Home » Mailing list archives » linux-kernel » 2008 » April » 28

can I receive UDP broadcasts in aliases interfaces?

Previous thread: [patch 20/55] PNP: add debug output to encoders by Bjorn Helgaas on Monday, April 28, 2008 - 6:34 pm. (1 message)

Next thread: usb_submit_urb returns -38 - help? by Lyall Pearce on Monday, April 28, 2008 - 7:05 pm. (1 message)
[view original message]
From: Pau Aliagas <linuxnow@...>
To: lkml <linux-kernel@...>
Subject: can I receive UDP broadcasts in aliases interfaces?
Date: Monday, April 28, 2008 - 6:27 pm

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

--
[view original message]
From: Jan Engelhardt <jengelh@...>
To: Pau Aliagas <linuxnow@...>
Cc: lkml <linux-kernel@...>
Subject: Re: can I receive UDP broadcasts in aliases interfaces?
Date: Tuesday, May 6, 2008 - 4:30 am

Hm, set a proper broadcast address on the address? E.g.


	ip addr add 192.168.0.137/24 brd + dev eth0

--
Previous thread: [patch 20/55] PNP: add debug output to encoders by Bjorn Helgaas on Monday, April 28, 2008 - 6:34 pm. (1 message)

Next thread: usb_submit_urb returns -38 - help? by Lyall Pearce on Monday, April 28, 2008 - 7:05 pm. (1 message)