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Sophos UTM blocking IP RCS traffic?

Hi all,

Sophos UTM version 9.605-1

Has anyone noticed RCS mobile features designed to replace SMS over high speed networks such as IP are being blocked by the sophos UTM.

I have tested this by replacing the UTM also acting as PPPoE for the VDSL authentication function with the ISP standard router.  With the standard router the RCS features started working again.

RCS uses; SIP, HTTP/HTTPS and MSRP.

It appears that RCS uses a usual protocol stacks - however, digging about in the UTM logs I can't find what is blocking the RCS - everything appears normal in the logs with SIP/HTTP/HTTPS making the connection. However, RCS fails.  The UTM must be block the TCP/IP in some way.

RCS Reading;

https://jibe.google.com/

https://www.gsma.com/newsroom/press-release/global-operators-google-and-the-gsma-align-behind-adoption-of-rcs/

http://www.diva-portal.org/smash/get/diva2:861973/FULLTEXT01 

I'm wondering has anyone else noticed this behaviour?  And could sophos throw some light on this please?



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  • Oh nice one Bob!  Thank so much.

     

    Cheers I'll have a google about for ESXi7 - however, I noted only ESXi6.7 is supported sophos for VM appliances for VMware hypervisors. 

     

    With regards to UTM version breaking RCS traffic - I'll test the RCS traffic problem after each batch and see how it goes.

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