multicast to unicast translation

RouterOS Beginner Basics
1

I am looking for an affordable Wireless Access Point which supports multicast to unicast translation and was hoping ROS has this implemented. I found the following thread on this forum which briefly discusses this, but it is from march 2012 (not implemented yet…):
http://forum.mikrotik.com/t/iptv-solution-with-udpxy/57042/14

I am hoping that by now the feature is implemented…is this the case? We really need this option for an audio multicast application where current losses are huge due to the non-acked nature of the multicast implementation in WiFi.

Thanks,
Dirk

2

you can attempt to use multicast-helper in ‘/interface wireless’ section

3

Hi.
Today I tested successfully the multicast to unicast conversion.

I tested it with the following method: bigbunny.ts → FFMPEG → udp stream to 239.20.1.1:1234 → from PC to Mikrotik RB951U → NAT rule

  chain=dstnat action=dst-nat to-addresses=172.16.5.250 to-ports=58000 protocol=udp dst-address=239.20.1.1 dst-port=1234 log=no log-prefix=""

→ natted traffic back to PC → VLC shows the original multicast and the translated unicast stream simultanuosly. :slight_smile:

PC was on 172.16.5.250, XP with DOS-FFMPEG. Router was on 172.16.5.254, RB951Ui-2HnD with ROS 6.27
You can see the incoming and outgoing traffic on the same interface…
multi2uni2.jpg
multi2uni2.jpg
Best regards: CsXen