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jeelabs / esp-link

esp8266 wifi-serial bridge, outbound TCP, and arduino/AVR/LPC/NXP programmer
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MDNS is only broadcasting over AP network #346

Closed unlimitedbacon closed 4 years ago

unlimitedbacon commented 6 years ago

I can only get the MDNS broadcasts to work in AP or STA+AP mode. In STA+AP mode they are only broadcast over the AP side. It doesn't work at all in STA mode.

I looked through the code and couldn't find anything helpful. Is this an SDK issue?

kriegste commented 6 years ago

There also needs to be a

wifi_set_broadcast_if(STATIONAP_MODE);

in your code. But I don't know if that solves your problem. Tell us. MDNS is an ongoing nuisance. :(

unlimitedbacon commented 6 years ago

That call is already present in socket.c https://github.com/jeelabs/esp-link/blob/a59d4c3177763e6ff29f1fc24acb8387a82061ff/socket/socket.c#L299

I'm not sure where else it would go.

kriegste commented 6 years ago

I am not sure if this is the case here, but

wifi_set_broadcast_if(STATIONAP_MODE);

can only be called after STATIONAP_MODE is set. If you're in STATION_MODE or SOFTAP_MODE, the call will fail. At least this is what I found out in my experiments...