[clug] How do I set up DLNA with MythTV?

Eyal Lebedinsky eyal at eyal.emu.id.au
Wed Aug 11 23:34:45 MDT 2010


This is a burst, seen once every 5m from the TV:
-----------------------------------------
15:18:01.952410 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 301
15:18:01.981252 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 310
15:18:02.011069 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 357
15:18:02.040983 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 365
15:18:02.071087 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 367
15:18:02.100965 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 355
15:18:02.131007 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 311
15:18:02.160939 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 320
15:18:02.191107 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 377
15:18:02.220923 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 367
15:18:02.251034 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 301
15:18:02.281048 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 310
15:18:02.311178 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 357
15:18:02.341179 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 365
15:18:02.371178 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 367
15:18:02.400916 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 355
15:18:02.431122 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 311
15:18:02.460894 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 320
15:18:02.491053 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 377
15:18:02.521014 IP ef.eyal.emu.id.au.blackjack > 239.255.255.250.ssdp: UDP, length 367
-----------------------------------------

As is seen, packets get here (from the TV=ef) but I do not see any responses.
The mythtv log does not mention a connection either.

The switch is a basic "Repotec 8-port Gigabit Switch". Is a special feature
required to pass multicast traffic?

BTW, iptables is active with:
-----------------------------------------
Chain INPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     udp  --  anywhere             anywhere            udp dpt:domain
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:domain
ACCEPT     udp  --  anywhere             anywhere            udp dpt:bootps
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:bootps

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere            PHYSDEV match --physdev-is-bridged
ACCEPT     all  --  anywhere             192.168.122.0/24    state RELATED,ESTABLISHED
ACCEPT     all  --  192.168.122.0/24     anywhere
ACCEPT     all  --  anywhere             anywhere
REJECT     all  --  anywhere             anywhere            reject-with icmp-port-unreachable
REJECT     all  --  anywhere             anywhere            reject-with icmp-port-unreachable

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
-----------------------------------------

which I read as mostly open since I see (policy ACCEPT) and the REJECTs seem
out of reach. Flushing the chains makes no difference.

cheers

On 12/08/10 14:58, tridge at samba.org wrote:
> Hi Eyal,
>
>   >  Does anyone use mythtv and watch their recordings (note: no music or
>   >  other video) os a DLNA enabled client? If so, what should I do to get
>   >  this working?
>
> yes, I use my PS3 to watch videos from 3 DLNA servers (mythtv,
> ps3mediaserver and mediatomb). All 3 worked without any special
> configuration that I can remember.
>
>   >  I can see UDP traffic from the TV (never back) but it does not show
>   >  a DLNA server. It does see my win7 machine server (when it is on).
>   >  My PS3 does not find the mythtv server either.
>
> What IP is that UDP traffic on? Is it perhaps multicast traffic? If
> so, is your router and Linux box setup to receive multicast traffic?
>
> Cheers, Tridge

-- 
Eyal Lebedinsky	(eyal at eyal.emu.id.au)


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