This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

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?



This thread was automatically locked due to age.
Parents
  • Hi Adrian and welcome to the UTM Community!

    I can imagine that using Web Filtering in Transparent mode might be an issue - are you seeing blocks in that log?  If not, then check the Firewall and Intrusion Prevent logs.  Any luck?

    Cheers - Bob

     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • Hi Bob, no I'm not seeing blocks in the log.  The UTM is in routing mode, Nating and filtering is not transparent.  Cheers I'll check the intrusion logs...

     

    I issue is only with Google Android RCS not Apple iMessage as it works fine.

Reply Children