udp_bind() cannot receive broadcast.

RE: udp_bind() cannot receive broadcast.

Yoshihiro Goto — Thu, 18 Jul 2024 00:19:48 GMT

Hi,

> bind() to ANY address instead (0.0.0.0), that should make the socket receive all packets for the port which get through the IP layer,

Thank you for info. I can receive a broadcast packet using udp_bind() with (0, 0, 0, 0).
And I look forward to the implementation of broadcast reception.

Best Regards,
Yoshihiro Goto

RE: udp_bind() cannot receive broadcast.

Amanda Hsieh — Mon, 15 Jul 2024 13:04:21 GMT

Hi,

The team said that binding to a broadcast address has not been implemented. There are a few alternatives though:

bind() to ANY address instead (0.0.0.0), that should make the socket receive all packets for the port which get through the IP layer,
stick to multicast addressing instead, that's utilized by multiple network services in the system already (IGMP, mDNS etc.)
or just use a protocol which was designed for the job. I suggest the customer to get familiar with mDNS and DNS Service Discovery and Zephyr's implementation of those, which were designed exactly for that purpose (obtaining IP address of a host based on a service name)

Regards,
Amanda H.

RE: udp_bind() cannot receive broadcast.

Amanda Hsieh — Fri, 12 Jul 2024 19:04:42 GMT

Hi,

Let me check with the team and then back to you next week.

Regards,
Amanda H.