Re: [Dnsmasq-discuss] DNS - ICMP - Destination unreachable (Port unreachable) ?

2015-05-13 Thread Albert ARIBAUD
Bonjour Nikita, Le Wed, 13 May 2015 00:58:58 -0700, Nikita N. niki...@operamail.com a écrit : Hi Albert, thank you for your hints, I'm going to setup as you suggest, and see what happens. Anyway, you wrote something very interesting here: a DNS answer is always through IPv4, either over

Re: [Dnsmasq-discuss] DNS - ICMP - Destination unreachable (Port unreachable) ?

2015-05-13 Thread Nikita N.
Hi Albert, thank you for your hints, I'm going to setup as you suggest, and see what happens. Anyway, you wrote something very interesting here: a DNS answer is always through IPv4, either over UDP or TCP. TCP?? :) Do you mean, I can send a TCP frame from port 53 to Dnsmasq with a DNS query? And

Re: [Dnsmasq-discuss] DNS - ICMP - Destination unreachable (Port unreachable) ?

2015-05-13 Thread Nikita N.
Hi Simon, thanks for the bet! :) So if I'm understanding correctly, it is nothing related to Dnsmasq, right? By your opinion, what is the purpose of such a ICMP/UDP frame sent from src port 53? Is that some kind of alternate DNS mechanism? Is that anything standard behavior? When the answer

Re: [Dnsmasq-discuss] DNS - ICMP - Destination unreachable (Port unreachable) ?

2015-05-13 Thread Albert ARIBAUD
Hi Nikita, Le Tue, 12 May 2015 23:49:55 -0700, Nikita N. niki...@operamail.com a écrit : Hi Simon, thanks for the bet! :) So if I'm understanding correctly, it is nothing related to Dnsmasq, right? Right. By your opinion, what is the purpose of such a ICMP/UDP frame sent from src port

[Dnsmasq-discuss] DNS - ICMP - Destination unreachable (Port unreachable) ?

2015-05-12 Thread Nikita N.
Hi All, was wandering about those ICMP frames, which keep coming out always right after every Dnsmasq responses. What is their origin? What is their purpose? Just to be sure what I'm talking about, here how it happens: 1) client (192.168.2.2) - gateway (192.168.2.1), DNS Standard query about