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HP Recommended

Hi there,

 

I have noticed an issue with BFCP Content Sharing when traversing the RPAD.

 

In the official documentation from Polycom it states that you only need to open outbound RTP traffic in one direction 

 eg. from the RMX Media IP > RPAD Internal NIC in the example of the MCU.

 

However I have found that BFCP does not work when traversing the RPAD. If you connect via RealPresence Desktop you cannot even press the content button at all via the Internet. After testing further this appears to be because when an inbound call comes into the RPAD we see the client tries and make an inbound UDP connection to the media port range of the RMX via the RPAD. This is obviously denied as the traffic must initiate from the RMX first and then the stateful reply is granted, and this in my view appears to break the BFCP component of the call.

 

After we opened up the RPAD > RMX Media IP in the opposite direction for media range we are now able to get BFCP to work when traversing the RPAD and can press the content button and share content.

 

Can Polycom confirm they have tested BFCP through the RPAD when landing a call on the RMX1500? and if so why is this issue occuring?

 

Note this issue is only exhibited with BFCP, H323 content sharing works.

1 ACCEPTED SOLUTION

Accepted Solutions
HP Recommended

Hi there,

 

If anyone has this problem where they cannot send SIP content. This is the fix.

 

  1. Ensure on your RMX you setup the following system flag with a value of 3.

    Flag : NUM_OF_INITIATE_HELLO_MESSAGE_IN_CALL_ESTABLISHMENT
    Value : 3

  2. Ensure that your meeting is setup on DMA or RMX Conference Profile with "FW NAT keep alive" ticked.

Now content for SIP BFCP should work through the RPAD with only the default firewall ports.

 

Thanks to Billy Jo from Polycom for working on this issue.


View solution in original post

2 REPLIES 2
HP Recommended

I am going to open a case on this since nobody has been able to respond.

HP Recommended

Hi there,

 

If anyone has this problem where they cannot send SIP content. This is the fix.

 

  1. Ensure on your RMX you setup the following system flag with a value of 3.

    Flag : NUM_OF_INITIATE_HELLO_MESSAGE_IN_CALL_ESTABLISHMENT
    Value : 3

  2. Ensure that your meeting is setup on DMA or RMX Conference Profile with "FW NAT keep alive" ticked.

Now content for SIP BFCP should work through the RPAD with only the default firewall ports.

 

Thanks to Billy Jo from Polycom for working on this issue.


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