- Thomson Digital Technology Co. Lt Wireless Business DSL Routers Operator's Guide

Chapter 10
SpeedTouch™ Monitoring
E-DOC-CTC-20051017-0155 v1.0
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10.2.11 How to Restrict SNMP Access
SNMP Access
Restriction
You can restrict SNMP Access so that it is accepted from specific IP addresses only.
To do this, add the IP address or an IP Address range to the access list for the
service SNMPV3_Agent. Note that this also covers SNMPv1.
You can also restrict access to specific interface groups such as WAN, LAN, DMZ,...
How to Add an IP
Address to the Access
List
Use the following command:
with
<ip-range> either the IP address or the range of IP addresses from which
SNMP access should be allowed.
How to Add an
Interface Group to the
Access List
Use the following command:
The
<group> parameter determines which interface group has access to the
SNMP service.
How to View the
Configuration
Use the following command to view the configuration:
This results in the following output:
:service system ipadd name=SNMPV3_AGENT ip=<ip-range>
:service system ifadd name=SNMPV3_AGENT group =
<{wan|local|lan|tunnel|dmz|guest} or number>
:service system list name SNMPV3_AGENT expand enabled
Idx Name Protocol SrcPort DstPort Group
-----------------------------------------------------------------------
1 SNMPV3_AGENT udp 161
Description................ Rx snmp GET, SET and GETNEXT PDUs
Properties................. server
Attributes................. state port aclip aclif aclifgroup map log
User Managed Attributes.... state aclip aclif aclifgroup map log
Attribute Values :
State...................... (administratively) disabled
Port....................... 161
Ip Access List............. any
Interface Access List...... any
Interface Group Access List any
Map List................... 161
Logging.................... disabled