All MIBs › RADLAN-TELNET-MIB
Organization: Radlan - a MARVELL company. Marvell Semiconductor, Inc.
Last Updated: 2008-11-24
Category: System Management, Vendor: RADLAN/Cisco SB
Description:
Configures Telnet server access parameters including port, timeout, and session limits.
Imported Objects
From INET-ADDRESS-MIB
| InetAddress | |
| InetAddressType |
From RADLAN-MIB
| rnd | OBJECT-IDENTITY |
From SNMPv2-SMI
| IpAddress | |
| MODULE-IDENTITY | |
| OBJECT-TYPE |
From SNMPv2-TC
| DisplayString | |
| TruthValue |
What Is RADLAN-TELNET-MIB?
RADLAN-TELNET-MIB is a vendor-specific private MIB from RADLAN/Marvell that configures and monitors the Telnet management service on a switch, covering access credentials, timeouts, and active session tracking. It exposes configuration objects such as rlTelnetPassword and rlTelnetTimeout, along with a live session table (rlTelnetUsersTable/Entry) recording each connected client's address, login time, and session status, plus configurable login banner text. Its monitoring value is chiefly software/service status: an operator can see how many Telnet sessions are currently open, from which client addresses, and since when, which is useful for security auditing and detecting unexpected or lingering management sessions. It has no strong dependency on other standard MIBs beyond general addressing conventions (e.g. InetAddress types) used for client address fields. It is typically deployed on Marvell/RADLAN-based managed switches where Telnet remains an enabled management access method. Engineers can download the RADLAN-TELNET-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in RADLAN-TELNET-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
What Can Be Monitored
- active Telnet session count
- Telnet client source address
- session login time
- session status
- Telnet idle timeout setting
Supported Devices
- Marvell (formerly RADLAN) managed Ethernet switches
Monitoring Examples
An administrator would walk rlTelnetUsersTable (keyed by rlTelnetSessionId) to see rlTelnetSessionClientAddress and rlTelnetSessionLoginTime for each active session, using rlTelnetSessionStatus to spot an established Telnet session from an unexpected client address that may indicate unauthorized access. rlTelnetTimeout can be checked to confirm idle sessions will be dropped after the configured period.
OIDs
| OID symbolic | OID numeric | Type | Access | Description |
|---|---|---|---|---|
| rlTelnet | 1.3.6.1.4.1.89.58 | This private MIB module defines telnet private MIBs. | ||
| INT rlTelnetMibVersion | 1.3.6.1.4.1.89.58.1 | INTEGER | read-only | MIB's version, the current version is 1. |
| STR rlTelnetPassword | 1.3.6.1.4.1.89.58.2 | DisplayString | read-write | Telnet Password |
| INT rlTelnetTimeout | 1.3.6.1.4.1.89.58.3 | INTEGER | read-write | The number of minutes after which the TCP connection is closed if no activity is detected from the Client |
| rlTelnetUsersTable | 1.3.6.1.4.1.89.58.4 | not-accessible | This table hold information about current telnet sessions | |
| rlTelnetUsersEntry | 1.3.6.1.4.1.89.58.4.1 | not-accessible | The row definition for this table. | |
| INT rlTelnetSessionId | 1.3.6.1.4.1.89.58.4.1.1 | INTEGER | read-only | Telnet Session ID |
| IPt rlTelnetSessionClientAddressType | 1.3.6.1.4.1.89.58.4.1.2 | InetAddressType | read-only | Telnet Session Client Inet address type |
| IP rlTelnetSessionClientAddress | 1.3.6.1.4.1.89.58.4.1.3 | InetAddress | read-only | Telnet Session Client Inet address |
| STR rlTelnetSessionLoginTime | 1.3.6.1.4.1.89.58.4.1.4 | DisplayString | read-only | Telnet Session Login Time string |
| INT rlTelnetSessionStatus | 1.3.6.1.4.1.89.58.4.1.5 | INTEGER | read-write | Telnet Session status. After status has been set to diconnect the sessions is closed and the matching entry is deleted from the table. |
| STR rlTelnetLoginBanner | 1.3.6.1.4.1.89.58.5 | DisplayString | read-write | Telnet Login Banner. When telnet connection is established, the banner is the concatanation of this MIB and rlTelnetSecondLoginBanner. |
| STR rlTelnetSecondLoginBanner | 1.3.6.1.4.1.89.58.6 | DisplayString | read-write | Telnet Login Banner Extension. When telnet connection is established, the banner is the concatanation of rlTelnetLoginBanner and this MIB |
| T/F rlTelnetEnable | 1.3.6.1.4.1.89.58.7 | TruthValue | read-write | command added. Communication via this MIB. |
RFC description
Radlan Telnet access control MIB for managing telnet session configuration and active user monitoring.
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