Documentation forNetwork Topology Mapper

Specify discovery credentials

Network Topology Mapper (NTM) is FIPS-compliant and supports both AES 192 and 256. SNMPv3 credentials use FIPS-compliant algorithms to encrypt credentials.

Start the Network Topology Scan wizard

On the main Network Topology Mapper screen, click New Scan to start the Network Topology Scan wizard.

You can also start the wizard from the Getting Started with Topology mapper screen when you open NTM.

Review default credentials

  1. Review the default credentials (public and private) listed in Discovery Credentials.

  2. If you are not using the defaults, remove them by clicking Remove Credential.

Removed credentials remain in Stored Credentials but will not be used for the discovery. To use them again, move them back to Discovery Credentials.

Specify credentials for discovery

Specify credentials for the discovery scan. You can use stored credentials or create new credentials.

Use stored credentials

In Stored Credentials, select a credential.

Click the right arrow to add it to Discovery Credentials.

  • If an active credential with the same name already exists, you can overwrite it or save it with a new name.

  • To remove a credential from discovery, select it in Discovery Credentials and click the left arrow.

Create new SNMP v1 and SNMPv2 credentials

  1. On SNMP Credentials, click New Credential and select SNMPv1/2.

  2. Enter a unique Name.

  3. Enter the community string the devices use for SNMP read-only access.

  4. Enter a device IP address or hostname within the intended scan range, and then click Test Credential.

  5. To store the credential, click Store Credential.

  6. To make the credential available during future discoveries, click Automatically use for future discoveries. This option adds the credential into the repository of active Discovery Credentials.

  7. Click Save. This saves the new credential.

  8. Select the credential and move it to Discovery Credentials.

Create new SNMPv3 credentials

  1. On SNMP Credentials, click New Credential and select SNMPv3.

  2. Enter a unique name and user name.

    For Cisco devices, this is defined in the snmp-server users configuration command.

    NTM cannot poll the ipRouteTable MIB for Cisco devices running on IOS release 12.4 (13b) and later releases.

  3. Enter the context. For Cisco devices, this is defined in the snmp-server group configuration command.

  4. Select the Authentication Method. For Cisco devices, this is defined in the snmp-server user configuration command.

  5. Enter the password or key in the Password/Key field.

  6. If you have entered a key, select Password is a key.

  7. Select the Privacy/Encryption Method. For Cisco devices, this is also defined in the snmp-server user configuration command.

  8. Enter a valid device IP address or hostname within your intended scan range, and then click Test Credential.

  9. If the test fails, review the device SNMP v3 configurations and ensure you are using the proper fields.

  10. To store the credential, click Store Credential.

  11. To make the credential available during future discoveries, click Automatically use for future discoveries. This option adds the credential into the repository of active Discovery Credentials.

  12. Click Save. This saves the new credential.

  13. Select the credential and move it to Discovery Credentials.

Create new WMI credentials

  1. On WMI Credentials, click New Credential to add WMI credentials.

    NTM uses WMI credentials to collect data from Windows devices, VMware guests, and Hyper-V hosts and guests.

  2. Enter a unique name.

  3. Enter the WMI user name, enter a password and then re-enter the password in the Confirm Password field.

  4. Enter a valid device IP address or hostname within your intended scan range, and then click Test Credential.

  5. To store the credential, click Store Credential.

  6. To make the credential available during future discoveries, click Automatically use for future discoveries. This option adds the credential into the repository of active Discovery Credentials.

  7. Click Save. This saves the new credential.

  8. Select the credential and move it to Discovery Credentials.

Create new VMware credentials

  1. On VMware Credentials, click Add Credentials to add VMware credentials.

    NTM uses VMware credentials to collect data about VMware hosts and guests by IP address. To collect detailed guest data, also configure WMI credentials and include guest IP addresses in the scan range.

  2. Enter a unique name for the vCenter or ESX.

  3. Enter the VMWare user name and password.

  4. Enter a device IP address or hostname within your intended scan range, and then click Test Credential.

  5. To store the credential, click Store Credential.

  6. To make the credential available during future discoveries, click Automatically use for future discoveries. This option adds the credential into the repository of active Discovery Credentials.

  7. Click Save. This saves the new credential.

  8. Select the credential and move it to Discovery Credentials.

Create new AWS credentials

  1. On AWS Credentials, click Add Credentials.

  2. Enter a unique display name for the cloud account.

  3. Enter your Access Key ID and your Secret Access Key. See How to quickly find and update your access keys... in AWS documentation.

  4. Select a region.

  5. Click Test Credential.

  6. To store the credential, click Store Credential.

  7. To make the credential available during future discoveries, click Automatically use for future discoveries. This option adds the credential into the repository of active Discovery Credentials.

  8. Click Save. This saves the new credential.

  9. Select the credential and move it to Discovery Credentials.