Hi,
On Sun, Feb 07, 2021 at 10:10:22PM +0330, morteza ali Ahmadi wrote:
How can we receive DNS responses to our DNS query? (Does tun4 require routing or something else?)
It is a normal linux network device and you will need to set up routing normally. Like routing to any other net-device. There's no difference with any other net-device. You can use routing, packet filtering, traffic shaping, NAT, ... as usual.