Alpha Technologies AlphaNet IDH4 for XM2 and XM2-300HP Series - Technical Manual - Manual (Page 14)

14 746-257-B2-001, Rev. B (01/2014)
The modem community strings should be set in the DOCSIS Configuration File. Failure to set
community strings will result in a less secure system. For automatically updating modem firmware
with the DOCSIS Configuration File, see Section 5.1.
3.2.1 Setting Modem Community Strings
Set the modem community strings with the DOCSIS Configuration File by including the following
SNMP parameters:
NOTE:
3.0 Network Configuration
3.2 The DOCSIS Configuration File
A cable modem’s DOCSIS Configuration File is a type-length-value (TLV) file that contains important
operational parameters as defined by the DOCSIS standards. It provides certain settings for the cable
modem. In addition to standard entries, settings in the DOCSIS Configuration File should include the
modem’s community strings and, if an upgrade is necessary, firmware upgrade parameters. Place the
configuration file in the TFTP root directory.
To build a DOCSIS Configuration File use a DOCSIS TLV editor program.
See the example Configuration File in Section 3.2.3.
MIB Parameter Object ID Description Value
docsDevNmAccessIp 1.3.6.1.2.1.69.1.2.1.2.x The IP address (or subnet) of the
network management station
e.g. 10.20.30.0
docsDevNmAccessIpMask 1.3.6.1.2.1.69.1.2.1.3.x The IP subnet mask of the network
management stations
e.g. 255.255.255.0
docsDevNmAccessCommunity 1.3.6.1.2.1.69.1.2.1.4.x The community string matched to
this IP/Mask entry
alphanumeric string
docsDevNmAccessControl 1.3.6.1.2.1.69.1.2.1.5.x The level of access granted 1= none
2= read only
3= read/write
docsDevNmAccessInterfaces 1.3.6.1.2.1.69.1.2.1.6.x Specifies the set of interfaces from
which requests from this NMS will
be accepted
0x40 : Cable interface
(typical)
0x80 : Ethernet interface
0xC0 or 0x00 : Both inter-
faces
docsDevNmAccessStatus 1.3.6.1.2.1.69.1.2.1.7.x Controls and reflects the status of
rows in this table
4
Table 3-1, Modem Community String Parameters
Note: X denotes the index of the SNMP entry