Apple TV and port 49152

Question

Level 1

16 points

Apple TV and port 49152

I have just had my 160GB ATV upgraded to 320GB.

All set up again, but as I now have to sync my iTunes library to my ATV again, I thought that I would do it by ethernet as it would be faster than wifi.
However, when I try it, I get the message that I need to "make sure that port 49152 is open" in my firewall. The thing is, the firewall on my mac is open already, as I rely on the firewall in my router.

Any ideas? Also, how do I check that this firewall is open?

27" iMac, Mac OS X (10.6.4)

Posted on Aug 3, 2010 7:14 AM

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Answer 1

Chenks

Level 5

7,435 points

Aug 3, 2010 7:20 AM in response to billyg

is port 49152 open on your router?
i assume you have connected the ethernet cable to your router and not direct to the mac ?

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Answer 2

capaho

Level 4

3,673 points

Aug 3, 2010 7:51 AM in response to billyg

I have just had my 160GB ATV upgraded to 320GB.

Which is an unsupported mod. How did you get the ATV OS back on the ATV? That could be the source of the problem.

I get the message that I need to "make sure that port 49152 is open" in my firewall.

What application gave you that error message? That is an unassigned port number in a range that is usually used to receive requested data once a connection has been established with another device. It is not one of the ports required by iTunes or the ATV.

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Answer 3

Chenks

Level 5

7,435 points

Aug 3, 2010 7:57 AM in response to capaho

capaho wrote:
It is not one of the ports required by iTunes or the ATV.

according to http://support.apple.com/kb/TS1447 it is in some cases.

Note: If you use "fast user switching" on a Mac with firewall enabled you'll need to enable additional ports to allow streaming to Apple TV. If you don't, only the first user will be able to stream to Apple TV. For one additional user enable TCP port 49152. For each additional user, open the next incremental port (49153 for three users, 49154 for four users, 49155 for five users, etc.).

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Answer 4

capaho

Level 4

3,673 points

Aug 3, 2010 8:12 AM in response to Chenks

Those port numbers are in the unassigned range per the IANA port registry, and there is no easy way to enable specific ports in OS X without using third-party software like Little Snitch or using the terminal or a shell script to add the ports to the ipfw rules as needed.

The error message the OP reported is unusual and further information for clarity would be helpful. I suspect the problem is related to the hard disk "upgrade" on the ATV and the subsequent re-install of the ATV OS.

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Answer 5

Chenks

Level 5

7,435 points

Aug 3, 2010 8:19 AM in response to capaho

capaho wrote:
and there is no easy way to enable specific ports in OS X without using third-party software like Little Snitch or using the terminal or a shell script to add the ports to the ipfw rules as needed.

maybe you should look at http://support.apple.com/kb/TS1447 before saying what did (being an ambassador of correct info afterall).

it shows you how to assign 49152.

also, if you look here http://support.apple.com/kb/ts1629 it lists the know TCP and UDP ports used by apple products. scroll down to 49152 and see what it says.

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Answer 6

capaho

Level 4

3,673 points

Aug 3, 2010 8:21 AM in response to Chenks

it shows you how to assign 49152.

Nonetheless, that is an unusual problem in relation to the ATV. How many times have you seen it come up in this forum over the years? The fact that it follows a hard drive "upgrade" is the most significant factor, IMHO.

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Answer 7

Chenks

Level 5

7,435 points

Aug 3, 2010 8:27 AM in response to capaho

capaho wrote:

it shows you how to assign 49152.

Nonetheless, that is an unusual problem in relation to the ATV. How many times have you seen it come up in this forum over the years? The fact that it follows a hard drive "upgrade" is the most significant factor, IMHO.

i suspect that's the closest to a retraction of your incorrect info we are going to get 🙂

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Answer 8

capaho

Level 4

3,673 points

Aug 3, 2010 8:45 AM in response to Chenks

i suspect that's the closest to a retraction of your incorrect info we are going to get

My comments in relation to the OP's problem are relevant and appropriate. I would suggest that you read them again, but I suspect your replies to my comments are not really intended to be helpful. It's a pity the hosts continue to tolerate such stereotypical hooliganism.

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Answer 9

billyg Author

Level 1

16 points

Aug 3, 2010 11:48 AM in response to billyg

FYI..I had the upgrade done in a Mac repair specialist's. It is quite a common upgrade. You can see that on the net that a lot of people do it.
They said that all they did was replace the HD with the bigger one (320Gb) that I supplied, and cloned the ATV software partition onto it using ATV Cloner. I just connected to power, and TV (HDMI), and it started OK, then asked me to enter the password for my WiFi, then the 5 digit code in iTunes to pair it. All went OK.

It was actually syncing by wifi, but as my old 160Gb was full, I thought it would take ages, and decided to connect via ethernet cable.
The first time, I connected to my Netgear router, and got the message about port 49152. I then connected directly to my iMac, and got the same message.

It has been running all afternoon, syncing by WiFi, and only synced nine films 13Gb, so I just tried connecting once more through my router.
It now says that it is syncing, "Copying 1 of 5805", but the capacity at the bottom of the iTunes page, where it says Video, Audio, Other, Free, does not seem top be increasing. In the side column the download wheel is turning next to the ATV. I have not changed any settings since my earlier post, and am not sure if it has resolved itself.
I shall wait, and see what happens, and report back here later.

In the meantime, thanks for any help / advice given.

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Answer 10

capaho

Level 4

3,673 points

Aug 3, 2010 6:32 PM in response to billyg

You can try allowing the ports as per the previously linked technical document, and make sure your router is also allowing traffic on those ports, but that is an unusual requirement for the ATV to work.

If you're not getting any data transfer, the packets are probably being dropped by the OS X firewall. You can check the ipfw log in the Console and see if that's the case.

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Answer 11

billyg Author

Level 1

16 points

Aug 6, 2010 12:31 PM in response to billyg

Update. I don't know how or why, but the problem seems to have corrected itself. It now syncs Ok via ethernet.

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Answer 12

Alley_Cat

Level 7

20,548 points

Aug 6, 2010 2:44 PM in response to billyg

billyg wrote:
FYI..I had the upgrade done in a Mac repair specialist's. It is quite a common upgrade. You can see that on the net that a lot of people do it.

AppleTV is not officially upgradeable, so any upgrade is done using non-Apple supported methods at your own risk, and that's up to you if you want to go that route of course. I'm sure that most of the time this sort of thing works fine, it's just not officially supported and therefore details can't be discussed here.

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