[Bug 33008] UDP listening on specific IP address does not work properly

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=33008

--- Comment #16 from Erich Hoover <erich.e.hoover at gmail.com> ---
(In reply to facoptere from comment #15)
> (copied from https://github.com/mirrors/wine/issues/8 )
> 
> I just updated my Debian and compiled latest wine version.
> What I can reproduce with Wine version 1.7.16-91-ged51082 :
> 1/ on Linux 3.13-1, an UDP server does not bind the IP address specified,
> but binds 0.0.0.0.
> 2/ on the same machine, but if the IP address is a virtual one (eth0:1 for
> example), Wine works properly and binds the IP address specified.
> 3/ there is no issue whatsoever with Linux kernel 2.6.32-5 for example.

Hi facoptere, this is intentional behavior to allow broadcast packets on
sockets that are "bound" to a specific interface (broadcast packets only work
when binding to 0.0.0.0).  The new code will set a kernel option (not available
on old kernels) that sets the packet to go out through the interface associated
with the specified address.  There's also a packet filter to only accept
packets that come in through (or are destined for) the provided address.  Could
you give more detail on the specific problem you are running into?

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