Turn-off Broadcast/Multicast
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Description
- Hardware: ESP8266
- Core Version: 2.7.2
- Development Env: Arduino IDE
- Operating System: MacOS
### Settings in IDE
- Module: Wemos D1 R2 & mini
- Flash Mode: no idea
- Flash Size: 4MB/1MB
- lwip Variant: v2 Lower Memory
- Reset Method: ck
- Flash Frequency: 40Mhz
- CPU Frequency: 80Mhz
- Upload Using: OTA & SERIAL
- Upload Speed: 115200 & 921600
### Problem Description
Our production FW is running with almost no memory left and we experience part of our buffers overwritten by multicast packets, or at least the an old pointer is pointing to a memory region which is then filled by multicast packets (SSDP).
We would like to circumvent receiving buffers and information (like multicast/broadcast) that are not essential to us.
Is there a way to turn off the broadcat/multicast reception on the IP stack?
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