an ARP entry that maps the IP of the TUN/TAP devices to the MAC address that I set here.
No that doesn’t have anything todo with each other. In fact, that would make it more complicated.Use different subnets for the USRP and the WiFi/SDR communication.
If you USRP is not in that subnet, everything is fine.
If the IP stacks has a packet for a host that’s in the subnet of the TUN/TAP interface, it puts the packet in the TUN/TAP interface. With this, the packet ends up in GNU Radio, which constructs a WiFi frame out of the Ethernet frame (finally it creates some IQ samples) and sends it to the USRP. (In your case the USRP is also connected via IP, but that’s a totally unrelated network).
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