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Re: [lwip-users] Networking device discovery protocols
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From: |
Sergio R. Caprile |
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Subject: |
Re: [lwip-users] Networking device discovery protocols |
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Date: |
Fri, 19 Jun 2015 11:09:57 -0300 |
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User-agent: |
Mozilla/5.0 (Windows NT 5.1; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 |
I think what you describe (and need) is a simple NetBIOS name server
(NBNS for short). It listens on a UDP port 137 for UDP broadcast queries
for its name, and responds to matches.
You could also configure the DHCP server to assign a DNS provided IP
address, so people would find your device based on a proper name
resolution. Although that requires you to be friends with the IT guy.
Using NBNS will work only in windoze environments, and I personally
don't know if that port is still operational in newer systems. Anyway,
the name server itself is pretty simple, I wrote a quick hack for it
several years ago; it is for another system but I can help you move it
to lwIP RAW API.