Does not work on Windows

[eberkund]

What happened?

I am using Windows (11) and running the example programs does not work. I start the server and run dns-sd -q my-domain.local from another computer (macOS) and expect to receive a response from the Windows machine running the pion mDNS server. But I don't get anything. I see the mDNS packets coming through in Wireshark but the Go program does not seem to get them and therefore does not respond.

[bendahl]

Hi @eberkund,

are you still experiencing this issue? If so, have you tried doing this the other way around? I'm asking, because I'd like to understand whether this is solely a Windows issue or whether something else in your setup might be causing these issues. If it is solely a Windows issue, it might be worth double checking the interface bindings of the server. To my knowledge, the pion/mdns server tries to bind to all available network interfaces - see:

mdns/conn.go

Lines 60 to 65 in 04d95eb

	joinErrCount := 0
	for i := range ifaces {
	if err = conn.JoinGroup(&ifaces[i], &net.UDPAddr{IP: net.IPv4(224, 0, 0, 251)}); err != nil {
	joinErrCount++
	}
	}

I currently cannot test on Windows, so I cannot confirm this. However, using two Linux machines works.

Let me know how it goes.

Cheers
Ben

@Sean-Der: Maybe this is related to #93?

[edaniels]

I think this was fixed in bde59ba

[eberkund]

I think this was fixed in bde59ba

I'll give it a try. Thanks.

[eberkund]

@edaniels, the latest version fixes it. Thanks.

[edaniels]

Great! Thanks for testing :)

[eberkund]

@edaniels I am seeing a regression after updating to v2

[edaniels]

Ah, sorry! Can you describe the regression so I can look into it? We need windows testing

[eberkund]

Ah, sorry! Can you describe the regression so I can look into it? We need windows testing

I did a basic investigation with WireShark and the client seems to be working fine. I can see the mDNS queries but the server does not respond back.

Reverting back to 1.x fixed the issue.

[edaniels]

Gotcha, I likely broke something, sorry! I'll try to test this in the coming days.

[edaniels]

Annoying that it auto closed. @eberkund can you check on v2.0.7?

[eberkund]

It works on 2.0.7, thanks!