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User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
OL-22617-01
Chapter 5 User and System Administration
System Administration
Note NAM 5.0 does not support using IPv6 for the network parameter IP address.
Step 3 Do one of the following:
• To save the changes, click Submit.
• To cancel the changes, click Reset.
SNMP Agent
An SNMP Agent is a network management software module that resides in a managed device. It has
local knowledge of management information and translates that information into a form compatible with
SNMP.
With NAM Traffic Analyzer 5.0, you have the ability to manage devices with SNMPv3. The NAM polls
the managed device to get its basic health and interface stats. For NAM blades (WS-SVC-NAM-1,
WS-SVC-NAM-2 platforms), the managed device is the switch in which the NAM is inserted, and the
NAM software negotiates with the switch to use SNMPv2c and a community string to do the polling.
This community string is only valid for use with the NAM. For security purposes, the switch associates
the community string with the NAM's IP address only, and no other SNMP application can use this
community string to communicate with the switch. For more information about community strings, see
Working with NAM Community Strings, page 5-4.
Also, to further alleviate any security concerns, the SNMP exchanges between WS-SVC-NAM-1 or
WS-SVC-NAM-2 and the switch take place on an internal backplane bus. These SNMP packets are not
visible on any network, nor any interface outside of the switch. It is a completely secure out-of-band
channel inside the switch.
For other platforms, such as Cisco 2200 Series appliances, you can type in any IP address and use it as
the managed device. In this case, the managed device may only want to use SNMPv3 since it is more
secure.
Note For a WAAS appliance, SNMPv3 is not required. It is contained within the same chassis, and the NAM
Traffic Analyzer uses an internal communications channel, so security is not an issue and the SNMPv3
option is not needed.
Tab l e 5-2 Network Parameters Dia log Box
Field Description
IP Address NAM IP address.
IP Broadcast NAM broadcast address.
Subnet Mask NAM subnet mask.
IP Gateway NAM IP gateway address.
Host Name NAM hostname.
Domain name NAM domain name.
Nameservers NAM nameserver address or addresses.