IPTV and IGMP Proxy problems

baryon · Dec 11, 2010, 8:11 PM

Hello,

I'm wondering if anyone could help me setup IPTV, or give a points to what I'm doing wrong?

So far, I have been reading, and trying to get IPTV to work with pfSense (snapshot embedded i386; pfSense-2.0-BETA4-4g-20101210-2038-nanobsd.img.gz), without any results. Only way so far to get it to work is by directly connecting the IPTV box directly to the modem.

The last setup I tried was:

Inside Firewall>Rules

WAN
Proto: IGMP
Source: *
Destination: *
Enabled option "This allows packets with IP options to pass … " under "Advanced Options".

LAN
Edited the "Default allow LAN to any rule" to also have "This allows packets with IP options to pass … " option.

Inside Services>IGMP Proxy I have added

Name: WAN
Type: upstream
Threshold: empty
Values: 224.0.0.0/4

Name: LAN
Type: downstream
Threshold: empty
Values: 192.168.0.0/24

Information taken from service providers website

For IPTV to work IGMP Proxy needs to be enabled. Source, in finnish, http://www.elisa.fi/asiakastuki/700.3/elisa-viihde/7953/erillisen-adsl-modeemin-tai-reitittimen-kayttaminen/ .
Addresses 224.0.0.22, 224.0.0.252, 224.0.0.253, 224.0.1.60 and 239.255.255.250 needs to be allowed to send packages. Source, also in finnish, http://palsta.elisa.fi/index.php/topic,660.msg10681.html#msg10681 .

As far as I know, mask 224.0.0.0/4 should cover these addresses.

baryon · Dec 13, 2010, 7:51 AM

After a lot of head scratching I finally managed to get it to work. I'll post the settings I used, in case someone reads this post later and possibly find them useful.

Services>Rules: WAN
Proto: UDP
Source: *
Source Port: *
Destination: 224.0.0.0/4
Destination Port: *

Services>Rules: LAN
Modify the "Default allow LAN to any rule" and enable the option "This allows packets with IP options to pass. Otherwise they are blocked by default. This is usually only seen with multicast traffic.". It is found under "Advanced Options" near the bottom of the page, when editing this rule.

(The next rule is specific for my service provider and can be skipped if your service provider doesn't have a similar service. In my case it provides access to the Warner Films channel.)
Services>NAT: Port Forwarding
Proto: UDP
Src. addr: *
Src ports: *
Dest. addr: WAN address
Dest. ports: 8254
NAT IP: <ip of="" iptv-box="">NAT Ports: 8254

Services>IGMP Proxy
Here I made two rules. One for upstream and one for downstream traffic.

Upstream
Name: WAN
Type: upstream
Threshold: <empty>Values: 224.0.0.0/4, 195.238.200.0/24 (*the second address mask specific to my service provider. See note below.)

Downstream
Name: LAN
Type: downstream
Threshold: <empty>Values: 192.168.0.0/24 (This is the subnet mask of my internal network. Change it to what you use.)

Notes
The second subnet mask I specified for the upstream is the net from where the data stream is coming from, in my case. Without this I get nothing but a black screen.

To debug what was going on, I ssh'd to my pfSense box and ran igmpproxy from the command line:

igmpproxy -d -c /tmp/igmpproxy.conf

After switching to an IPTV channel I noticed the following warning coming from igmpproxy:

Warn: The source address 195.238.200.2 for group 239.192.105.14, is not in any valid net for upstream VIF.

I checked the IP and turns out my service provider own the 195.238.200.0/24 network. After adding it to my upstream settings, I was able to watch tv.

For reference, I am using "Elisa Viihde", a Finnish IPTV solution.

pfSense version that I'm using is 2.0-BETA4 (i386) built on Fri Dec 10 20:38:22 EST 2010 running on a PC Engines ALIX 2D3 board.

Posts I found useful
http://forum.pfsense.org/index.php/topic,16943.msg113914.html#msg113914
http://forum.lissyara.su/viewtopic.php?f=3&t=17080#p158230 (in Russian)</empty></empty></ip>