`answer_from` assumes the response comes from the supplied nameserver

[shoulders]

My setup

• Windows 11 Pro
• Xampp (php 8.2.12)
• pfSense router acting as my DNS server
  • with standard DNS (port 53) and DoT (853) available
  • DoT is using self-signed certs
• NetDNS2 v2.0.8

the issue

• Consider the code below. It assigns the current nameserver to the answer_from variable.
• This is good for identifying which of the nameservers from the supplied array of nameservers that this request belongs.
• This code assumes that it is the supplied nameserver that responds, it does not take into account for DNS requests being redirect to another DNS server (e.g. DNS Hijacking).

netdns2/src/NetDNS2/Client.php

Lines 1162 to 1166 in 37dcffa

	//
	// add the name server that the response came from to the response object, and the socket type that was used.
	//
	$response->answer_from = $_ns;
	$response->answer_socket_type = \NetDNS2\Socket::SOCK_STREAM;

Feature request

Is it possible to get the real IP or domain name of the responding server from the response packet populate answer_from and not just assume that it is the supplied nameserver (eg $_ns).

so:

• answer_from should be the IP the response packet comes from (i.e. source IP), or the FQDN and the IP if they can be grabbed from the response
• send_toshould be equal too $_ns

thanks