linux-kernel - can I receive UDP broadcasts in aliases interfaces?

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Message-ID: <alpine.LFD.1.00.0804290021170.11820@tux.dis.ct>
Date:	Tue, 29 Apr 2008 00:27:15 +0200 (CEST)
From:	Pau Aliagas <linuxnow@...tral.org>
To:	lkml <linux-kernel@...r.kernel.org>
Subject: can I receive UDP broadcasts in aliases interfaces?

Hi,

I'm trying to use aliased interfaces to run multiple instances of a 
process that receives UDP broadcasts; I want to test all in a single 
computer when I have no access to the network.

My problem is that I can bind to the virtual interface ip to send and 
receive packets, but I don't receive udp broadcasts. I have no firewall 
rules that block it and udp bcasts are generated from the same computer 
too.

Is there any sysctl param I need to change? I'm usre this can be done but 
I haven't found how.

Thanks
Pau
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