There was a change in the FortiGate firmware that changed the default behavior for SNAT and ports. Well worth the 2-hour call.Įdit 4: Hopefully the final update! The fix was actually to enable "fixedport" on the policies that were routing our UDP/STUN traffic. This is definitely an issue with 6.4.7 and I have a submitted a ticket with packet captures to FortiNet.Įdit 3: We found the issue! The solution was to enable “permit-stun-host” on the appropriate firewall policies. Also the Inspection Mode must be set to Proxy-based on the System Information dashboard widget. Thanks again!Įdit 2: We updated to 6.4.7 again. Before you begin to configure VoIP security options, including SIP, from the web-based manager you should go to System > Feature Select and turn on VoIP (under Additional Features ). Definitely appreciate the help disabling SIP ALG/Session Helper. However, I see the issues at Bandwidth are also pretty much resolved (minus Verizon inbound calls at this moment). We rolled back to 6.4.5 and things are running smoothly again. So.anyone else have a similar story? Were you able to resolve it? We plan to roll back to 6.4.5 since that was the last version we were stable on.Įdit: Thank you everyone for your comments and support. Our users behind the firewall are the only people having this issue. The calls are connecting/able to be answered and the call recordings did capture audio from the caller. Now our users are experiencing calls with no audio coming in or going out, both inbound and outbound calls. Everything was running great until this update. We use a cloud phone system (Sharpen, their telco is Bandwidth). I am lost as to what could cause this and hope someone can relate to this. Sharing dumps violates a reddit global rule and may result in a site-wide ban. Posting brain or answer dumps for Fortinet certifications is prohibited as they are copyrighted material.
#FORTINET DISABLE SIP ALG HOW TO#
Tim Beard 15 subscribers Share 6.9K views 1 year ago This is a quick video showing how to disable SIP helpers on a Fortinet. What you have already tried as part of your troubleshooting process 0:00 / 1:18 Disabling SIP ALG on Fortigate 6.2.2 and above. To Disable SIP ALG follow the below steps Backup your firewall config first For FortiOS 6.2.2 and above config system settings set sip-expectation disable set sip-nat-trace disable set default-voip-alg-mode kernel-helper-based end For FortiOS below 6.2.2 ( 6.2.0 down to 5.2.
#FORTINET DISABLE SIP ALG SOFTWARE#
Next, please provide us as much information about your problem as you possibly can. If you're having a problem with a Fortinet product, first, make sure you submit your request to Fortinet TAC if you have a valid support contract.
Here you can ask for help, share tips and tricks, and discuss anything related to Fortinet and Fortinet Products. You will need to verify it is disabled to prevent just Polycom phones from experiencing intermittent DNS lookup timeouts. DNS relay/proxy is disabled by default but it can be enabled. Therefore, that setting needs to be disabled. RTP processing causes call and fax audio issues. Fortinet is a global leader and innovator in Network Security. SIP ALG is enabled by default, but it can be disabled.
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