Authentication key for this network in the case that the authentication type Null is used.
- SNMP ID:
 - 2.93.3.4.12
 - Console path:
 - Setup > Routing-Protocols > OSPF > Interfaces
 - Possible values:
 16 characters from the following character set [A-Z a-z 0-9 @{|}~!$%'()#*+-,/:;?[\]^_.&<=>]