ajanhalt

I don't think the source IP is in any of the data structures. This would get the source IP for the packet from Udp.remoteIP(). From what I got out of...

I sent before finishing the thought. Sending unicast responses will also require a separate SendUnicast(IPAddress) function. The library can't decide by itself whether the answer is unicast or what address...

The original query packet has the real source IP address with a multicast destination address. The answer packet from the MDNS library can be sent either to the multicast address...

Section 5.4 of the RFC (6762) covers the unicast flag. It just says the querier is willing to accept unicast responses or multicast responses. Using the unicast response just cuts...

Thanks. I'll add an example of a simple MDNS responder that selects unicast or multicast response based on the flag.