[Freeciv-Dev] Re: (PR#6707) Announce server on LAN

["Raimar Falke" <i-freeciv-lists@xxxxxxxxxxxxx>]

On Wed, Nov 05, 2003 at 09:15:23AM -0800, Raimar Falke wrote:
> Also portabiltiy is important. Searching for SIOCADDMULTI and "win32"
> or "winsock" didn't reveal
> anything. 
> http://msdn.microsoft.com/library/en-us/winsock/winsock/wsaioctl_2.asp
> mentions SIO_RCVALL_MCAST and adds:
> 
>    Setting this ioctl requires Administrator privilege on the local
>    computer. SIO_RCVALL_MCAST is available only in Windows 2000 and
>    later versions of Windows.
> 
> It doesn't looks to me like there is an easy way to add this feature
> for win32 systems.

Google found:
http://www.gamedev.net/reference/articles/article1587.asp

So this leaves the question which multicast group should be used.
There are "Administratively Scoped" groups (rfc2365) and "Global
scoped" groups (rfc2770) and probably some others.

        Raimar

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