User guide

SNMP Additional configuration for SNMPv3 agent enti-

iMG/RG Software Reference Manual (System Configuration)

1-94

FIGURE 1-16 vacmViewTreeFamilyMask

would require an exact match on all fields except the table column (i.e., the 0 in ifEntry.0.2).

Using the above example, the bits of the vacmViewTreeFamilyMask would be grouped into bytes, and

then the right end padded with ones if necessary to fill out the last byte:

FIGURE 1-17 vacmViewTreeFamilyMask (continued)

So the vacmViewTreeFamilyMask entry would be:

ff:bf

1.6.2.3 Defining groups and access rights

To configure a group and its associated access rights, add a vacmAccessEntry definition in the

snmpd.cnf file accordingly the following syntax:

vacmAccessEntry <vacmGroupName> <vacmAccessContextPrefix> <vacmAc-

cessSecurityModel> <vacmAccessSecurityLevel> <vacmAccessContext-

Match> <vacmAccessReadViewName> <vacmAccessWriteViewName>

vacmGroupName

is a human readable string which is the groupname.

vacmAccessContextPrefix

is a human readable string which is an entire or partial context name used to match the context name in (or

derived from) a management request. A dash (-) represents the default context.

vacmAccessSecurityModel

is snmpv1 for SNMPv1, snmpv2c for SNMPv2c, or usm for SNMPv3.

OID

vacmViewTreeFamilyMask

1.3.6.1.2.1.2.2.1.0.2

1 1 1 1 1 1 1 1 1 0 1

1 1 1 1 1 1 1 1

byte 1

1 1 1 1 1 1 1 1

byte 2

hex value

original mask

padded with 1’s