Discovery

This frame allows polling more information from an Appliance.


The Discovery function consists in creating a Discovery agent for the selected Appliance (one agent maximum per Appliance) to collect additional data (as compared to the data already collected and displayed in the Real Time Flows list see above).

To use the Discovery function:

1 Set the ad hoc filters
2 Start the Discovery agent
3 Check the results
4 Stop the Discovery agent

Filters

The flows can be filtered according to multiple criteria, using the 5 drop-down lists and 2 check boxes surrounding the network diagram:

Template: three templates can be used to filter:
Out of local subnets: (= out of local config) packets crossing the Appliance, but where neither the source IP address nor the destination IP address belong to one of its Topology subnets (this traffic is called in Transit); these flows are not measured individually by the Appliance; instead, only their global volume is measured and reported (i.e., these flows are not present in the Real Time Flows list nor in any report, except in the Site Analysis reports, which show the volume of Transit traffic).
Unrecognized Application: packets belonging to applications which are not recognized by the Appliance's syntax engine, which were not declared and which do not use well-know ports,
Out of Domain: sent packets with a destination IP address which does not belong to a declared Topology subnet, or received packets with a source IP address which does not belong to a declared Topology subnet (in either case, these packets will match Out of Domain Topology subnet which is in the system by default, so it does not have to be declared , 0.0.0.0/0).
Local User Subnet: to filter the data using a User subnet declared for the local Site,
An Out of Local Config. check box allows, if checked, to display the traffic which does not belong to the local configuration only (see Out of local subnets above)
Remote User Subnet: to filter the data using a User subnet declared for a remote Site,
Remote Site: to filter the data using a User subnet declared for a remote Site,
Application: to filter the data according to one application,
An Out of config check box, allows, if checked, to discover the port number used by the unrecognized applications (see above).

Start/stop a Discovery agent

A Discovery agent can be started or stopped with the and buttons at the right of the <Site> - Discovery frame header:

Note: If the Start button is greyed and the Stop button is visible , it means that a Discovery agent is running on the Appliance. Discovery agents consume resources, and they are not meant to run permanently. So when you have found what you were looking for thanks to a Discovery agent, do not forget to stop it.


Result table

According to the configuration rules, this Discovery agent will collect the following data and send them to the Application Configuration server:

Local IP

local IP address

Remote IP

remote IP address

Application

name of the application, displayed as follows:

when the application is recognized: A (b), where A is the declared name and b is the application recognized by the syntax engine:
for a standard application (e.g. FTP) it reads: FTP (ftp),
for an application with a specific declaration (e.g. Ping_X is declared as follows: protocol: ICMP; User subnet: X), it reads: Ping_X (icmp)
for an application which is not recognized by the Appliance' syntax engine, but which is declared, it reads: <Application_name> (unknown)
when the application is not recognized (it is not recognized by the Appliance and it has not been defined), it displays the layer 4 protocol and the port number.

LAN => WAN Packets

number of ingress packets

LAN => WAN Bytes

number of ingress bytes

LAN => WAN Sessions

number of ingress sessions

WAN => LAN Packets

number of egress packets

WAN => LAN Bytes

number of egress bytes

WAN => LAN Sessions

number of egress sessions

%

percentage of traffic that each line represents over the total, in terms of LAN=>WAN Packets, LAN=>WAN Bytes, LAN=>WAN Sessions, WAN=>LAN Packets, WAN=>LAN Bytes or WAN=>LAN Sessions, according to the Sort by choice



Note: The counters are cleared at each start of a Discovery agent.

The result can be downloaded in CSV format by clicking on the button at the right of the <Site> - Discovery frame header.

Display settings

The results can be displayed in different ways, thanks to 6 drop-down lists below the network diagram:

Local IP:
Detail: the local IP addresses are displayed (so different local IP addresses will always be displayed on different lines),
Group: the local IP addresses are not displayed (and all flows with the same remote IP address and same application will be merged on one line, even if they have different local IP addresses).
Remote IP:
Detail: the remote IP addresses are displayed (so different remote IP addresses will always be displayed on different lines),
Group: the remote IP addresses are not displayed (and all flows with the same local IP address and same application will be merged on one line, even if they have different remote IP addresses).
Application:
Detail: the application names are displayed (so different applications will always be displayed on different lines),
Group: the application names are not displayed (and all flows with the same local IP address and same remote IP address will be merged on one line, even if different applications are running between these two addresses).
Top:
20: shows the 20 most significant results (in Packets, Bytes or Sessions, according to the field used to sort the data),
50: shows the 50 most significant results,
100: shows the 100 most significant results.
Sort by: it is possible to sort the data according to the number of:
LAN => WAN Bytes,
LAN => WAN Packets,
LAN => WAN Sessions,
WAN => LAN Bytes,
WAN => LAN Packets,
WAN => LAN Sessions.

It is also possible to sort the data by clicking on the column headers.

Period:
10 s: the results are refreshed every 10 seconds,
1 mn: the results are refreshed every minute,
5 mn: the results are refreshed every 5 minutes.