lkml.org 
[lkml]   [2009]   [Jun]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: When does Linux drop UDP packets?
On Thu, 4 Jun 2009, Alexander Clouter wrote:

> Philipp Reh <sefi@s-e-f-i.de> wrote:
>>
>> I have the following setting in which a client that resides on the same
>> physical network as a server wants to receive any UDP packet that
>> arrives on any of its interfaces sent by that server.
>>
> Read up about multicasting, it will do what you want, does not depend on
> the IP address of the destination workstation and will also cross
> subnets if you want it to.
>
> It's dead easy to transmit and receive multicast traffic, broadcasting
> network traffic is so 1980's :)

there is only a difference between multicast and broadcast traffic if you
are spanning subnets.

but the issue here is the rp_filter, and that would also filter out
multicast packets from sources that you don't have routes to.

David Lang



\
 
 \ /
  Last update: 2009-06-05 01:23    [from the cache]
©2003-2011 Jasper Spaans