As I said in my previous post, the netbios code in the contrib module
creates a udp pcb that hooks to the netbios port (don't know right now
which one). Now if a netbios name resolution request is received (these
requests are sent as broadcast) that matches the configured name, it
responds with its IP address.
However, there are more netbios packets than name resolution and the
netbios code in lwIP does not handle any other types. When lwIP does not
respond although you initialized the netbios code correctly (init it
*after* the complete stack has initialized and from the tcpip_thread if
using multithreading), the packets either ask for another name or are
meant for other things (like file sharing, etc.).
To check whether netbios works, you should define the name correctly
(look at the define at the top of netbios.c) and execute a ping to that
name from a windows PC (linux/unix only uses DNS for name resolving).
You should then see netbios request/response packets in wireshark and
ping request response should work.
Simon
Chris_S wrote:
The recent post about Netbios has prompted me to ask similar.
I know nothing about Netbios. Windows sends out those Yellow packets
I see in Wireshark all the time, which lwIP seems to ignore. I
realize they probably don't matter but they constantly fill up the
screen. Annoying.
I guess they are asking or trying to tell lwIP something. I tried
hooking up the Netbios code that was in the contrib section, but I
didn't see any effect. lwIP still did not respond to any of the Yellow
packets that I could tell.
I know I can remove the Windows LAN modules that are creating those,
but just wondered if any code for lwIP is around that actually
responds to them, and gets them to shut up!
Thanks, Chris.
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