Chapter 4 Configuring Cisco Access Registrar 4.2

Configuring SNMP

/opt/CSCOar/bin/arserver stop

Modifying the snmpd.conf File

The path to the snmpd.conf file is /cisco-ar/ucd-snmp/share/snmp. Use vi (or another text editor) to edit the snmpd.conf file.

There are three parts of this file to modify:

Access Control

Trap Recipient

System Contact Information

Access Control

Access control defines who can query the system. By default, the agent responds to the public community for read-only access, if run without any configuration file in place.

The following example from the default snmpd.conf file shows how to configure the agent so that you can change the community names, and give yourself write access as well.

Complete the following steps to modify the snmpd.conf file.

Step 1 Look for the following lines in the snmpd.conf file for the location in the file to make modifications:

###############################################################################

#Access Control

###############################################################################

Step 2 First map the community name (COMMUNITY) into a security name that is relevant to your site, depending on where the request is coming from:

#

sec.name

source

community

com2sec

local

localhost

private

com2sec

mynetwork

10.1.9.0/24

public

The names are tokens that you define arbitrarily.

Step 3 Map the security names into group names:

#sec.model sec.name group MyRWGroupv1local group MyRWGroupv2clocal group MyRWGroupusmlocal group MyROGroupv1 mynetwork group MyROGroupv2c mynetwork group MyROGroupusmmynetwork

Step 4 Create a view to enable the groups to have rights:

#

incl/excl

subtree

mask

view all

included

.1

80

Step 5 Finally, you grant the two groups access to the one view with different write permissions:

#

context

sec.model

sec.level

match

read

write

notif

 

access MyROGroup ""

any

noauth

exact

all

none

none

 

access MyRWGroup ""

any

noauth

exact

all

all

none

 

 

 

 

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Cisco Systems 4.2 manual Modifying the snmpd.conf File, Access Control, Opt/CSCOar/bin/arserver stop

4.2 specifications

Cisco Systems, a global leader in IT and networking solutions, has consistently evolved to meet the demands of modern enterprises. One of its noteworthy offerings is Cisco Systems 4.2, a version that embodies a significant leap in networking technology and capability. With its rich set of features, Cisco Systems 4.2 caters to a wide range of industries, facilitating enhanced performance and security.

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