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sophos utm - Skype

Caiosilva

Good evening,

I'm having problems in the release of Skype. Sometimes it does not connect and sometimes it does not send messages. Already I realized several skips, but without success. Can someone help me.

Thank you.



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    I think you may have SSL scanning enabled in web proxy and this most likely causes the problem. I have created following exception list in the web filtering for Skype and it seems to work fine. List of IPsbased on Microsoft's official list of Skype for Business IP/URL. Hope this helps!

    Skipping: SSL scanning / Certificate trust check / Certificate date check
    Matching these URLs: ^https?://[A-Za-z0-9.-]*\.skype\.com/
    ^https?://157.55.*/
    ^https?://157.56.*/
    ^https?://65.52.*/
    ^https?://13.107.*/
    ^https?://23.101.*/
    ^https?://23.102.*/
    ^https?://23.103.*/
    ^https?://40.68.*/
    ^https?://40.78.*/
    ^https?://52.112.*/
    ^https?://65.55.*/
    ^https?://66.119.*/
    ^https?://104.40.*/
    ^https?://104.44.*/
    ^https?://111.221.*/
    ^https?://131.253.*/
    ^https?://132.245.*/
    ^https?://134.170.*/
    ^https?://191.233.*/
    ^https?://192.234.*/
    ^https?://207.46.*/

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    I think you may have SSL scanning enabled in web proxy and this most likely causes the problem. I have created following exception list in the web filtering for Skype and it seems to work fine. List of IPsbased on Microsoft's official list of Skype for Business IP/URL. Hope this helps!

    Skipping: SSL scanning / Certificate trust check / Certificate date check
    Matching these URLs: ^https?://[A-Za-z0-9.-]*\.skype\.com/
    ^https?://157.55.*/
    ^https?://157.56.*/
    ^https?://65.52.*/
    ^https?://13.107.*/
    ^https?://23.101.*/
    ^https?://23.102.*/
    ^https?://23.103.*/
    ^https?://40.68.*/
    ^https?://40.78.*/
    ^https?://52.112.*/
    ^https?://65.55.*/
    ^https?://66.119.*/
    ^https?://104.40.*/
    ^https?://104.44.*/
    ^https?://111.221.*/
    ^https?://131.253.*/
    ^https?://132.245.*/
    ^https?://134.170.*/
    ^https?://191.233.*/
    ^https?://192.234.*/
    ^https?://207.46.*/

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