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TheGlenn88
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Hex RB750Gr3 Switch issue

Fri May 18, 2018 3:16 pm

Hi Guys,

New here and new to the world of Mikrotik and RouterOS. Been wanting to take a dive for a few years and finally done it. Bought my first Hex and a Hap Lite to have a play around with and replace my RT-N66U loaded with tomato.

Basically I have been having problems with my new IPTV Box (Youview) that uses multicast to stream, it has been drowning my current router and causing problems due to high cpu load and dropping wireless connections or restarting altogether.

I have been trying to set up multicast on the Hex but found it not as straight forward with the obviously steeper learning curve on rOS, I did find a great idea on this forum which involved forwarding all the traffic at switch level from the port that the IPTV is on directly to the port the ISP is on. See link here - viewtopic.php?t=86582
After trying this it appears my router's switch is not cabable of this as described here https://wiki.mikrotik.com/wiki/Manual:S ... p_Features under the MT7621A.

Is there another clever way of doing this? My modem is a Draytek Vigor 130 running in bridged mode and the router connects using PPPOE so a PPP interface.

Also I am wondering if anyone has any valuable sources i.e books or udemy type services where I can learn in my own time about advanced networking and MikroTik. I have tried udemy but not found it very resourceful.

Many Thanks
Mike
 
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CZFan
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Re: Hex RB750Gr3 Switch issue

Fri May 18, 2018 3:43 pm

MTCNA, MTCTCE & MTCRE
 
TheGlenn88
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Re: Hex RB750Gr3 Switch issue

Fri May 18, 2018 9:21 pm

Thanks I’ll keep an eye out for that one. It’s currently unavailable (uk) there is another copy from another seller but it’s over £80 haha
 
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CZFan
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Re: Hex RB750Gr3 Switch issue

Fri May 18, 2018 11:00 pm

MTCNA, MTCTCE & MTCRE
 
TheGlenn88
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Re: Hex RB750Gr3 Switch issue

Sun May 20, 2018 2:38 pm

Thanks CZFan,

I had already tried those pointers a couple of times but couldn't get it to work. But I didn't give up, I decided to properly mess around, after many reset to default config's...

I managed to get it working after playing around, I used the same method as you linked however my traffic was not coming from ether5 (even though my STB is connected to ether5) the traffic was coming from "bridge" as the default configuration has all LAN ports bridged. I tried this without bridge but got lost. Once I changed ether5 to bridge traffic started flowing.

The other thing I was missing was I didn't realise you could move firewall rules around to prioritise them, my connections kept getting blocked as the allow rules were below in the order list.

After much messing around I have the IPTV working, I will be monitoring how this affects the RouterBoard because this similar setup was destroying my old trusty Asus and don't want to end up in the same situation. If anyone has any better solutions, would be greatly appreciated.

Another option I set was "IGMP Snooping" on the bridge.

I hope that having the LAN ports bridged doesn't mean that the other ports are going to be flooded, but I don't know, is there any way to monitor?

Thanks
Mik

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