5–Managing SwitchesConfiguring SNMP5-58 59266-01 BSNMP v3 SecuritySimple Network Management Protocol Version 3 (SNMPv3) is an interoperablestandards-based protocol for network management. SNMPv3 provides secureaccess to devices using a combination of authenticating and encrypting packetsover the network. SNMP v3 security is an additional layer of security. The SNMPv3 security is available on a secure (SSL) entry switch. The security featuresprovided in SNMPv3 are: Message integrity—ensuring that a packet has not been tampered withduring transit Authentication—determining that the message is from a valid source Encryption—scrambling the contents of a packet to prevent it from beingseen by an unauthorized sourceYou 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 totrap 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 fortrap 1 is 10.0.0.254. The default address for traps 2–5 is0.0.0.0.Trap Community Trap community password (up to 32 characters) that authorizesan SNMP agent to receive traps. This is a write-only field. Thevalue on the switch and the SNMP management server must bethe same. The default is public.Trap Severity Specifies a severity level to assign to the trap. On the drop-downlist and choose a level. The Trap 1 Enabled option on the SNMPProperties dialog box must be enabled to access this drop-downlist. Trap severity levels include Unknown, Emergency, Alert,Critical, Error, Warning, Notify, Info, Debug, and MarkTrap Port Specifies the port number (between 1–65535) on which a trap isset. The default is 162.Table 5-13. SNMP Properties Dialog Box Fields (Continued)Field Description
