diff --git a/source/manual/diagnostics_interfaces.rst b/source/manual/diagnostics_interfaces.rst
index 2094bc64..39c77117 100644
--- a/source/manual/diagnostics_interfaces.rst
+++ b/source/manual/diagnostics_interfaces.rst
@@ -108,11 +108,54 @@ Packet capture
---------------------
The packet capture module can be used to deep dive into traffic passing a (or multiple) network interfaces.
-It has some options you can choose from, such as the interface to listen on, protocol you interested in and
-host to track.
+It has some options you can choose from, which are detailed below.
+
+==============================================================================================================================================
+
+=========================== ==================================================================================================================
+Interface List of interfaces to start a capture on. A tcpdump process is started on each selected interface
+Promiscuous When set, the system will capture all traffic present on the interface in stead
+ of the traffic heading to the firewall.
+Address Family Capture IPv4, IPv6 or both
+Invert Protocol Select all but the protocol selected below
+Protocol The protocol to filter on
+Host Address This value is either the Source or Destination IP address or subnet in CIDR notation.
+ The packet capture will look for this address in either field.
+ Matching can be negated by preceding the value with ":code:`not`".
+ Multiple IP addresses or CIDR subnets may be specified as boolean expression.
+ If you leave this field blank, all packets on the specified interface will be captured.
+ Example: :code:`not 10.0.0.0/24 not and not 11.0.0.1`
+Invert Port Select all but the port selected below
+Port Port number to filter on (e.g. :code:`443` for standard https, :code:`22` for ssh)
+Packet Length The Packet length is the number of bytes of each packet that will be captured.
+ Default value is 0, which will capture the entire frame regardless of its size.
+Count This is the number of packets the packet capture will grab (per selected interface).
+ Default value is 100. Enter 0 (zero) for no count limit.
+Description Description to be displayed in "jobs" tab
+=========================== ==================================================================================================================
+
+Packet capture uses `tcpdump