OCS SNMP Device Mapper
To use this mapper, configure your requisition config to use ocs.devices as mapper.
This mapper requires a checksum of 4099.
It validates the IP address of the snmpDevice against the black- and whitelists.
For the election of the default an IP filter can be used.
If the IP address of the snmpDevice is blocked a log message is written and the node will not have any interfaces.
The interface has assigned ICMP and SNMP as services.
foreignId is mapped from the OCS id of the snmpDevice.
nodeLabel is provided by the OCS name of the snmpDevice.
The assets for CPU and operating system are mapped against OCS.
Additionally a link to the OCS snmpDevice page is added to the asset comment field.
Black- and Whitelists
The OCS Integration supports black- and whitelists to control the selection of the management interface for the node. OCS itself does not define a management interface, it just selects one ip-address as default and maintains a networks-list for every device. For the election of the management interface, two IP filters are implemented in the IpInterfaceHelper class. Both read the black- and whitelist from the requisition configuration folder. Name them blackList.properties and whiteList.properties. Every line in those files is interpreted as an IPLike statement to offer ranges.
This filter accepts every IP address as valid that is not blacklisted. IP addresses that are whitelisted are preferred over unlisted IP addresses.
The first IP address of the ocs-networks-list that is whitelisted is used. If no IP address of the ocs-networks-list is whitelisted, the first IP address that is not blacklisted is elected as the management interface. If no IP address of the ocs-networks-list qualifies, the ocs-default-ip is checked against the blacklist. If it is not blacklisted, it is elected as the management interface (no interface description will be available). If it is blacklisted, no interface is added to the node. (selectManagementNetwork)
The IP address of an snmpDevice is elected as management interface as long as it is not blacklisted. If it is blacklisted, no interface is added to the node. (selectIpAddress)
Strict ip-filter "WhiteAndBlackOnly"
This filter implements a strict black- and whitelist approach. Computers and snmpDevices are handled independently.
This mode is just accepts IP addresses that are whitelisted and not blacklisted. If there are multiple IP addresses listed on ocs-networks-list that are whitelisted but not blacklisted, the first such one is selected as management IP. If no IP address from the ocs-networks-list passes the black- and whitelist, the ocs-default-ip is tested against the black- and whitelist. If the ocs-default-ip is whitelisted and not blacklisted, it is elected as management-ip. If no IP address matches the black- and whitelist, no interface is added to the node. If the ocs-default-ip is selected, the interface of the node will not contain any additional parameters like description. (selectManagementNetworkWhiteAndBlackOnly)
If the IP address of the snmpDevice is whitelisted and not blacklisted, it is elected as management interface. If the IP address does not pass the lists, no interface is added to the node. (selectIpAddressWhiteAndBlackOnly)
IPLike expressions in lists
In both lists the IPLike syntax can be used to express IP ranges and wildcards. Follow the IPLike description at IPLIKE documentation.