When traffic does not match a policy that includes a VOIP security profile and VOIP mode is set to proxy-based.

SIP ALG is used regardless of the VOIP modes set under system settings (VOIP security profile requires the firewall policy to be in proxy-based inspection mode).

If traffic matches a policy that includes a VOIP security profile as shown below.

SIP ALG is used in the following conditions: SIP ALG and SIP session helper SIP pinholes SIP. Configuring the VIP to access the remote servers. Configuring the VPN overlay between the HQ FortiGate and cloud FortiGate-VM.

SIP ALG is used when the firewall is processing VOIP traffic in proxy-based mode. Configuring the VPN overlay between the HQ FortiGate and AWS native VPN gateway.

Xoá SIP ( ây vi phiên bn tôi s dng SIP có s th t 13, nó có th v trí khác tu vào phiên bn) delete 13 end.

A SIP session helper is used when the firewall is processing VOIP traffic in kernel-helper-based.Īn SIP session helper is used when traffic does not match a policy that includes a VOIP security profile and the VOIP mode is set to kernel-helper-based. Tìm v trí SIP trên session-helper config system session-helper show.

Kernel-helper-based: Use the SIP session helper. Proxy-based: Use a default proxy-based VoIP ALG. Use the following CLI command to review the VOIP mode: See the FortiGate documentation page for an explanation of these settings.

The following VoIP modes are available on the FortiGate firewall: In this example, SIP phones on the internal network use IPv4, and the SIP server on an external network uses IPv6.

A mix of IPv4 and IPv6 networks can use SIP ALG, allowing for proper call handling. This article explains the recommended scenarios to use each VoIP mode that is available on a FortiGate firewall. NAT46 and NAT64 are supported for SIP ALG.

Disable sip alg fortigate