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Add nodes with the same hostname but different IP addresses using Network Discovery

I'm unable to add multiple nodes having same hostname, system name, but different IP addresses via Network Discovery. I followed steps as described in solarwinds support links.

https://support.solarwinds.com/Success_Center/Network_Performance_Monitor_(NPM)/Nodes_with_the_same_host_name_but_different_IP_addresses_are_not_added_after_discovery

https://support.solarwinds.com/Success_Center/Network_Performance_Monitor_(NPM)/Add_nodes_with_the_same_hostname_using_Network_Discovery

I made changes in SolarWinds.Orion.Discovery.Job.dll.config file. and follow all the steps. I even re run configuration wizard and also reboot the server but the change didn't applied. Network discovery found the nodes but skip them when we import the results. Problem seen in network discovery via snmp. (Discovery via ICMP worked but it didn't poll the device only display up/down status). Adding nodes manually one by one worked. In our network we have 500 plus routers and every router have 3 ip addresses. one Vlan Ip and two isp ip addresses. Adding them one by one will consume lot of time.

An urgent response may save us from this hardwork.

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Accepted answers

furqan.anwar

thanks this is quite helpful collection of scripts.

I found another article on orion website that helped me to resolve this.

Disable Duplicate Detector for Discovery Engine - SolarWinds Worldwide, LLC. Help and Support

I changed the default and current weight values to 0 of following settingid in setting table
Discovery-Import-SysNameDeDuplicator-Weight
Discovery-Import-DNSDeDuplicator-Weight
Discovery-Import-MacDuplicateDetector-Weight

discovery worked although there was an exception warning but nodes were successfully added. After this I faced "redirection to error page" after every page refresh event. To avoid this I revert back the default values and every thing back to normal again.

All comments

HerrDoktor

Do you want to poll all those machine on all 3 IP Adresses? You will get all IP Adresses listed on the Node Details Page. Or is this a requirement to "probe" all IP Adresses, either way it is the same Node just with different Interfaces as the polling interface, right?

furqan.anwar

Yes, you are correct. This will be same node with different polling IP address. I forgot to mentioned that nodes are already added via vlan ip and requirement is that branch router will be polled via all three ip address and via SNMP

furqan.anwar

i know It sounds ridiculous (having one device with 3 different ip and via SNMP, that cost 2 valuable node space)

but it is a requirement.

HerrDoktor

If it is a requirement we need to find a way... I assume discovery checks the additional IP addresses on the nodes and marks them as "duplicates" because this device is already managed (over the "main polling IP"). So I guess we need to get rid of the additional IP addresses on the node, then we might to be able to add the nodes again with a different IP.

One thing that makes me scratch my head is -> once the rediscovery runs, the additional IP Addresses will be added again, so we need to increase the rediscovery interval so that we will be able to add the nodes.

Do you have a list with the IP addresses and additional Information so that you could possibly add the nodes by an API-Script? This might make life a little easier.

Cheers

furqan.anwar

by API-Scricpt? how?

i have the list.

HerrDoktor

OrionSDK/CRUD.AddNode.ps1 at master · solarwinds/OrionSDK · GitHub

Here's a Sample.

If you need help with that you can contact me directly.

furqan.anwar

thanks this is quite helpful collection of scripts.

I found another article on orion website that helped me to resolve this.

Disable Duplicate Detector for Discovery Engine - SolarWinds Worldwide, LLC. Help and Support