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App-ID - ms-rdp not allowed, traffic being blocked as cotp

L1 Bithead

Hi All,

 

Were running 7.1.14. 

Ive created a rule to allowed ms-rdp to the rule. Ive checked first if ms-rdp has any dependencies, there is none. It implicitly uses cotp and t.120.

 

So from what i understand from the meaning of Implicitly uses, i only need to allow the main application which is ms-rdp and in turn it will allow implicitly cotp and t1.20. When we did our RDP testing the traffic got blocked with a policy-deny with an application of cotp. Ive added cotp to the rule and the connection worked on upon logging at session end its seeing it as ms-rdp.

 

So im not sure whether my understanding of the "Implicitly uses" is wrong or is there something else im missing out here.

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