5–Managing Switches
Configuring SNMP
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SNMP v3 Security
Simple Network Management Protocol Version 3 (SNMPv3) is an interoperable
standards-based protocol for network management. SNMPv3 provides secure
access to devices using a combination of authenticating and encrypting packets
over the network. SNMP v3 security is an additional layer of security. The SNMP
v3 security is available on a secure (SSL) entry switch. The security features
provided in SNMPv3 are:
Message integrity—ensuring that a packet has not been tampered with
during transit
Authentication—determining that the message is from a valid source
Encryption—scrambling the contents of a packet to prevent it from being
seen by an unauthorized source
You configure SNMP v3 security in the SNMP v3 Manager dialog box
(Figure 5-27).
Trap 1 Enabled Enables or disables the trap. if disabled, traps are not sent to
trap monitoring stations and the trap settings are not configu-
rable.
Trap Address Specifies the IP address to which SNMP traps are sent. A maxi-
mum of 5 trap addresses are supported. The default address for
trap 1 is 10.0.0.254. The default address for traps 2–5 is
0.0.0.0.
Trap Community Trap community password (up to 32 characters) that authorizes
an SNMP agent to receive traps. This is a write-only field. The
value on the switch and the SNMP management server must be
the same. The default is public.
Trap Severity Specifies a severity level to assign to the trap. On the drop-down
list and choose a level. The Trap 1 Enabled option on the SNMP
Properties dialog box must be enabled to access this drop-down
list. Trap severity levels include Unknown, Emergency, Alert,
Critical, Error, Warning, Notify, Info, Debug, and Mark
Trap Port Specifies the port number (between 1–65535) on which a trap is
set. The default is 162.
Table 5-13. SNMP Properties Dialog Box Fields (Continued)
Field Description
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