Finding Traffic of Interest › Filter Networks

Filter Networks

A network is a range of IP addresses or one IP address that represents a specific location or a logical grouping of users. The Configuration Utility automatically detects client IPs and displays them in the Detected Networks pane according to the current Group By Mask setting. For example, if the Group By Mask is set to 24, the Configuration Utility groups unconfigured client IPs into /24 networks.

When filtering networks, we recommend filtering on /24 networks. Defining /24 client networks (with 1 region) enable the QoS reporting on Users to list the actual client IPs on the network. To view the detected client IPs for a particular /24 network, place a Network filter on the /24 network you want and then set the Group By Mask to 32.

Sort the list of networks list by clicking a column header:

Bytes To and Bytes From, and Packets To and Packets From

Displays networks with the most traffic. As a best practice, we recommend monitoring the busiest networks.

TTL

Displays the Time To Live (TTL) values from all clients in the network to all viewed servers. Unlike server TTL values, monitored networks can (and usually will) have varied non-default values.

Use filtering to find a network of interest:

Network filter

Lists the servers and ports that the client network accesses. For example, applying a Network filter to a client network adds the network to the Network Filter criteria and displays a list of associated servers and application ports.

Server filter

Lists all applications on a server subnet. For example, applying a Server filter of 192.168.0.0/16 displays the servers and applications on that server subnet.

Follow these steps:

1. In the Detected Networks pane, right-click a network and click Apply network (network) as Network Filter or Apply network (network) as Server Filter.

   If you want to filter a server by a range of IPs or a subnet, type the IP range or subnet in the Network Filter detection criteria field and press Enter.

2. (Optional) Add the network or server definition to CA ADA.

More information:

Filter Criteria

Define a Server

Define a Network