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Author Topic: Doremi ethernet ports
Richard May
Phenomenal Film Handler

Posts: 1057
From: Floral Park, NY USA
Registered: Aug 2004


 - posted 03-30-2012 09:24 PM      Profile for Richard May   Email Richard May   Send New Private Message       Edit/Delete Post 
I have a dcp2000. Port eth0 works fine. The NEC projector is hooked up to it. Port eth1 won't communicate with anything. The port lights when plugged in on both ends.....(solid orange, blinking green). The IP addresses seem ok on both ports. They are a few numbers apart. I tried to ping both ports. That worked. I extracted the diagnostic log and sent it to Doremi. They said both ports show active, no problems. I tried new cables. Running out od ideas.....

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 03-30-2012 09:59 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
What are the two IPs assigned and what is the submask?

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Richard May
Phenomenal Film Handler

Posts: 1057
From: Floral Park, NY USA
Registered: Aug 2004


 - posted 03-30-2012 10:05 PM      Profile for Richard May   Email Richard May   Send New Private Message       Edit/Delete Post 
Eth0 192.168.10.115
Sub mask 255.255.255.0

Eth1 192.168.10.116
Sub mask 255.255.255.0

I tried different IP's for Eth1 and still nothing.

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Scott Norwood
Film God

Posts: 8146
From: Boston, MA. USA (1774.21 miles northeast of Dallas)
Registered: Jun 99


 - posted 03-31-2012 12:26 AM      Profile for Scott Norwood   Author's Homepage   Email Scott Norwood   Send New Private Message       Edit/Delete Post 
Do you have an IP conflict with something else on the same network?

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 03-31-2012 12:36 AM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
The reason I asked is because I assumed you were doing something along those lines. GDC can't handle that IP scheme (first 3 octets being the same). It will cause all kinds of problems. I'm not sure if Doremi can handle it or not. Doremi specifically recommends different subnets for the different ports. Has anyone used Doremi in a networked environment using the same subnet like this?

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Jussi Siponen
Film Handler

Posts: 75
From: Mikkeli, Itä-Suomi, FINLAND
Registered: Jan 2010


 - posted 03-31-2012 07:49 AM      Profile for Jussi Siponen   Email Jussi Siponen   Send New Private Message       Edit/Delete Post 
Richard,

What you are doing is not going to work.

If you put subnet mask 255.255.255.0 on both interfaces and the Eth0 IP address is 192.168.10.115, then the IP address of Eth1 can not beging with

E.g. putting 192.168.11.115 on Eth1 would be OK.

That being said, the easiest way to accomplish what I assume you are trying to do is to get an Ethernet switch and plug in to *that* the Doremi Eth0, projector, sound processor etc.

(If Doremi does things at all like Dolby, then the Eth0 interface is likely meant for a local, "screen area" network and the Eth1 interface is meant for connecting to the house LAN.)

But just from the standpoint of how IP addressing & subneting works, putting two 192.168.10.xxx addresses on your server's network interfaces will not work with your current subnet mask.

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Dave Macaulay
Film God

Posts: 2321
From: Toronto, Canada
Registered: Apr 2001


 - posted 03-31-2012 08:02 AM      Profile for Dave Macaulay   Email Dave Macaulay   Send New Private Message       Edit/Delete Post 
I've never tried having the two ports on the same network segment, and there's no good reason to: the server only needs one connection to a network segment.
I'm not 100% certain but I think the server will bridge the two networks - if one is 192.168.1.1 and the other is 192.168.2.1, then you can ping a 192.168.1.xxx device from the 192.168.2.1 side. I can do this with the TMS networks I have installed but there's also a managed switch handling both networks (doing I-don't-know-what supplied through the VPF guys and password protected plus I don't know SFA about Cisco IOS and wouldn't know what it's doing even if I could read the setup files).
I've installed a bunch of TMS systems with a media network (content transfer) and a management network (the normal projector/server/automation/sound stuff) - with one on each server port - and the third IP address octets are always different. But they use a 255.255.254.0 netmask as well...

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 03-31-2012 08:34 AM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
I can confirm that Jussi is right. IP families must be different even though I believe ETH1 is supposed to be connected to the auditorium network. Not a big deal, I think it's just a matter of speed. You can connect your gear in any order and it should work.

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Pete Naples
Phenomenal Film Handler

Posts: 1565
From: Dunfermline, Scotland
Registered: Feb 2001


 - posted 03-31-2012 12:45 PM      Profile for Pete Naples   Email Pete Naples   Send New Private Message       Edit/Delete Post 
Doremi is OK if the subnet masks on both ports are the same, this is how XDC require equipment to be addressed, for uniformity and for NAT purposes back to their NOC.

However, they don't have the first three octets matching, they do;
172.20.2x.y1 for 'auditorium' network where x = screen Nº and y = kit, eg server =1, projector =2 etc

and

172.30.2x.11 for the 'theatre' side of the server.

Both on 255.255.0.0

But yup, manufacturers don't recommend running both networks on the same subnet as rule of thumb.

I've never successfully and reliably managed to get a Doremi to route between the two networks, Dolby on the other hand so this out of the box.

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 03-31-2012 03:08 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Pete,

I think you need to install the IP forward package, it's an optional one you can find on doremi FTP. It is not installed as a standard.

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Pete Naples
Phenomenal Film Handler

Posts: 1565
From: Dunfermline, Scotland
Registered: Feb 2001


 - posted 04-01-2012 05:36 AM      Profile for Pete Naples   Email Pete Naples   Send New Private Message       Edit/Delete Post 
Good tip, thanks Marco.

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Richard May
Phenomenal Film Handler

Posts: 1057
From: Floral Park, NY USA
Registered: Aug 2004


 - posted 04-01-2012 03:33 PM      Profile for Richard May   Email Richard May   Send New Private Message       Edit/Delete Post 
Sorry for the delay. I've been out all weekend. There is no network hooked up. The only thing hooked up to ETH0 is the NEC projector. I will try changing those IP numbers like suggested.

My other question was going to be whether or not I could just hookup the Doremi, projector, and automation controller to a network switch like someone suggested.

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Pietro Clarici
Expert Film Handler

Posts: 136
From: Foligno (PG) Italy
Registered: Sep 2008


 - posted 04-01-2012 05:14 PM      Profile for Pietro Clarici   Author's Homepage   Email Pietro Clarici   Send New Private Message       Edit/Delete Post 
Our Doremi servers all have this configuration:

eth0: 192.168.0.x3, sub 255.255.255.0
eth1: 192.168.0.x4, sub 255.255.255.0

(x is the auditorium number)

That being said, only eth0 is actually used, connected to a separate GigE switch for each screen. Projector (.x1 and .x2), JNIOR (.x5), CP650/750 (.x6) and a wireless AP (.x0) are all on the same network, and even though we don't have a TMS, the booth switches are hooked up to a central switch. This allows use to move content and have a single control point which is a basic PC running VNC, NEC and Dolby software. If needed, we can then connect to that machine via VNC (we usually use iPads), and fine tune projectors directly from the auditorium.

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Richard May
Phenomenal Film Handler

Posts: 1057
From: Floral Park, NY USA
Registered: Aug 2004


 - posted 04-01-2012 07:32 PM      Profile for Richard May   Email Richard May   Send New Private Message       Edit/Delete Post 
I think a network switch will be the easiest way at this point. Can I just get a cheap, basic switch?

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David Buckley
Jedi Master Film Handler

Posts: 525
From: Oxford, N. Canterbury, New Zealand
Registered: Aug 2004


 - posted 04-01-2012 09:08 PM      Profile for David Buckley   Author's Homepage   Email David Buckley   Send New Private Message       Edit/Delete Post 
quote: Richard May
I think a network switch will be the easiest way at this point. Can I just get a cheap, basic switch?
Sure. But if ETH0 is just connected directly to the projector then just changing to a different subnet (e.g. 192.168.2.whatever) will be cheaper.

The confusion is due to the two ports being assigned to the same subnet and being connected to two different places (ie the two ports dont connect to the same network). Fix either issue and all will be well.

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