How to make "distributors" of video content from Mikrotik?

There is the following diagram.
Two clients on the Internet. Want to watch video from an ip camera using vlc (rtsp://admin:admin@x.x.x.x:9999/1/2).
Have a router with white ip (Mikrotik RB1100AHx2). There is an ip camera which is hanging on a pole on the street and connected via VPN through a 4G modem to my router. Accordingly, the external port 9999 propose on camera

And there is a problem. Every client when you connect picks up your channel with video content in it. As well as options of tariff plan is limited to 30 GB per month, for 20 days of two-a zero vyzhirayut all traffic. I sting the video quality to the level of "running squares", but this is not enough.

Tell me how I can overcome this terrible problem double, the same traffic? Multicast? Cercania a link that you can read?

In advance so much!
June 10th 19 at 15:32
1 answer
June 10th 19 at 15:34
on Mikrotik in any way.
lift the relay server nginx/vlc/ffmpeg/flussonic/wowza/nimble and spread the flow with his customers
I have

But the problem in the software. I can't (Registrar support) to pay for a particular login required camera. If using rstp to log in to the Registrar that all available channels are opened there. And in IB it doesn't suit me, I only need one camera to give away in vneshke. - Lorenzo commented on June 10th 19 at 15:37
do not understand what side here the presence of these glands and your paranoid attitude to security.
what you do not understand from the original answer? - Franz.Waters16 commented on June 10th 19 at 15:40
Yes everything is very clear. Decided to complain!

Why paranoid? Is to give access to all cameras on the object is something good? - Lorenzo commented on June 10th 19 at 15:43

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