Hi Jan-Terje,

Below I'm sharing with you an automation script I've created some time ago to change the SNMPv3 credentials for a specific set of elements. Now, I have added also the IP address so you can use it a reference and starting point to reach your goal. Please test it carefully.

Note this is just an idea as I'm note sure if there is a more straightforward way to do it.

Hope it helps.

using System;
using Skyline.DataMiner.Automation;
using Skyline.DataMiner.Net.Messages;

public class Script
{
//------------------------------------------------------------------------------------------------------------------------------------
// these are the input parameters of the script, please make sure they are correct:
//------------------------------------------------------------------------------------------------------------------------------------
const string sUserName = "admin"; // snmpv3 user name
const string sGetComPwd = "password_AAA"; // snmpv3 authentication password
const string sSetComPwd = "password_BBB"; // usually both authentication and encryption passwords are the same
const string sIpAddress = "127.0.0.1"; // Polling IP address

const int iIntervalBetweenChanges = 500; // in miliseconds

String[] elements = { "CMTS#1", "CMTS#2" }; // Names of the elements to be changed
//------------------------------------------------------------------------------------------------------------------------------------

public void Run(Engine engine)
{
engine.GenerateInformation("Change Element Passwords | Starting!");

engine.Timeout = TimeSpan.FromMinutes(60);

int nrElements = 0;
int nrElementsChanged = 0;

foreach (String sElement in elements)
{
nrElements++;

if (ChangeElementCredentials(engine, sElement))
nrElementsChanged++;
engine.Sleep(iIntervalBetweenChanges);
}

engine.GenerateInformation("Total of " + nrElementsChanged + " out of " + nrElements + " elements changed.");
engine.GenerateInformation("Change Element Passwords | Completed!");

}

public bool ChangeElementCredentials(Engine engine, String elementName)
{

try
{
Element eEl = engine.FindElement(elementName);

GetLiteElementInfo glei = new GetLiteElementInfo();
glei.DataMinerID = eEl.DmaId;
glei.ElementID = eEl.ElementId;

LiteElementInfoEvent leie = Engine.SLNet.SendSingleResponseMessage(glei) as LiteElementInfoEvent;

ElementPortInfo[] PortInfo = leie.PortInfo;

bool bChanged = false;
foreach (ElementPortInfo epi in PortInfo)
{
if (epi.ProtocolType.ToString().Equals("SnmpV3"))
{
epi.PollingIPAddress = sIpAddress;
epi.DataBits = sUserName;
epi.GetCommunity = sGetComPwd;
epi.SetCommunity = sSetComPwd;
bChanged = true;
}
}

if (bChanged)
{
engine.GenerateInformation("--> changing " + eEl.ElementName);
AddElementMessage aem = new AddElementMessage();
aem.DataMinerID = eEl.DmaId;
aem.ElementID = eEl.ElementId;
aem.ProtocolName = leie.Protocol;
aem.ProtocolVersion = leie.ProtocolVersion;
aem.Ports = PortInfo;

engine.GenerateInformation("--> changing " + eEl.ElementName + "; Sending AddElement message");
Engine.SLNet.SendSingleResponseMessage(aem);
}

}
catch (Exception ex)
{
engine.GenerateInformation("--> ERR: changing " + elementName + " failed!. Skipping this element. " + ex.ToString());
return false;
}

return true;
}

}