# How to stream live multicast on corporate LAN **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [July 10, 2009, 7:31am UTC](https://community.wowza.com/t/how-to-stream-live-multicast-on-corporate-lan/710 "2009-07-10T07:31:12Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![system](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/system/32/447_2.png) [@system](https://community.wowza.com/u/system)\ **Post date:** [July 10, 2009, 7:31am UTC](https://community.wowza.com/t/how-to-stream-live-multicast-on-corporate-lan/710/1 "2009-07-10T07:31:12Z")
I have a requirement for streaming a live video/audio feed to approx 1500-2000 desktops on a corporate LAN. To setup and test the workflow, I’ve setup a simple webcam and using the instructions found on these forums, I’ve connected it to a trial of Telestream’s Wirecast which transcodes and transmits the feed via RTMP or RTSP/RTP to a trial install of Wowza Media Server. I’m then able to connect to the wowza stream with the LiveVideoStreaming example client. The problem with this method is the client delivery is done via unicast. Where do I find instruction on how to provide this stream via multicast? Our preference would be to provide a multicast stream connected via a web client. Thanks, Brad ---
**Author:** ![Charlie\_Good](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/charlie_good/32/383_2.png) [@Charlie\_Good](https://community.wowza.com/u/Charlie_Good)\ **Post date:** [July 10, 2009, 6:02am UTC](https://community.wowza.com/t/how-to-stream-live-multicast-on-corporate-lan/710/2 "2009-07-10T06:02:00Z")
The Flash player does not support multicast delivery. So it is unicast over TCP only. In the next version of Wowza Media Server (Wowza Media Server 2) we are adding support for RTSP/RTP out. This version will support multicast out to players such as the QuickTime player and VLC. Charlie ---
**Author:** ![Charlie\_Good](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/charlie_good/32/383_2.png) [@Charlie\_Good](https://community.wowza.com/u/Charlie_Good)\ **Post date:** [February 1, 2010, 3:01pm UTC](https://community.wowza.com/t/how-to-stream-live-multicast-on-corporate-lan/710/3 "2010-02-01T15:01:19Z")
What player are you going to use? Why not just do Flash playback? Charlie ---
**Author:** ![Charlie\_Good](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/charlie_good/32/383_2.png) [@Charlie\_Good](https://community.wowza.com/u/Charlie_Good)\ **Post date:** [February 3, 2010, 2:42pm UTC](https://community.wowza.com/t/how-to-stream-live-multicast-on-corporate-lan/710/4 "2010-02-03T14:42:42Z")
Flash does not support multicast. We do support multicast out but in this situation it doesn’t really make sense. You are better off just using an encoder that can directly generate multicast. There is no need for a media server if you are just going to go from live feed to multicast. Charlie ---
**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\ **Post date:** [February 8, 2010, 8:51pm UTC](https://community.wowza.com/t/how-to-stream-live-multicast-on-corporate-lan/710/5 "2010-02-08T20:51:33Z")
There isn’t a lot of documentation. The user guide mentions it, and the configuration reference has one relevant entry under RTP/DatagramConfiguration/[Incoming, Outgoing/\*] And there are several threads recently if you search around here: [http://community.wowza.com/t/-/714](http://community.wowza.com/t/-/714) [https://www.wowza.com/forums/showthread.php?p=35666](https://www.wowza.com/forums/showthread.php?p=35666) Richard ---
**Author:** ![Prabodh\_Shrestha](https://avatars.discourse-cdn.com/v4/letter/p/6de8d8/32.png) [@Prabodh\_Shrestha](https://community.wowza.com/u/Prabodh_Shrestha)\ **Post date:** [February 1, 2010, 4:00pm UTC](https://community.wowza.com/t/how-to-stream-live-multicast-on-corporate-lan/710/6 "2010-02-01T16:00:28Z")
Hi Charlie, We have about 10 internal analog TV channels which we wanted to Multicast each channel through our LAN 24/7. How can we configure wawza 2.0 to multicast multiple video stream (about 10 video stream at the same time) to about 3000 desktops of which we assume about 10% would view it at the same time. ---
**Author:** ![Prabodh\_Shrestha](https://avatars.discourse-cdn.com/v4/letter/p/6de8d8/32.png) [@Prabodh\_Shrestha](https://community.wowza.com/u/Prabodh_Shrestha)\ **Post date:** [February 2, 2010, 8:25am UTC](https://community.wowza.com/t/how-to-stream-live-multicast-on-corporate-lan/710/7 "2010-02-02T08:25:09Z")
Hi Charlie, Thank you for the quick response. We would like to reach large audiences with minimum network congestion. We are looking for a Multicast solution for about 10 video (internal TV) channels. Currently delivered through traditional cable to TV directly 24/7. We would like to deliver these channels to all 3000+ users in our organization. My understanding is that Multicast allows a single media stream to be played simultaneously by multiple clients, drastically reducing bandwidth use; and we would like to take advantage of this. As for our users, they should be able to play all 10 TV channels directly to their PC using flash player or any other players such as QuickTime, Windows Media Player, VLC. _ **What player are you going to use?** _ We are already using flash playback for our live and on-demand stream using Wowza 2.0. **_Why not just do Flash playback?_** Are you suggesting that streaming these internal 10 analog TV channels through Wowza 2.0 using Flash playback is equivalent to Muticast? Regards, Prabodh\_ ---
**Author:** ![Stijn\_Deroo-Van\_Mael](https://avatars.discourse-cdn.com/v4/letter/s/50afbb/32.png) [@Stijn\_Deroo-Van\_Mael](https://community.wowza.com/u/Stijn_Deroo-Van_Mael)\ **Post date:** [February 8, 2010, 4:07pm UTC](https://community.wowza.com/t/how-to-stream-live-multicast-on-corporate-lan/710/8 "2010-02-08T16:07:44Z")
Charlie, Where can I find some documentation about multicast? I want to stream a playlist, and multicast-out to the clients (players).