B4R Question ESP8266 UDP Maximum Buffersize

[Bert Oudshoorn]

Tried to receive an UDP packet of 4096 bytes, but about 1200 bytes seems to be a maximum.
My StackBufferSize has been set to 5000.
I looked in the wifi libraries but could not find maximum settings.
Are packets of 4096 bytes possible? Ans also sending packets of that size?

 

[Erel]

It seems like the maximum size of received packets is 1460. Set the StackBufferSize to 1700+.

The sending limit is either 512 or 1460. It is not exactly clear. See this issue: https://github.com/esp8266/Arduino/issues/1009

 

[Bert Oudshoorn]

Erel, thank you !