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How To use alias strategy within LoriotPro
LoriotPro uses an internal host data base named LDS for LoriotPro Directory Service. The LoriotPro LDS uses the IP address of the host to create indexes.
In this database, only one host profile (configuration) is available per host, each host from the point of view of LoriotPro has only one IP address (multihoming server or router are seen as multiple hosts). If a host has more than one SNMP agent, LoriotPro do not have the capacity to handle it.
SolutionLoriotPro uses an alias stategy to solve this problem. An alias host is a host with a dummy IP address used to index it in the LDS. A secondary IP address is set in the profile and is used in all modules of LoriotPro in replacement of the dummy address.
The use of Alias has some restrictions.
In the following example, a Cisco router ( viewed as one host ) at @IP:10.33.10.121 has three different profiles on a same udp port 161. LoriotPro use the @IP 10.33.10.126 to poll the router.
First, the host 10.33.10.121 is created in the LDS container Local for example.
Press "add host" and quit.
After the creation of the host select the contextual menu option "properties" to configure this host entry.
Select Set SNMPV3 button and input your parameters for snmpv3:
The next step consist of creating an Alias for this host
Create a new host entry with a dummy IP address, for example 22.214.171.124.
Add the correct parameters for the v2c profile and add the IP address 10.33.10.121 in the "is alias of" field. The polling function is not permited for an alias host. It is possible to set the next hop and enable discover scanning option.
Press 'add host' and answer YES at the question "add another host.
Create the new alias using the IP address 126.96.36.199.
Now, you have three entries in your LDS, corresponding to your three differents profiles for the same host.
WARNING : Only the first not alias profile should have the Snmp and ICMP polling option enabled.
If you doubleclick on an alias profile, an error is detected when the node information module receives the host response. A dialog box pop up "receive response from bad agent". This is because the IP address do not match the IP address of the host entry (it is a security option against spoofing attack) . Just click OK .
You could now attached Plugin to these hosts and manage them individually.