Thanks for your response Simon I am interrested in all information from the people using multicast application in the mailling list . In my understanding, when you want to open a socket with a multicast address, the application should "register" for a multicast address toward the stack (using setsockopt in BSD API). Then the stack should register for this multiscast address toward the Ethernet driver. I haven't seen any thing in socket.c but because lwip has its own netconn API it can be located elsewhere. For the documentation, i just wanted to be sure that i haven't miss "some think".
Regards, Christophe -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, May 20, 2009 9:19 PM To: Mailing list for lwIP users Subject: Re: [lwip-users] multicast and porting issue. PELISSIER Christophe wrote: > One point is not clear for me, is Lwip able to manage multicast > address? can we bind, send and receive on multicast address using BSD > like interface? If I remember correctly, when things like IGMP are turned off, lwIP should not make a difference between unicast and multicast. However, I'm not completely sure. If Frédéric would read this, maybe he could clarify it (as one of the active developers, he has already used lwIP for multicast protocols, so it must be working _somehow_). > Second point is there a porting guide documentation (except wiki)? I know this answer is not what you'd like it to be, yet maybe what you've expected: as an open source project which is driven mainly by people working on it in their free time or as part of their company's project, public documentation is not as extensive as many of us would like it to be... As with many open source projects, unfortunately most of the 'documentation' lies in the source code itself and the developer's brains :-( Nevertheless, if you take the win32 port (maintained mainly by Frédéric and me) as an example, things should be great ;-) Oh, and if you ever feel like writing documentation (especially as a beginner who still sees the possible abnormalties in lwIP), please feel free to put your know-how in the wiki! After all, the wiki in some respects already provides more information than the txt doc files in CVS, thanks to our users! Simon _______________________________________________ lwip-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/lwip-users _______________________________________________ lwip-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/lwip-users
