Alpha Technologies AlphaNet IDH4 for XM3-HP Series - Technical Manual - Manual (Page 14)

14 746-257-B5-001, Rev. A1 (11/2013)
3.2.1 Setting Modem Community Strings
Set the modem community strings with the DOCSIS Configuration File by including the following
SNMP parameters:
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, Upgrading IDH4 Series Modem Firmware.
NOTE:
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 address net 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 interfaces
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
3.0 Network Configuration, continued
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 Section 3.2.3, Sample DOCSIS Configuration File Entries.
Note: "X" denotes the index of the SNMP entry