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Ftd 2110 and S4B clients

Hello, 

 

I have a pair of Firepower 2110 and in the network I use Skype for business.

I often have disconnections of the clients on the PCs. 

The clients communicate through internet to register. 

Sometimes this communication is not successful, so the client is not registered but it does not log the client off. 

 

From the S4B side, we see in the logs the following :

unrecoverable SA failure, signout

SA = SIP_AUTH

 

I would like to ask if the fmc or the firepower has any menu to disable sip inspection or is it only the rules? 

 

Thanks and regards, 

Konstantinos 

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VIP Advisor

Re: Ftd 2110 and S4B clients

You can configure this using FTD CLISH ' configure inspection sip disable'

or you can use flexconfig to push the cli to disable sip inspection part of
your general policy (which is preferred option)

Re: Ftd 2110 and S4B clients

Dear Mohammed, 

 

I have already a flex config policy, so I could just add the command you mentioned.

I will try it and let you know.

 

Thanks and regards, 

Konstantinos