CTRON-DHCP-MIB device MIB details by Enterasys Networks Inc
CTRON-DHCP-MIB file content
The SNMP protocol is used to for conveying information and commands between agents and managing entities. SNMP uses the User Datagram Protocol (UDP) as the transport protocol for passing data between managers and agents. The reasons for using UDP for SNMP are, firstly it has low overheads in comparison to TCP, which uses a 3-way hand shake for connection. Secondly, in congested networks, SNMP over TCP is a bad idea because TCP in order to maintain reliability will flood the network with retransmissions.
Management information (MIB) is represented as a collection of managed objects. These objects together form a virtual information base called MIB. An agent may implement many MIBs, but all agents must implement a particular MIB called MIB-II [16]. This standard defines variables for things such as interface statistics (interface speeds, MTU, octets sent, octets received, etc.) as well as various other things pertaining to the system itself (system location, system contact, etc.). The main goal of MIB-II is to provide general TCP/IP management information.
Use ActiveXperts Network Monitor 2024 to import vendor-specific MIB files, inclusing CTRON-DHCP-MIB.
| Vendor: | Enterasys Networks Inc |
|---|---|
| Mib: | CTRON-DHCP-MIB [download] [view objects] |
| Tool: | ActiveXperts Network Monitor 2024 [download] (ships with advanced SNMP/MIB tools) |
CTRON-DHCP-MIB DEFINITIONS ::= BEGIN -- ctron-dhcp-mib.txt Cabletron Dynamic Host Configuration Protocol -- Server MIB. -- Revision: 01.00.00 -- Part Number: -- Date: July 28, 1997 -- Cabletron Systems, Inc. -- 35 Industrial Way, P.O. Box 5005 -- Rochester, NH 03866-5005 -- (603) 332-9400 -- support@ctron.com -- This module provides authoritative definitions for part -- of the naming tree below: -- -- cabletron { enterprises 52 } -- -- This module will be extended, as additional sub-sections -- of this naming tree are defined. -- -- Cabletron Systems reserves the right to make changes in -- specification and other information contained in this document -- without prior notice. The reader should consult Cabletron Systems -- to determine whether any such changes have been made. -- -- In no event shall Cabletron Systems be liable for any incidental, -- indirect, special, or consequential damages whatsoever (including -- but not limited to lost profits) arising out of or related to this -- document or the information contained in it, even if Cabletron -- Systems has been advised of, known, or should have known, the -- possibility of such damages. -- -- Cabletron grants vendors, end-users, and other interested parties -- a non-exclusive license to use this Specification in connection -- with the management of Cabletron products. -- -- Copyright August 1997 Cabletron Systems -- Abstract -- -- This memo defines management objects which are required to support -- Cabletron's implementation of the Dynamic Host Configuration Protocol. -- This MIB supports in part RFC1541 and RFC1533. Specifically, it enables -- a device to be configured as a DHCP server, and allows a limited number -- of DHCP Options. -- Structure of MIB -- -- Objects, in this MIB, are arranged into groups. Each group is organized -- as a set of related objects and is described below. -- The ctDhcpServerStats Group -- -- This group enables DHCP globally, and displays statistics relating -- to the overall DHCP entity. It also allows abandoned addresses to -- be recovered. -- The ctDhcpInterfaceConfig Group -- -- This group contains information describing the assignment -- of interfaces on this device to perform DHCP server functions. -- It allows customization of the server on an interface basis. -- The ctDhcpClientStatusTable Group -- -- This group contains information describing some identifying -- characteristics which are collected for ACTIVE leases. The data -- are deleted when the lease expires. IMPORTS OBJECT-TYPE FROM RFC-1212 DisplayString, PhysAddress FROM RFC1213-MIB nwRtrProtoSuites FROM ROUTER-OIDS nwIpRouter, nwIpMibs, nwIpComponents, nwIpClientServices FROM CTRON-IP-ROUTER-MIB IpAddress, Counter FROM RFC1155-SMI; ctDhcp OBJECT IDENTIFIER ::= { nwIpClientServices 2 } --======== group definitions ============= ctDhcpServerStats OBJECT IDENTIFIER ::= { ctDhcp 1 } ctDhcpInterfaceConfig OBJECT IDENTIFIER ::= { ctDhcp 2 } ctDhcpClientStatusTable OBJECT IDENTIFIER ::= { ctDhcp 3 } --==================================================================== -- --======== ctDhcpServerStats group =============-- -- -- This table enables DHCP globally, and displays statistics relating -- to the overall DHCP entity. ctDhcpAdminStatus OBJECT-TYPE SYNTAX INTEGER { disabled(1), enabled(2) } ACCESS read-write STATUS mandatory DESCRIPTION "This object is used to enable or disable the DHCP server function for the entire device. This object must be set to enabled for the server to function on this device." ::= { ctDhcpServerStats 1} ctDhcpOperStatus OBJECT-TYPE SYNTAX INTEGER { disabled(1), enabled(2) } ACCESS read-only STATUS mandatory DESCRIPTION "Indicates the current operating status of the DHCP server function on this device. The value of ctDhcpIfOperStatus for at least one interface must be set to enabled for this object to be enabled." ::= { ctDhcpServerStats 2} ctDhcpDiscovers OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of discover messages received by the DHCP server since the last reset." ::= { ctDhcpServerStats 3} ctDhcpOffers OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of offer messages sent by the DHCP server since the last reset." ::= { ctDhcpServerStats 4} ctDhcpRequests OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of request messages received by the DHCP server since the last reset." ::= { ctDhcpServerStats 5} ctDhcpDeclines OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of decline messages received by the DHCP server since the last reset." ::= { ctDhcpServerStats 6} ctDhcpReleases OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of release messages received by the DHCP server since the last reset." ::= { ctDhcpServerStats 7} ctDhcpAcks OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of ack messages sent by the DHCP server since the last reset." ::= { ctDhcpServerStats 8} ctDhcpNaks OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of nak messages sent by the DHCP server since the last reset." ::= { ctDhcpServerStats 9} ctDhcpOtherServers OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of messages received by the DHCP server since the last reset which were directed to other servers." ::= { ctDhcpServerStats 10} ctDhcpProtocolErrors OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of protocol errors detected by the DHCP server since the last reset." ::= { ctDhcpServerStats 11} ctDhcpServerTime OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of seconds that this DHCP server has been in operation since its non-volatile memory was last cleared." ::= { ctDhcpServerStats 12} ctDhcpNoOfActiveClients OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of clients who currently have network addresses assigned by this DHCP server." ::= { ctDhcpServerStats 13} ctDhcpReclaimIP OBJECT-TYPE SYNTAX IpAddress ACCESS read-write STATUS mandatory DESCRIPTION "This object is a method of reclaiming abandoned IP addresses. The value reads as 0.0.0.0. Writing to it with an IP address of a client on the active list will remove the entry from the list. It is used to recover addresses with long leases from clients who have left the network without sending a release notice." ::= { ctDhcpServerStats 14 } -- --======== ctDhcpInterfaceConfig group =============-- -- -- This table structure contains information describing the assignment -- of interfaces on this device to perform DHCP server functions. ctDhcpServerIfTable OBJECT-TYPE SYNTAX SEQUENCE OF CtDhcpServerIfEntry ACCESS not-accessible STATUS mandatory DESCRIPTION "This table contains an entry for each port of a DHCP server which is eligible to perform DHCP functions. The table is indexed by ctDhcpIfIndex, which indicates the value of the MIB 2 ifindex which identifies the device's interface for which the entry exists." ::= { ctDhcpInterfaceConfig 1 } ctDhcpServerIfEntry OBJECT-TYPE SYNTAX CtDhcpServerIfEntry ACCESS not-accessible STATUS mandatory DESCRIPTION "A description of the configuration parameters for a single interface on the DHCP server." INDEX { ctDhcpIfIndex } ::= { ctDhcpServerIfTable 1 } CtDhcpServerIfEntry ::= SEQUENCE { ctDhcpIfIndex INTEGER, ctDhcpIfAdminStatus INTEGER, ctDhcpIfOperStatus INTEGER, ctDhcpIfServerAddress IpAddress, ctDhcpIfNetworkAddress IpAddress, ctDhcpIfSubnetMask IpAddress, ctDhcpIfLowestaddress IpAddress, ctDhcpIfHighestAddress IpAddress, ctDhcpIfAddressesUsed INTEGER, ctDhcpIfAddressesFree INTEGER, ctDhcpIfLeasePeriod INTEGER, ctDhcpIfDefaultGateway IpAddress, ctDhcpIfDomainNameServer IpAddress, ctDhcpIfDomainName OCTET STRING, ctDhcpIfWINServer IpAddress } ctDhcpIfIndex OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "A unique value identifying an element in a sequence of entries which belong to the DHCP server interface list. This value ranges from 1 to 2." ::= { ctDhcpServerIfEntry 1 } ctDhcpIfAdminStatus OBJECT-TYPE SYNTAX INTEGER { disabled(1), enabled(2) } ACCESS read-write STATUS mandatory DESCRIPTION "Used to enable and disable the DHCP functions on this interface only. This object must be set to enabled for the DHCP functions to occur on this interface." ::= { ctDhcpServerIfEntry 2 } ctDhcpIfOperStatus OBJECT-TYPE SYNTAX INTEGER { disabled(1), enabled(2), invalid-config(3) } ACCESS read-only STATUS mandatory DESCRIPTION "Indicates the current operating status of the DHCP server function on this interface." ::= { ctDhcpServerIfEntry 3 } ctDhcpIfServerAddress OBJECT-TYPE SYNTAX IpAddress ACCESS read-only STATUS mandatory DESCRIPTION "This is the IP address of the interface which is providing access to the DHCP server for clients which are connected to this network." ::= { ctDhcpServerIfEntry 4 } ctDhcpIfNetworkAddress OBJECT-TYPE SYNTAX IpAddress ACCESS read-write STATUS mandatory DESCRIPTION "This is the IP subnet which is being served by this interface of the DHCP server." ::= { ctDhcpServerIfEntry 5 } ctDhcpIfSubnetMask OBJECT-TYPE SYNTAX IpAddress ACCESS read-write STATUS mandatory DESCRIPTION "This is the subnet mask of the IP subnet which is being served by this interface of the DHCP server." ::= { ctDhcpServerIfEntry 6 } ctDhcpIfLowestaddress OBJECT-TYPE SYNTAX IpAddress ACCESS read-write STATUS mandatory DESCRIPTION "This is the lowest numerical value of the IP address range that will be assigned to clients by this interface of the DHCP server. Its value must be greater or equal to ctDhcpIfNetworkAddress and less than or equal to ctDhcpIfHighestAddress." ::= { ctDhcpServerIfEntry 7 } ctDhcpIfHighestAddress OBJECT-TYPE SYNTAX IpAddress ACCESS read-write STATUS mandatory DESCRIPTION "This is the highest numerical value of the IP address range that will be assigned to clients by this interface of the DHCP server. Its value must be greater or equal to ctDhcpIfLowestaddress but remain within ctDhcpIfNetworkAddress." ::= { ctDhcpServerIfEntry 8 } ctDhcpIfAddressesUsed OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of clients which are currently using IP addresses assigned by this interface of the DHCP server." ::= { ctDhcpServerIfEntry 9 } ctDhcpIfAddressesFree OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "This value is the number of IP addresses that are currently available for distribution by this interface of the DHCP server." ::= { ctDhcpServerIfEntry 10 } ctDhcpIfLeasePeriod OBJECT-TYPE SYNTAX INTEGER ACCESS read-write STATUS mandatory DESCRIPTION "This value is the time period for which an IP address assigned by this interface is valid. The units are seconds. A value of 0 signifys that the lease will never expire." ::= { ctDhcpServerIfEntry 11 } ctDhcpIfDefaultGateway OBJECT-TYPE SYNTAX IpAddress ACCESS read-write STATUS mandatory DESCRIPTION "This value is an DHCP option that can be passed to a client by this interface if it is requested as part of the DHCP process. This value is the IP address of the default gateway to be used by the client." ::= { ctDhcpServerIfEntry 12 } ctDhcpIfDomainNameServer OBJECT-TYPE SYNTAX IpAddress ACCESS read-write STATUS mandatory DESCRIPTION "This value is an DHCP option that can be passed to a client by this interface if it is requested as part of the DHCP process. This value is the IP address of the domain name server to be used by the client." ::= { ctDhcpServerIfEntry 13 } ctDhcpIfDomainName OBJECT-TYPE SYNTAX OCTET STRING ACCESS read-write STATUS mandatory DESCRIPTION "This value is an DHCP option that can be passed to a client by this interface if it is requested as part of the DHCP process. This value is the domain name to be used by the client." ::= { ctDhcpServerIfEntry 14 } ctDhcpIfWINServer OBJECT-TYPE SYNTAX IpAddress ACCESS read-write STATUS mandatory DESCRIPTION "This value is an DHCP option that can be passed to a client by this interface if it is requested as part of the DHCP process. This value is the IP address of the NetBIOS overTCP/IP name server to be used by the client." ::= { ctDhcpServerIfEntry 15 } -- --======== ctDhcpClientStatusTable group =============-- -- -- The table structure contains information describing some statistics -- which are collected for ACTIVE leases. The data are deleted -- when the lease expires. ctDhcpClientStatsTable OBJECT-TYPE SYNTAX SEQUENCE OF CtDhcpClientStatsEntry ACCESS not-accessible STATUS mandatory DESCRIPTION "This table contains an entry for each DHCP client. The table is indexed by ctDhcpClientStatsID, which indicates an arbitrary order of entries." ::= { ctDhcpClientStatusTable 1 } ctDhcpClientStatsEntry OBJECT-TYPE SYNTAX CtDhcpClientStatsEntry ACCESS not-accessible STATUS mandatory DESCRIPTION "A description of a single client, which could be on any of the subnets being served by participating interfaces." INDEX { ctDhcpClientStatsID } ::= { ctDhcpClientStatsTable 1 } CtDhcpClientStatsEntry ::= SEQUENCE { ctDhcpClientStatsID INTEGER, ctDhcpClientName OCTET STRING, ctDhcpClientIP IpAddress, ctDhcpClientID OCTET STRING, ctDhcpEndOfLease INTEGER } ctDhcpClientStatsID OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "A unique value identifying an element in a sequence of active clients which have been given network addresses by this DHCP server." ::= { ctDhcpClientStatsEntry 1 } ctDhcpClientName OBJECT-TYPE SYNTAX OCTET STRING ACCESS read-only STATUS mandatory DESCRIPTION "This is the name of the client as listed by the client in a DHCP request packet." ::= { ctDhcpClientStatsEntry 2} ctDhcpClientIP OBJECT-TYPE SYNTAX IpAddress ACCESS read-only STATUS mandatory DESCRIPTION "This is the assigned IP address of the client during this active connection." ::= { ctDhcpClientStatsEntry 3} ctDhcpClientID OBJECT-TYPE SYNTAX OCTET STRING ACCESS read-only STATUS mandatory DESCRIPTION "This is the ID of the client as listed by the client in a DHCP request packet. It is normally the client's Ethernet MAC address." ::= { ctDhcpClientStatsEntry 4} ctDhcpEndOfLease OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "This value is the time at which the lease of the IP address will expire. The units are seconds and the value is relative to the same starting point as ctDhcpIfServerTime." ::= { ctDhcpClientStatsEntry 5} END