AVer SD1306 user manual - Manual (Page 49)

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 SNMPv3: For data security reason, the authentication and encryption assurances are added when
developing SNMPv3. The user has to give not only the security name (the same as "community
name" in v1&v2c, or sometimes we call it "context name") but the password in order to access the
IP camera. Please set security name, authentication type, authentication password, encryption
type, encryption password of write and read respectively. The password must be 8~64 bits in
length. Different from in SNMPv1 and v2c, the user have to create a account when using SNMPv3.
In the account parameters, key in the security name and password you set in the camera to get
accessing.
 SNMPv1/v2cTrap: Trap is a mechanism that allows the managed device to send messages to
manager instead of waiting passively for polling from the manager. Specify the trap event. When
those events happen, the camera will send the ring message to the Trap Address, which is usually
the manager's IP address. Trap Community means the community that can receive the trap
message.
- Cold Start: The camera starts up or reboots.
- Setting Changed: The SNMP setting is changed.
- Network Disconnected: The network connection was broken down. (The camera
will send trap messages after the network being connected again)

V3 Authentication Failed: A SNMPv3 user account tries to get authentication but
failed. (due to incorrect password or community)

SD Insert / Remove: A microSD/SDHC card is inserted or removed.