VoIP Clients with FortiGates
(2017-01-11)
Then reboot the firewall in order for all the above changes to take effect
Reddit:
The first should be blank, and the second should return an error:
Problem
VoIP Clients with FortiGatesSolution
Disable the SIP ALGconfig system settings set sip-helper disable set sip-nat-trace disable end config system session-helper show (locate the SIP entry, usually 13, but can vary) delete 13 (or the number that you identified from the previous command) end config system settings set default-voip-alg-mode kernel-helper-based end​
Alternatively
...a cheatsheet I found onReddit:- remove SIP, RAS, and H323, usually by: config system session-helper delete 13 delete 3 delete 2 end- disable sip helper and nat trace config system settings set sip-helper disable end set sip-nat-trace disable end end- edit voip profile config voip profile edit default config sip set status disable end end- Flush ARP cache execute clear system arp table- nuclear option, reset all sessions diagnose sys session clear
Bonus
Verify SIP ALG is off using these commands:d sys sip mapping d sys sip-proxy calls
sip calls Could not connect to imd monitor on /tmp/imd_monitor_socket
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