| Description | This article explains the usage of Wireshark to help view or understand the VOIP flow. |
| Scope | FortiGate. |
| Solution |
Once the packet for VOIP is captured using the sniffer, a similar output as below will be get:
For example:
# diagnose sniffer packet any 'host x.x.x.x and port xyz' 6 0 l
Port is the port number used for VOIP traffic eg: 5060 or can also be any custom port.
Next, select 'Telephony' tab on the menu bar and select VOIP calls:
A new window opens as per below select a packet and then select 'Flow sequence':
The Flow sequence of the VOIP packet traffic as per below:
This is a useful tool that can help in understanding the SIP packet flow process.
Alternatively, FortiGate GUI can also be used to perform the packet capture as per below:
On versions 7.2.X and above.
On versions below 7.2.x:
 |
