Re: [Boost-users] asio multicast receiver takes all traffic addressed to the same port (example/multicast/receiver.cpp)

Subject: Re: [Boost-users] asio multicast receiver takes all traffic addressed to the same port (example/multicast/receiver.cpp)
From: Hei Chan (structurechart_at_[hidden])
Date: 2010-09-09 02:38:59

Hi,

If you are talking about same different multicast groups but same port, you are 
out of luck on linux.
There is a long debate on whether duplicated messages are expected.  You can 
google it.
Anyway, in short, you have to filter duplicates at the application level.

________________________________
From: Yuri T. <br0adcast.007_at_[hidden]>
To: boost-users_at_[hidden]
Sent: Wed, September 8, 2010 12:41:52 PM
Subject: [Boost-users] asio multicast receiver takes all traffic addressed to 
the same port (example/multicast/receiver.cpp)

Hi,
In my network there are multiple multicast streams with different addresses, but 
with the same port. I tried to run an example from the 
asio library (example/multicast/receiver.cpp). In Windows it works fine but in 
linux if you run multiple copies of the application they receive all packets 
arriving on the specified port and ignore the broadcast address.
How to filter packets by multicast address? (senderEndpoint contain real IP, not 
multicast)