multicast when AP is in bridge mode

RouterOS Wireless Networking
1

Hi!

I have a problem with OSPF on point-to-point wireless links. I have determined that the reason is losing multicast packets when they are sent from AP to the client. The AP is in bridge mode (single client).

So the question is: is it possible to change multicast sending mode when AP is a bridge, so that normal “reliable” send mode is used for multicast?

2

Thanks for multicast-helper setting!

3

Hi,
I have seen that this is a common issue with wireless links that can be easily fixed by using network type nbma.

4

What is ‘multicast helper’ doing?
What is “normal ‘reliable’ send” mode?

What is network type nbma?

5

about wireless multicast helper:
http://wiki.mikrotik.com/wiki/Manual:Multicast_detailed_example#Multicast_and_Wireless

nbma network for OSPF:
http://wiki.mikrotik.com/wiki/Manual:OSPF-examples#NBMA_networks