New/Edit Range Dialog Box

Enables you to set network ranges for Data Flow Probes, a probe clusters, or passive discovery probes. The results are retrieved from the addresses in the range you define. You can also define IP addresses that must be excluded from a range.

To access

Select Data Flow Management > Data Flow Probe Setup > Domains and Probes > <Domain>.

  • Data Flow Probes/Clusters: Select Data Flow Probes > a probe/cluster, and in the Ranges pane click the New Range  or Edit Range button.
  • Passive discovery probes: Select Passive Discovery Probes > a passive probe, and in the Passive Discovery Integrated Ranges pane click the New Range  or Edit Range button.
Important information

  • An IP address can belong to only one probe or probe cluster's range in the same domain. That is, two Probes in the same domain cannot have the same IP address in their ranges.

  • For a passive discovery probe, the range must fall within the range of the Data Flow Probe it is reporting to.

  • If you define a range that is out of the scope of the network on which the probe/cluster is installed, a warning message informs you that the probe is not included in the range.

    • Click Yes to save the current range without including the probe in the range.

    • Click No to continue editing without saving the current range.
Relevant tasks

User interface elements are described below:

UI Element Description
IPv4/6 Enables you to define the IP range in IPv4 or IPv6 format.
Definition Type

  • IP Range. (IPv4 format only) Enables you to define an IP address range for the probe/cluster. You define a start IP address and an end IP address.

  • CIDR. Enables you to define an address range using the CIDR (Classless Inter-Domain Routing) notation, where each IP address has a network prefix that identifies either an aggregation of network gateways or an individual gateway. The length of the network prefix is also specified as part of the IP address and varies depending on the number of bits that are needed.

Available: When creating a new range only
Range

Enables you to select a range over which the probe or cluster should perform discovery.

ClosedIPv4

  • IP Range. Define a range of IPv4 addresses using the following rules:

    • The IP address range must have the following format:

      start_ip_address – end_ip_address

      For example: 10.0.64.0 - 10.0.64.57

    • The first decimal value (octet) of the start IP address and the end IP address must be identical.

      For example, 10.1.2.3 - 10.4.5.6

    • The range can include an asterisk (*), representing any number in the range of 0-255.

      • If you use an asterisk, you do not need to enter a second IP address. For example, you can enter the range pattern 10.0.48.* to cover the range from 10.0.48.0 to 10.0.48.255.

      • Use an asterisk in the lower bound IP address of the IP range pattern only. If you use an asterisk in the lower bound IP address and also enter an upper bound IP address, the upper bound IP address is ignored.

      • You can use more than one asterisk (*) in an IP address as long as they are used consecutively. The asterisks cannot be situated between two numbers in the IP address, nor can they be substituted for the first digit in the number.

        For example, you can enter 10.0.*.* but not 10.*.64.*.

  • CIDR Notation. Define a range using the CIDR notation as follows:

    1. Enter the IP address in IPv4 format.

    2. In the drop-down, choose the number of bits (1-32) to determine the network prefix.

      For example, if you enter 192.30.250.00/18, then 192.30.250.00 is the network address and 18 indicates that the first 18 bits are the network part of the address, leaving the last 14 bits for specific host addresses.

ClosedIPv6

IPv6 ranges are defined in CIDR notation only:

  1. Enter the IP address in IPv6 format. You can define IPv6 ranges using the full or compressed IPv6 notation

    Example:

    • Full IPv6 addresses: abcd:abcd:abcd:abcd:abcd:abcd:abcd:abcd

    • Compressed IPv6 address:

      • A:B:C:D:1:2:3:4 is the compressed version of 000A:000B:000C:000D:0001:0002:0003:0004

      • abcd::abcd is the compressed version of abcd:0000:0000:0000:0000:0000:0000:abcd

      • ::abcd is the compressed version of 0000:0000:0000:0000:0000:0000:0000:abcd

  2. In the drop-down, choose the number of bits (1-128) to determine the network prefix.

    For example, if you enter abcd:abcd:abcd:abcd:abcd:abcd:abcd:abcd/100, then abcd:abcd:abcd:abcd:abcd:abcd:abcd:abcd is the network address and 100 indicates that the first 100 bits are the network part of the address, leaving the last 28 bits for specific host addresses.

Note IPv6 ranges cannot include IPv4-mapped IPv6 addresses (0.0.0.0 - 255.255.255.255). If your IPv6 range includes IPv4-mapped IPv6 addresses, these addresses must be defined separately in IPv4 ranges.

For example,the IPv6 range, 0:0:0:0:0:fffe:0:0/60, must be defined as a number of ranges as follows:

  • IPv6 range: 0:0:0:0:0:0:0:0 – 0:0:0:0:0:fffe:ffff:ffff
  • IPv4-mapped IPv6 range, 0:0:0:0:0:ffff:0:0 - 0:0:0:0:0:ffff:ffff:ffff, must be defined in IPv4 format: 0.0.0.0 - 255.255.255.255, per network class
  • IPv6 range: 0:0:0:1:0:0:0:0 – 0:0:0:f:ffff:ffff:ffff:ffff
Type

Defines the IP address lease time setting for the range.

Available when: Defining a range for a Data Flow Probe or a probe cluster.

Note It is important to select the appropriate IP Address type to ensure that discovery is performed as expected. For more information, see Effects of Range Type on Discovery Workflows.

  • Data Center. For permanent or long IP address lease times. This type is suitable for environments that have the following characteristics:

    • IP addresses are stable due to long lease times or due to the consistent availability characteristics of the nodes and network

    • Nodes connect to the network using the same interfaces due to a single access technology

    • Few or no mobile users

    • Single domain environment

  • Client. For short IP address lease times. This type is suitable for environments that have the following characteristics:

    • IP addresses are not stable due to short lease times or due to the inconsistent availability characteristics of the nodes and network.

    • Nodes connect to the network using different interfaces due to multiple access technologies. Therefore, the same IP address is bound to different interfaces at different times.

    • Mobile users access the network from different domains in a multi-domain environment.

      Note Enable SNMP on all networking devices.
Description (Optional)

A description about the selected range.

Note  

  • Maximum number of characters allowed: 150

  • No new lines or tabs may be inserted
Excluded IP Ranges

Enables you to define a range of IP addresses to exclude from the full network range specified above.

Note  

  • The rules for entering an excluded range are the same as for entering a range. For details, see Range above.

  • The excluded range must be defined in the same format (IPv4/IPv6) as the full network range.

  • Even when a network range is defined using CIDR notation, the excluded ranges can still only be defined in <start_ip_address> – <end_ip_address> format.

New Excluded IP Range . Enables you to define a range of IP addresses to exclude from the full range, and enter a description about the excluded range if desired.

Delete Excluded IP Range . Deletes an excluded IP range.

Edit Excluded IP Range . Enables you to edit a defined excluded IP range.

Example:

You can divide a network range into several sub-ranges.

For example, if the range is 10.0.64.0 – 10.0.64.255

and you define three excluded ranges:

  • 10.0.64.45 – 10.0.64.50
  • 10.0.64.65 – 10.0.64.70
  • 10.0.64.89 – 10.0.64.95

the Universal Discovery is performed over:

  • 10.0.64.0 – 10.0.64.44
  • 10.0.64.51 – 10.0.64.64
  • 10.0.64.71 – 10.0.64.88
  • 10.0.64.96 – 10.0.64.255
Ports

Enables you to define ports over which passive discovery should be performed within the defined range:

  • All available ports. Enables passive discovery over all available ports.
  • Selected ports Enables passive discovery over ports that you select from the Global Ports List. Click to select ports to monitor.

Available: When defining a network range for a passive discovery probe only.

Send Help Center feedback