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chaf84
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Posts: 8
Joined: Thu Apr 24, 2014 9:13 am

Ip-tv igmp or pim?

Thu Apr 24, 2014 9:44 am

Hi
I live in Sweden and has Telia as isp. I want to be able to use some apps that telia has to control my tv from my phone. For this to work the ip-tv box have to be on the same subnet as my wifi.
Today I have this setup
Eth1 - From isp
Eth3 - Ip-tv box
All other local bridge with ip 10.0.1.1/24
Telia use vlan 845 for ip-tv so on Eth3 I have untagged 845, my ip-tv box works but I cant use the apps because it gets a public ip.
On Eth1 the untagged is the internet access.

I have tried to use pim and igmp but doesnt understand how to config to get it to work. I have used torch on Eth3 and could see that 239.0.0.0/24 is used and a adress that start with 79 is where the tv-stream is coming from.

Can anyone point me in the right direction to solve this?
 
sasskass
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Posts: 84
Joined: Wed Mar 15, 2006 4:39 pm

Re: Ip-tv igmp or pim?

Mon May 05, 2014 3:41 am

Hello,

Try igmp proxy, and change the mac address according to the STB mac - first three pairs. For example Motorola STB-s starting: 00:02:9B:xx:xx:xx, or look at your STB and find the mac. So change your incomings interface mac and enable dhcp client on that interface, 99% you will get correct ip configuration from Telia - Changing the mac must be done from cli.

Then set multicast-helper to "full" on wireless device.

PIM will not work, cause they do not accept any traffice related to the multicast and your port will be blocked for a while.

But i have to tell you, that 99% of channels are encrypterd with Verimatrix and you will get blank screen!

Aleksander
 
tapalcapo
just joined
Posts: 12
Joined: Sat Mar 24, 2012 5:38 pm

Re: Ip-tv igmp or pim?

Mon Aug 04, 2014 6:06 pm

Hi, I have some Rputerboard and I can’t set IGMP Proxy work.
I send email to all mikrotik expert.
I contacto some person, but nothing.

The IGMP Proxy work fine?
Mi scenario is this:

1 PC with VLC streaming multicast to udp 224.0.23.10 (IP 192.168.7.254) on ether2 RB433AH
1 PC with VLC client receiv multicast in udp://@224.0.23.10:1010 (IP 192.168.6.254) on ether3 same RB.

IGMP Proxy enabled
Upstream eth2
Downstream eth3

MFC is automatic an the RB generated the entry correcto to the group and the Ethernet, but RB don’t forward the multicast traffic to the ether3.

Any Idea?
I don’t have anything in filter firewall.
I put the filters to accept UDP and Igmp packet.
I put the two interfaces on masquerade in nat.

I test all… but I can’t see anything because the multicast don’t pass ether2 to ether3…
 
aleksis
newbie
Posts: 25
Joined: Wed Apr 30, 2014 12:13 pm

Re: Ip-tv igmp or pim?

Tue Aug 05, 2014 10:35 am

To get things straight - after you have everything set up and the source and client running you have MFC entry for group 224.0.23.10 with source 192.168.7.254. Does the ether3 interface appears in active-downstream-interfaces list or the list is empty?

If the list is empty then you need to check if you are receiving igmp join from the client on ether3.
To quickly check this you can do:
/tool sniffer quick interface=ether3 ip-protocol=igmp
and see if there is some activity.
 
sasskass
Frequent Visitor
Frequent Visitor
Posts: 84
Joined: Wed Mar 15, 2006 4:39 pm

Re: Ip-tv igmp or pim?

Wed Aug 20, 2014 10:53 am

Might have three possible reasons:

1. addressing channels like 224.0.x.x is not good idea - try to stream 239.3.1.2:1234
2. on igmp proxy interface set alternate subnet 0.0.0.0/0
3. on the client side, the address must be written to the vlc like: udp://@239.3.2.1:1234


NB! And also check your connection tracking is enabled under the firewall

Aleksander