0 dual ip mode (addendum) – Alpha Technologies DSM3 for XM3 - Technical Manual User Manual
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745-814-B11-001, Rev. C (03/2014)
13.0 Dual IP Mode (Addendum)
13.5
Security in Dual IP Mode
Method 2: Dual IP Security Using the Secure Access List
The DSM3 provides an alternative method of providing additional SNMP security in Dual IP by limiting
access to the Communications Module’s CPE address. The Secure Access List method limits remote
SNMP access to four IP addresses. Only the IP addresses listed in the SNMP Access Table are able
to read or write to the Alpha MIB parameters from the public (CPE) network. This method overrides the
default
Data Access Key method.
The IP address entries in the SNMP Access Table can be set through the DOCSIS Configuration File, the
DSM3 Setup File (atidoc03.cfg) or remotely using SNMP by including the following Alpha MIB parameters:
MIB Parameter
Object ID
Description
Value
atiMgmtSnmpAccessTable
1.3.6.1.4.1.926.1.3.1.2
Table of SNMP
Access Addresses
Object identifier
atiMgmtSnmpAccessAddress.1
1.3.6.1.4.1.926.1.3.1.2.1.2.1
SNMP access IP Address #1
0.0.0.0 (Default)
atiMgmtSnmpAccessAddress.2
1.3.6.1.4.1.926.1.3.1.2.1.2.2
SNMP access IP Address #2
0.0.0.0 (Default)
atiMgmtSnmpAccessAddress.3
1.3.6.1.4.1.926.1.3.1.2.1.2.3
SNMP access IP Address #3
0.0.0.0 (Default)
atiMgmtSnmpAccessAddress.4
1.3.6.1.4.1.926.1.3.1.2.1.2.4
SNMP access IP Address #4
0.0.0.0 (Default)
Table 13-7, Secure Access Table Parameters