AsyncLabs Forums

[guigra]

hi
Can I use udp multicast with this implementation ?

thanks

[stephanschulz]

i would be interested in this too.
does any one have an example?

thanks,stephan.

[GregEigsti]

Grepping the WiShield sources for multi shows that there are a few hits on multicast. Take a look at these sources and see what you can do. Also take a look at the uIP documentation to help figure out what the WiShield source is doing (WiShield is based upon the open source uIP stack).

From the uIP docs (http://www.sics.se/~adam/download/uip-1.0-refman.pdf)

uIP current supports broadcast packets as well as sending multicast packets.

Code: Select all

$ grep -ir multi *
WiServer.cpp:                            multi-pass transmission, local client
WiServer.h:                            multi-pass transmission, local client
uip-fw.c: * forwarding over multiple network interfaces with uIP.
uip-fw.c:    /* No time exceeded for broadcasts and multicasts! */
uip.c:       make sure that we listen to certain multicast addresses (all
uip.c:       hosts multicast address, and the solicited-node multicast
uip.c:       multicast packets that are sent to the ff02::/16 addresses. */
uip.c:  /* Demultiplex this UDP packet between the UDP "connections". */
uip.c:  /* Demultiplex this segment. */


Greg