# I need help with configuration multicast in server with two network interface

**URL:** <https://community.wowza.com/t/i-need-help-with-configuration-multicast-in-server-with-two-network-interface/45956>\
**Category:** Wowza Streaming Engine\
**Created:** [September 11, 2015, 7:37pm UTC](https://community.wowza.com/t/i-need-help-with-configuration-multicast-in-server-with-two-network-interface/45956 "2015-09-11T19:37:13Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![irrevere\_radio](https://avatars.discourse-cdn.com/v4/letter/i/a4c791/32.png) [@irrevere\_radio](https://community.wowza.com/u/irrevere_radio)\
**Post date:** [September 11, 2015, 7:37pm UTC](https://community.wowza.com/t/i-need-help-with-configuration-multicast-in-server-with-two-network-interface/45956/1 "2015-09-11T19:37:13Z")

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Currently I have a server with two network cards, the first is connected to a network that provides access to a multicast and the second card is a public IP address from which you can consult online. I was trying to set up a live streaming service, but I want to play it generates the following error: “Source file or stream Could not be found or access was denied.”.

Any idea why the streaming is not successful?

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**Author:** ![Andrew\_Ramberg](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@Andrew\_Ramberg](https://community.wowza.com/u/Andrew_Ramberg)\
**Post date:** [September 12, 2015, 6:18pm UTC](https://community.wowza.com/t/i-need-help-with-configuration-multicast-in-server-with-two-network-interface/45956/2 "2015-09-12T18:18:16Z")

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Hello,

If you’re trying to pull a multicast stream into Wowza Streaming Engine on a server with dual network interface’s, you’ll want to specify which interface should be used to listen for multicast streams. The following [article](https://www.wowza.com/docs/how-to-listen-for-a-multicast-stream-on-a-particular-network-interface) describes how to specify the multicast ingest interface.

You will also need to [configure a .stream file](https://www.wowza.com/docs/how-to-create-and-use-stream-files-in-wowza-streaming-engine-manager) to connect Wowza Streaming Engine to your multicast stream.

Best regards,

Andrew

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**Author:** ![Andrew\_Ramberg](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@Andrew\_Ramberg](https://community.wowza.com/u/Andrew_Ramberg)\
**Post date:** [September 24, 2015, 7:48am UTC](https://community.wowza.com/t/i-need-help-with-configuration-multicast-in-server-with-two-network-interface/45956/3 "2015-09-24T07:48:26Z")

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Hello,

Which operating system are you using on the server? There’s a configuration change required on some CentOS version 6 and newer releases when using multiple routing paths. Please see the following [information](https://access.redhat.com/solutions/53031) for details:

If you still have issues, please open a ticket with our Support Team.

Attach a copy of the following directories to your email:

[install-dir]/conf

[install-dir]/logs

Best regards,

Andrew

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**Author:** ![irrevere\_radio](https://avatars.discourse-cdn.com/v4/letter/i/a4c791/32.png) [@irrevere\_radio](https://community.wowza.com/u/irrevere_radio)\
**Post date:** [September 14, 2015, 12:44pm UTC](https://community.wowza.com/t/i-need-help-with-configuration-multicast-in-server-with-two-network-interface/45956/4 "2015-09-14T12:44:30Z")

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configure the 2 files as in the examples but the message remains “Source stream or file Could not be found or access was denied.” .

Any ideas ?