# Does Wirecast need additional ports for live broadcasting?

**URL:** <https://community.wowza.com/t/does-wirecast-need-additional-ports-for-live-broadcasting/341>\
**Category:** Wowza Streaming Engine\
**Created:** [January 13, 2011, 5:10pm UTC](https://community.wowza.com/t/does-wirecast-need-additional-ports-for-live-broadcasting/341 "2011-01-13T17:10:26Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![system](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/system/32/447_2.png) [@system](https://community.wowza.com/u/system)\
**Post date:** [January 13, 2011, 5:10pm UTC](https://community.wowza.com/t/does-wirecast-need-additional-ports-for-live-broadcasting/341/1 "2011-01-13T17:10:26Z")

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Hello,

we are using Wirecast to broadcast Flash RTMP streams to Wowza server with the default 1935 port.

Next week we will broadcast an event from the office of a paranoid enterprise. I know that they have strict firewall rules which are managed by their headquarters abroad. Thus, I should ask them to request the opening of specific ports as soon as possible.

Is it enough to open the port 1935 from the office to the server? Or does Wirecast need more ports for return etc?

best regards,

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**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\
**Post date:** [January 13, 2011, 5:26pm UTC](https://community.wowza.com/t/does-wirecast-need-additional-ports-for-live-broadcasting/341/2 "2011-01-13T17:26:29Z")

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Port 1935 should be all you need, but test of course. Some corporate firewalls block rtmp on any port.

Richard

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**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\
**Post date:** [January 13, 2011, 5:33pm UTC](https://community.wowza.com/t/does-wirecast-need-additional-ports-for-live-broadcasting/341/3 "2011-01-13T17:33:20Z")

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Yes, RTMP is a two way protocol.

Richard

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<div class="post-metadata">

**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\
**Post date:** [January 13, 2011, 6:04pm UTC](https://community.wowza.com/t/does-wirecast-need-additional-ports-for-live-broadcasting/341/4 "2011-01-13T18:04:14Z")

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Set up Wirecast following this guide:

[https://www.wowza.com/docs/how-to-use-telestream-wirecast-live-encoder-with-wowza-streaming-engine](https://www.wowza.com/docs/how-to-use-telestream-wirecast-live-encoder-with-wowza-streaming-engine)

Using Flash streaming (rtmp) instead of Quicktime (rtp)

Richard

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<div class="post-metadata">

**Author:** ![mmm\_mmm](https://avatars.discourse-cdn.com/v4/letter/m/e47774/32.png) [@mmm\_mmm](https://community.wowza.com/u/mmm_mmm)\
**Post date:** [January 13, 2011, 5:29pm UTC](https://community.wowza.com/t/does-wirecast-need-additional-ports-for-live-broadcasting/341/5 "2011-01-13T17:29:12Z")

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What about the return path? Does Wowza send anything to Wirecast?

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<div class="post-metadata">

**Author:** ![mmm\_mmm](https://avatars.discourse-cdn.com/v4/letter/m/e47774/32.png) [@mmm\_mmm](https://community.wowza.com/u/mmm_mmm)\
**Post date:** [January 13, 2011, 5:53pm UTC](https://community.wowza.com/t/does-wirecast-need-additional-ports-for-live-broadcasting/341/6 "2011-01-13T17:53:27Z")

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and, is Wowza using the same port number?

When I broadcast a stream from my Mac, I see the following lines as an output of **`sudo lsof -i -P |grep Wirecast`**

```auto
Wirecast 15022 mustafa 10u IPv4 0x0e338ef0 0t0 UDP *:63728
Wirecast 15022 mustafa 11u IPv4 0x0aa6b528 0t0 UDP *:61095
Wirecast 15022 mustafa 37u IPv4 0x0d9f9740 0t0 TCP MY_IP:58046->SERVER_IP:1935 (ESTABLISHED)

```

And every time I quit and start Wirecast, these UDP ports are changing.

Should these ports be opened too?

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<div class="post-metadata">

**Author:** ![mmm\_mmm](https://avatars.discourse-cdn.com/v4/letter/m/e47774/32.png) [@mmm\_mmm](https://community.wowza.com/u/mmm_mmm)\
**Post date:** [January 14, 2011, 2:23am UTC](https://community.wowza.com/t/does-wirecast-need-additional-ports-for-live-broadcasting/341/7 "2011-01-14T02:23:31Z")

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Yes, I am using RTMP Flash streaming and I have followed exactly these steps but I still see these UDP ports. The strage thing is, these ports appear on the list just as I start Wirecast (before starting the broadcast). When I quit Wirecast they disappear.