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Multicast  [SOLVED]

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Dude2048
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Multicast

Thu Jun 20, 2019 3:25 pm

I tried to create a test multicast network. Example is below. When I start an RTP stream on the VLC server I can pick it up localy. So that is running The stream uses an address of 224.0.1.1. However the client won't connect to the stream on the server. When I setup a simple bridge with two ports in it, the stream will run, obviously. There is something with the layer 3 config, I think...

I read the Wiki on the site, viewed MUM demo's and so on. Is there anyone who can help me to get a bit further.



Tekening1.jpg
RB1100
Code: Select all
/ip address
add address=192.168.1.254/24 interface=ether1 network=192.168.1.0
add address=192.168.6.254/24 interface=ether6 network=192.168.6.0

/ip route
add distance=1 dst-address=192.168.2.0/24 gateway=192.168.6.1

/routing pim interface
add alternative-subnets=192.168.2.0/24,192.168.6.0/24

/routing pim rp
add address=192.168.6.254

CCR
Code: Select all
/ip address
add address=192.168.2.254/24 interface=ether2 network=192.168.2.0
add address=192.168.6.1/24 interface=ether6 network=192.168.6.0

/ip route
add distance=1 dst-address=192.168.1.0/24 gateway=192.168.6.254

/routing pim interface
add alternative-subnets=192.168.2.0/24,192.168.6.0/24

/routing pim rp
add address=192.168.6.254
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Dude2048
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Re: Multicast

Sun Jun 23, 2019 11:06 am

Bump
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Prewest
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Joined: Tue Oct 20, 2009 3:35 pm

Re: Multicast

Sun Jun 23, 2019 11:19 am

I`m missing the forward rule in the firewall, I don`t know the command out of my head but it should be

Firewall -> add rule -> forward -> DST-Adress = 224.0.0.0/4 -> -> in interface / out interface -> action accept or passthrough..
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Dude2048
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Re: Multicast

Sun Jun 23, 2019 1:10 pm

There are no firewall rules what so ever. The only config on the routers is that what you see.

But thank you vert much for thinking about it
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kakaxa
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Re: Multicast

Sun Jun 23, 2019 7:01 pm

try
Last edited by kakaxa on Thu Jun 27, 2019 5:23 am, edited 3 times in total.
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Chiverel
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Posts: 46
Joined: Fri Jan 12, 2018 7:28 pm

Re: Multicast  [SOLVED]

Mon Jun 24, 2019 10:39 am

There's a chance that you have packets with TTL=1. If you have them, you can increase TTL using mangle.

I recall it was explicitly mentioned for VLC when tried to configure my setup.

Check this example as well, it has nearly yours case.
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Dude2048
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Re: Multicast

Mon Jun 24, 2019 11:57 am

Thanks, I will test the solitions in a day or two and let know if it is resolved.
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Dude2048
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Re: Multicast

Mon Jun 24, 2019 9:01 pm

Thanks TTL it is!!!!
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pe1chl
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Re: Multicast

Mon Jun 24, 2019 10:43 pm

Is it not possible to configure the TTL in VLC?
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Dude2048
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Re: Multicast

Tue Jun 25, 2019 9:30 am

From what I have read, no. There is something in VLC that is preventing that.
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  4. RouterOS
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