# RTSP device behind the NAT

**URL:** <https://community.wowza.com/t/rtsp-device-behind-the-nat/35226>\
**Category:** Wowza Streaming Engine\
**Created:** [August 11, 2010, 3:19pm UTC](https://community.wowza.com/t/rtsp-device-behind-the-nat/35226 "2010-08-11T15:19:14Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Shoichi\_Watanabe](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@Shoichi\_Watanabe](https://community.wowza.com/u/Shoichi_Watanabe)\
**Post date:** [August 11, 2010, 3:19pm UTC](https://community.wowza.com/t/rtsp-device-behind-the-nat/35226/1 "2010-08-11T15:19:14Z")

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Hi,

Is this possible for wowza to feed the stream then to re-stream from the RTSP device (such as IP camera) which is behind the NAT.

Best Regards

Watanabe.

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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:** [August 11, 2010, 11:42am UTC](https://community.wowza.com/t/rtsp-device-behind-the-nat/35226/2 "2010-08-11T11:42:43Z")

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You need connectivity between the two servers on port 554. If you can enable that, then yes

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:** [August 12, 2010, 1:13am UTC](https://community.wowza.com/t/rtsp-device-behind-the-nat/35226/3 "2010-08-12T01:13:35Z")

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No, Wowza doesn’t have such functionality. Wowza uses the ports you specify or that are the default for the protocol you are using. Port 554 is the default rtsp port.

You have to ensure that no firewall blocks the ports you use. Or the ports are passed thru from lan to internet properly. The network admin has to do that.

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:** [August 12, 2010, 6:25pm UTC](https://community.wowza.com/t/rtsp-device-behind-the-nat/35226/4 "2010-08-12T18:25:35Z")

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If you use port 80 you will probably have more success than with port 1935. Add port 80 to /conf/VHost.xml /HostPort /Port “1935”. Change that to “1935, 80”. Then use port 80 to connect to Wowza:

> rtmp://[wowza-address]:80/[appName]

Richard

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**Author:** ![Shoichi\_Watanabe](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@Shoichi\_Watanabe](https://community.wowza.com/u/Shoichi_Watanabe)\
**Post date:** [August 12, 2010, 8:44am UTC](https://community.wowza.com/t/rtsp-device-behind-the-nat/35226/5 "2010-08-12T08:44:18Z")

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To connect port is not the functionality of Wowza? It seems wowza has some functionality of traversing NAT if wowza is behind the NAT. In similar way I am looking for how to traverse NAT from RTSP device side. Some advice please.

Best Regards

Watanabe.

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<div class="post-metadata">

**Author:** ![Shoichi\_Watanabe](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@Shoichi\_Watanabe](https://community.wowza.com/u/Shoichi_Watanabe)\
**Post date:** [August 12, 2010, 2:19pm UTC](https://community.wowza.com/t/rtsp-device-behind-the-nat/35226/6 "2010-08-12T14:19:02Z")

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Thanks Richard.

What I want to do is to publish stream from the place like Wifi free-spot where I can not access IP admin or router. If the wowza server runs on my PC connected to the RTSP device, it is still impossible? Skype or Ustream can traverse NAT but Wowza cannot?

Best Regards

Watanabe