Hello,
I'm new to this list, and hope to find some help. :-)
Before writing here, I've searched the archive but found nothing
similar: I'm having problems configuring multiple relays on DSS.
It seems that only one can work at a time.
The sources are two live IP cameras (with RTSP server built in) which
both work well when enabled one at a time in RelaySettings. I've
configured them via web interface as "Request Incoming Stream" with no
user no passwd. Destination is announced UDP to the same local DSS
(172.31.77.100) or another one (172.31.77.122).
When I enable the first relay (say A) it works.
Then I enable the second relay (say B), it does NOT work, it always
states "0 bytes relayed" in Relay Status page (while A keeps on
working):
-----
Connected Relays Sun, 0. Jan 1900 00:00:139904828
Relay Name Source Destination Bit Rate
Bytes Relayed
A 172.31.77.99 172.31.77.122
39.621Kbps 19.900 MB
B 172.31.77.101 172.31.77.100 0 bps
0 Bytes
-----
This is strange, since with an ethereal capture I can see all the
RTSP/RTP/RTCP traffic coming from the camera, I can see no significant
difference between the relay which works and the relay which does not
work. In fact, if I enable first B and then A, B works and A doesn't;
this makes me think that my relays configs are correct.
-----
Connected Relays Sun, 0. Jan 1900 00:00:139892888
Relay Name Source Destination
Bit Rate Bytes Relayed
A 172.31.77.99 172.31.77.122 0 bps
0 Bytes
B 172.31.77.101 172.31.77.100
17.861Kbps 190.727 KB
-----
As you should see from the above pseudo-screenshot, the problem is the
same, only the first enabled relay works.
Analyzing the snoop, I've seen that Darwin Server uses the same RTP/
RTCP
local pair of ports to receive packets from both the sources, but I
don't think this is the problem, since Darwin should be able to
distinguish the streams since they come from different source IP
addresses, different source UDP ports and with different SSRC in RTP
Header.
I've got three installations of DSS (5.5.1):
-compiled from source with ./buildtarball on two linux machines
-installed from binary on a win32 machine
I've tried most of the possible combinations to have them work, but
without success.
I can't believe that DSS supports only one live relay at a time, so I
think I'm doing something wrong, but I'm clueless.
Any hint?
Thanks,
Claudio
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