User guide

Configuration Procedure: Web Interface
Chapter 15 Configuring SNMP 72
SNMP Management Agent
Each managed node contains at least one agent—a component that responds to requests from the network
manager—that retrieves network management information from its node and notifies the manager when
significant events occur.
SNMP Traps
A mechanism defined by SNMP is called a trap, which is a report or “alarm” from a managed node to an SNMP
manager that a significant event has occurred.
MIB Support
The agent supports the following MIBs:
• Read-write for MIB II (RFC 1213), which is an Internet-standard MIB, consisting of managed objects from
the systems, interfaces, IP, ICMP, TCP, UDP, transmission, and SNMP group
• Read-write for the character-stream devices using SMIv2 MIB (RFC 1658)
• Read-write for the RS-232-like hardware devices MIB (RFC 1659)
• Read-write for the Digi One and PortServer TS 2/4 IP Network Control Protocol of the Point-to-Point Proto-
col MIB (RFC 1473)
Message Support
The SNMP agent supports the Set, Get, GetNext, and Trap messages as defined in RFC 1157. These messages
are used as follows:
• Set, which means set the value of a specific object from one of the supported MIBs
• Get, which means retrieve the value of a specific object form one of the supported MIBs
• GetNext, which means retrieve the value of the next object in the MIB
• Trap, which means send traps to the manager when a particular type of significant event occurs
Supported Traps
The agent can send traps when any of the following occur:
• Cold starts (Digi One and PortServer TS 2/4 initializes)
• Authentication failures
• Login attempts
Configuration Procedure: Web Interface
1. Access the web interface by entering the Digi One and PortServer TS 2/4 IP address in a browser’s URL win-
dow.
2. Log in to the Digi One and PortServer TS 2/4 as root.
The default password is dbps, which should be changed. See the newpass command in the Digi One/PortS-
erver TS Command Reference for information on changing passwords.
3. Select Configure and then SNMP from the menu.
4. Fill in the configuration fields and then press Submit.