Enable SNMP Monitoring
Table of Contents
Enable SNMP Monitoring
- Device > Setup > Operations
Simple Network Management Protocol (SNMP) is a standard protocol
for monitoring the devices on your network. Select Operations to
configure the firewall to use the SNMP version that your SNMP manager
supports (SNMPv2c or SNMPv3). For a list of the MIBs that you must
load into the SNMP manager so it can interpret the statistics it
collects from the firewall, see Supported MIBs
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. To
configure the server profile that enables the firewall to communicate
with the SNMP trap destinations on your network, see Device
> Server Profiles > SNMP Trap. The SNMP MIBs define all SNMP traps
that the firewall generates. An SNMP trap identifies an event with
a unique Object ID (OID) and the individual fields are defined as
a variable binding (varbind) list. Click SNMP Setup and
specify the following settings to allow SNMP GET requests from your
SNMP manager:
Field | Description |
|---|---|
Physical Location | Specify the physical location of the firewall.
When a log or trap is generated, this information allows you to
identify (in an SNMP manager) the firewall that generated the notification. |
Contact | Enter the name or email address of the person
responsible for maintaining the firewall. This setting is reported
in the standard system information MIB. |
Use Specific Trap Definitions | This option is selected by default, which
means the firewall uses a unique OID for each SNMP trap based on
the event type. If you clear this option, every trap will have the
same OID. |
Version | Select the SNMP version: V2c (default)
or V3. Your selection controls the remaining
fields that the dialog displays. |
For SNMP V2c | |
SNMP Community String | Enter the community string, which identifies
an SNMP community of SNMP managers and monitored devices
and also serves as a password to authenticate the community members
to each other when they exchange SNMP get (statistics request) and
trap messages. The string can have up to 127 characters, accepts
all characters, and is case-sensitive. Don’t
use the default community string public.
Because SNMP messages contain community strings in clear text, consider
the security requirements of your network when defining community
membership (administrator access). |
For SNMP V3 | |
Name / View | You can assign a group of one or more views
to the user of an SNMP manager to control which MIB objects (statistics)
the user can get from the firewall. Each view is a paired OID and
bitwise mask: the OID specifies a MIB and the mask (in hexadecimal
format) specifies which objects are accessible within (include matching)
or outside (exclude matching) that MIB. For example, if the OID is
1.3.6.1, the matching Option is set to include and
the Mask is 0xf0, then the objects that the
user requests must have OIDs that match the first four nodes (f
= 1111) of 1.3.6.1. The objects don’t need to match the remaining
nodes. In this example, 1.3.6.1.2 matches the mask and 1.4.6.1.2
doesn’t. For each group of views, click Add,
enter a Name for the group, and then configure
the following for each view you Add to the
group:
To provide access to
all management information, use the top-level OID 1.3.6.1,
set the Mask to 0xf0, and set the matching Option to include. |
Users | SNMP user accounts provide authentication,
privacy, and access control when firewalls forward traps and SNMP
managers get firewall statistics. For each user, click Add and
configure the following settings:
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