Ar Mer, 2006-06-14 am 07:26 -0700, ysgrifennodd Jason:
> > Have you bound to a multicast group in your program?
>
> If BSD supports it why can't Linux?
Linux follows the standards draft. SO_REUSEPORT is fairly obscure
BSDism.
> Yes. My code works great on HP-UX but does nothing on
> Linux.
That doesn't actually prove very much. Its very easy to write incorrect
code that only works on one system, especially when endian-ness gets
involved with network code.
In particular if writing portable code you must remember to join the
group. You must also remember that the various htons/htonl macros need
to be correctly used or your code will break on little-endian systems.
The default IP_MULTICAST_LOOP value is probably also worth overriding if
you are being fairly paranoid.
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