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Question on Alert Message Variables

wpbrown

I'm a little stuck on inserting variables into alert messages and I'm hoping someone can provide a suggestion or work-around to what I'm trying to accomplish. I have several routers on my network that have two interfaces (Gi0/1 and Gi0/2) with public IP addresses assigned to them, and an interface (Gi0/0) on the LAN with a private IP. I do all my monitoring / polling of the routers via the private IP address. In the Custom Properties, I have defined an Interface object called Interface_IP_Address and have populated these with the IP addresses of all three interfaces.

If a node goes down, I would like the Alert Message to include the IP address of all three interfaces. I can already insert the LAN interface via the $IP_Address variable which supplies the monitored IP, so what I'm really looking to do is have the public IPs included in the Alert Message. Does anyone know how I can accomplish this?

Thanks in advance.

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MarieB

Wpbrown--

What version of NPM/other modules are you running?

wpbrown

I'm running NPM 10.1 and NTA 3.7.

-Will

jeff.stewart

Can you use the variable that is created for your custom property? It should be something like; ${Node.Interface_IP_Address}.

wpbrown

Thanks, Jeff, but I don't believe it would be that simple. Since there would be three interface IP addresses I would want to have listed, I think I would need to have some sort of reference to the interface (e.g. Gi0/1) included in the variable, which I'm not sure how to include.

netlogix

If you have filled the Custom field with the IP addresses, then it is that simple. What Custom fields did you create? Did you put the IP addresses in the fields manually? if so, then just ${Node.Interface_IP_Address} works for a custom node property named "Interface_IP_Address", but if you created a property called "Gi0/1_IP_Address", then you would use ${Node.Gi0/1_IP_Address}, but this is dependent on you creating a field(s) and populating it with the value(s).

But if you want it to query for the IP, or go through the config to retrieve the IP, then it need to be approached in a different way.

wpbrown

Thanks, netlogix. The Custom filed I created was an *interface* property called Interface_IP_Address, not a node property. Since my router has three physical interfaces, I beleive the variable name must include some sort of reference to the particular interface whose IP I want to display. Using the variable ${Node.Interface_IP_Address} only echos back the variable name when generating a test alert, there is no IP address(es) provided.

If I can query for the IP, I'm open to suggestions on that instead, as it may save me from having to populate this custom property for literally hundreds of interfaces.

netlogix

Ah! it is an interface property! ${Node.VARNAME} pulls a node's custom property. Is this an interface or node alert? if it is a node alert, then it might be a bit tricky. you could micky mouse it by using ${SQL:SELECT IfName+"="+Interface_IP_Address+', ' as a FROM Interfaces where not NodeID = ${Node.NodeID} FOR XML PATH}

Thats a little ugly, but it might work.

I would like the querying too, but that is a major adventure I have not started down yet. I have it in a custom field and manually populate it still myself. although I have it on my list of things to automate but it hasn't been important enough to set everything else down, but of course paying attention to thwack doesn't get me any extra time, just lots of ideas of more things to do.