Flashcards in Topic 7 - Infrastructure Management Deck (6)
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1
Explain SNMP
SNMP is a layer 7 application layer protocol consisting of an SNMP manager, an SNMP agent and MIBs.
Allows you to actively monitor the network and devices and notify you before it’s a problem
2
SNMP Versions and its features
SNMP v1
SNMP 2c - NMPv2 improves upon SNMPv1 (SNMPv1 was criticized for poor security).
- Includes these improvements of Performance, Security, Confidentiality.
- SNMPv2 still uses the less secure community-string ( in Plain clear Text )
SNMP V3:
• SNMPv3 does not use community-strings
• SNMPv3 provides message integrity, authentication, encryption
• Security model (Auth) is an authentication strategy for groups and users within those groups.
• Security level (Priv) is the permitted level of security within a security model
Security mechanism is the combination of security model and security level in use
3
Explain Syslog
Syslog is a way for network devices to send event messages to a logging server, usually known as a Syslog server.
• Able to timestamp messages for real-time debugging (check system clock)
- Syslog messages can be accessed via CLI and/or saved to a syslog server
4
SNMP manager Protocol and port number
UDP
port 161
5
SNMP Agent Protocol and port number
UDP
port 162)
6
