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RE : [lwip-users] Multi-cast UDP messages?
From: |
Frédéric BERNON |
Subject: |
RE : [lwip-users] Multi-cast UDP messages? |
Date: |
Fri, 11 May 2007 16:24:14 +0200 |
Hi,
I know that even before 1.1.0, we could send UDP on multicast address (when I
start with lwIP, that was one of first tests I did). From memory, nothing was
necessary to patch. Recv multicast was a little bit difficult (because IGMP
wasn't available), but if you get last CVS release, IGMP is now supported.
Can you add some traces after :
lwip_sendto(2, data=007A977E, size=22, flags=0x0 to=239.192.26.32 port=2222
Before netconn_connect, and before lwip_send, to see where the stack hang ?
====================================
Frédéric BERNON
HYMATOM SA
Chef de projet informatique
Microsoft Certified Professional
Tél. : +33 (0)4-67-87-61-10
Fax. : +33 (0)4-67-70-85-44
Email : address@hidden
Web Site : http://www.hymatom.fr
====================================
P Avant d'imprimer, penser à l'environnement
-----Message d'origine-----
De : address@hidden [mailto:address@hidden De la part de Robert Morse
Envoyé : vendredi 11 mai 2007 15:52
À : Mailing list for lwIP users
Objet : [lwip-users] Multi-cast UDP messages?
Hi,
I am trying to get version 1.2 of the lwip stack going, and while I am
having no problems with Webservers, an normal upd traffice. But I have the
need to send multi-cast UDP packets and running into the whole stack locking
up, and causing a reboot.
My question, is does the stack support sending out Multi-cast UDP
packets.
I see comments in the code about receiving, and I would think sending
would
be easier.
I have attached a detailed log starting where the lwip gets the
lwip_sendto
call. I have every debug item turned on except a few dealing with ppp
and slip.
The strange part is after the lwip_sendto(...)
I never see a tcpip_thread: API message
then a udp_connect: connected message.
Frédéric BERNON.vcf
Description: Frédéric BERNON.vcf
- RE : [lwip-users] Multi-cast UDP messages?,
Frédéric BERNON <=