User guide

Additional configuration for SNMPv3 agent entities SNMP
1-93
iMG/RG Software Reference Manual (System Configuration)
vacmViewTreeFamilyViewName
is a human readable string representing the name of this family of view subtrees.
vacmViewTreeFamilySubtree
is an OBJECT IDENTIFIER that identifies a subtree of the MIB; e.g. enterprises.207. This value and vacm-
ViewTreeFamilyMask are used to determine if an OBJECT IDENTIFIER is in this family of view subtrees.
vacmViewTreeFamilyMask
is an OctetString represented as a sequence of hexadecimal numbers separated by colons. Each octet is
within the range 0x00 through 0xFF. A zero length OctetString is represented with a dash (-).
vacmViewTreeFamilyType
is included or excluded and indicates if the vacmViewTreeFamilySubtree is explicitly accessible or not
accessible in this family of view subtrees.
VacmViewTreeFamilyStorageType
is nonVolatile, permanent, or readOnly.
It's possible define more than one vacmTreeFamily. The list of all the vacmTreeFamily entries is named
vacmTreeFamilyTable.
Example:
vacmViewTreeFamilyEntry All iso - included non-Volatile
defines a subtree for the view named “All” that includes the entire set of MIB objects (iso is the root node of
the MIB tree).
The vacmViewTreeFamilyMask field allows restriction of the MIB view at a finer granularity than that of
the vacmViewTreeFamilySubtree and vacmViewTreeFamilyType pair. For instance, a view can be
restricted to one row of a table (see the example below).
The value - causes the corresponding vacmViewTreeFamilyMask to be a NULL string, which in turn
allows all entries ‘below’ the vacmViewTreeFamilySubtree entry to be visible, unless cancelled by
another vacmViewTreeFamilyEntry.
The vacmViewTreeFamilyMask is built using octets that correspond to the OID being restricted. For
example, one may wish to restrict a user’s view of the ifTable to only the second row, all columns. The OID
for ifEntry.0.2 is:
1.3.6.1.2.1.2.2.1.0.2
The vacmViewTreeFamilyMask is a series of ones and zeros used for masking out parts of the tree. A
zero indicates a
WILD CARD (i.e, matches anything), and a one indicates an exact match must be made. So: