[streaming] How to select source interface when streaming

[Thomas Kernen]

Krzysztof Czajka wrote:
> Thomas Kernen napisał(a):
>> Rémi Denis-Courmont wrote:
>>> Le vendredi 31 août 2007, Thomas Kernen a écrit :
>>>> I've read the latest online documentation but couldn't find the
>>>> answer to my question. When streaming, how can I specify which
>>>> interface I wish to use at the source?
>>>>
>>>> I've come across an issue where it seems that sometimes it streams
>>>> out on eth0 and sometimes on eth1.
>>> It follows the routing table.
>>>
>> I actually meant for multicast traffic. Unicast was obvious but I 
>> should have been more specific.
> 
> 
> Yes, multicast traffic also could be routed in routing table:
> 
> /sbin/route add -net 224.0.0.0 netmask 240.0.0.0 dev eth0

I have this statement for eth0 anyhow I do see traffic moving between 
the 2 interfaces. All routes are static and there is not dynamic routing 
  enabled in this setup.

eth0 and eth1 are on 2 different subnets. Initially the traffic will be 
routed over eth0 as expected, anyhow from time to time (appears to be 
random/uncorrelated) packets are routed over eth1 instead.

Hence I was wondering if I was missing a parameter when launching the 
streams that I may have overlooked.

Thomas