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rolo
rolo
New Member
December 8, 2020
Solved

how to disable SIP ALG

  • December 8, 2020
  • 1 reply
  • 24333 views

hello, we have a fgt-40f. we also use voip and it looks like that SIP ALG blocks it. on web GUI i couldn't find anywhere to disable it. tried several forum but most of them are for old firmware current firmware is v6.2.5  can anyone send a configuration how to disable it ?

    Best answer by Toshi_Esumi

    As mentioned in the KB, it's the original/old/not-VDOM-based way to handle SIP sessions before they implemented ALG(proxy base). Both basically do the same, and in case you don't want a FW to tweak SIP sessions, you need to disable both.

    1 reply

    Toshi_Esumi
    SuperUser
    Toshi_Esumi
    SuperUser
    December 8, 2020

    It hasn't changed much since 5.2. Below KB is still current since it's mentioning about the minor CLI change since 6.2.2.

    https://kb.fortinet.com/kb/documentLink.do?externalID=FD36405

     

    rolo
    roloAuthor
    New Member
    December 8, 2020

    hi, thanks for replying. I've a question about session helper what it does and should i remove it too ? 

    Toshi_Esumi
    SuperUser
    Toshi_EsumiAnswer
    SuperUser
    December 8, 2020

    As mentioned in the KB, it's the original/old/not-VDOM-based way to handle SIP sessions before they implemented ALG(proxy base). Both basically do the same, and in case you don't want a FW to tweak SIP sessions, you need to disable both.

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