SNMP – Simple network management protocol

  • Manager – Monitoring device
  • Agent – Devices being monitored
  • MIB – management information Base
  • UDP port 161
  • Uses GETs and SETs
  • SNMP Traps
    • Agent informs the manager.
  • SNMPv1 and 2c have community strings.
  • SNMPv3 has encryption and authentication.
    • auth – Group using the AuthNoPriv Security Level
      • Authentication: yes
      • Privacy ( encryption ): no
    • noauth – Group using the noAuthNoPriv Security Level
      • Authentication: no
      • Privacy ( encryption ): no
    • Priv – Group using the AuthPriv Security Level
      • Authentication: yes
      • Privacy ( encryption ): yes
  • If no read view is defined , all objects can be read.
  • If no write view is defined , no objects can be written.
  • If no notify view is defined , group members are not sent notifications.

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