igmp

Multicast Join on Linux and IGMPv3

We've run into a thorny problem. We are writing a c++ program that receives multicast UDP traffic. We're in the process of moving our applications to a different network environment and our operations team has requested that we support IGMPv3 membership announcements from our applications. Initial investigations indicate that Linux 2....

Sending IGMP with PHP

Can I send out IGMP packets with a PHP script? Is IGMP even on the Transport Layer? I was looking at some JOIN packets that are destined for 224.0.0.251. I noticed that the IP header had no port assigned but did have MAC addresses specified, which led me to believe that IGMP was not on the Transport Layer but rather on the Network Lay...