Security is a major concern today – and rightly so. Virtually all personal computers have a built-in firewall. And multiple layers of security protect all corporate networks. This helps to keep unwanted intruders out. But it can also cause difficulty for streaming Internet applications such as web conferencing.
Media Motion Online Conferencing solves this by using an RTMP connection on standard ports. If this fails, Media Motion Online Conferencing will re-attempt the connection via RTMPT – or HTTP tunneling. Using RTMPT disguises Media Motion Online Conferencing’s packets as HTTP packets by changing their header information to that of standard Internet traffic – enabling access through 99% of all personal and corporate firewalls.
Media Motion Online Conferencing’s RTMP packets are not UDP but rather they are TCP. This provides a higher reliability in most network scenarios since TCP is a “reliable” protocol – guaranteeing arrival of all data. Additionally, while TCP is supported in all networks, UDP is often restricted making it easier to deploy. Media Motion Online Conferencing will typically connect of ports 1935, 443, and 80 – in that order. If the standardized port for RTMP 1935 is not open, Media Motion Online Conferencing will attempt port 443 and them port 80. These 2 ports are the standard ports for SSL and website traffic. Therefore, they are almost always open.
For corporate firewalls where there may be strict stateful packet inspection that will prevent RTMP traffic, Media Motion Online will automatically open a tunneled connection and wrap its data in HTTP packets to increase the likelihood of a successful connection.