Discovery does not run on the Operations Center node. The discovery process takes place on the collectors after they are registered to the Operations Center.

After the NetMRI setup process has been completed, check discovery progress in the Tools > Network section > Discovery Status page. If the Default Gateway, CIDR blocks, SNMP credentials, and Telnet/SSH credentials were entered correctly, you should start to see devices listed in this table within a few minutes.

Periodically click the Refresh button to see how discovery is progressing.

At this point, you can return your workstation to its previous network configuration. Further access to NetMRI is done by accessing the IP address assigned in the Setup Wizard Step 4 or using the DNS name that has been associated with that address.

For IPv6 networks, NetMRI discovers and stores the following information about IPv6 interfaces on network devices:

• The IPv6 networks and subnet masks
• Link-local interface IP addresses
• Globally routable interface IP addresses
• VRRP/HSRP virtual IP address (if applicable)
• Associated VLANs
• GLBP virtual IP (if applicable)
• BGP AS and neighbor adjacencies (if applicable)
• Cisco VoIP endpoint devices

When NetMRI discovers devices, IPv4 and IPv6 addresses are reported equally by the appliance.

Troubleshooting

If no devices appear within a few minutes, verify the accuracy of the network information added during the configuration process as follows:

 1. In the NetMRI header panel, click the Settings button. In the menu along the right side of the Settings window, click the Setup section, then click Discovery Settings. Ensure that the given CIDR blocks cover the desired parts of your network. Also, ensure that the Default Gateway is covered by one of the Included CIDR blocks, but not by one of the Excluded CIDR blocks.

 2. In the menu along the right side of the Settings window, click Collectors and Groups (just above Discovery Settings). Ensure that SNMP collection is In the Settings window, click SNMP Credentials, and verify that the community strings for your network devices are entered properly (e.g., check spelling and case sensitivity).

 3. If NetMRI was configured using a crossover Ethernet cable and NetMRI was not on the network following completion of the configuration process, initial probes of the network may not be Navigate to Settings > Settings section > Discovery Settings and then click the Reset Discovery Counters button (below the table) to kick off the initial network probes again, then monitor the discovery process.

Any changes made using the forms described above will be automatically used by the discovery process. If the new information is correct, you should start to see devices appearing in the table at Network Explorer > Inventory tab > Devices / Interfaces section > Devices.

Reviewing Operations Center Configuration Details

To review Controller configuration details and list connected Collectors:

 1. Log in to the administrative shell on the Controller.

 2. Run the show tunserver command. 

To review Collector configuration details:

 1. Log in to the admin shell on the Collector.

 2. Run the show tunclient command.

Adding More Resources

As a virtual appliance, NetMRI allows the allocation of additional VMware server resources to the VM. Additional resources can be in the form of additional vCPUs, additional memory, or additional storage.