TRENDnet TV-IP342PI User Manual page 20

TRENDnet User's Guide
Click the box to enable SNMPv1 or SNMPv2c protocol, and specify the community
name for write (read and write) and read (read-only). The user who use read
community name to access the IP camera cannot modify any data of the camera.
The community name can be any English characters and numbers, and must be
shorter than 31 bits.

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 (similar
with "community name" in v1&v2c) 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 security
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name can be any English characters and numbers, and must be shorter than 31
letters. The password must be 8~64 letters in length.
Different from in SNMPv1 and v2c, the user have to create an account when using
SNMPv3. In the account parameters, key in the security name and password you
set in the camera to get accessing.

SNMPv1/SNMPv2 Trap:
Trap is a mechanism that allows a managed device to send messages to the
manager instead of waiting passively for polling from the manager. Specify the trap
event. When those events occur, 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.
Note: Trap Address must be under the same LAN with IP camera.
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)
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