CISCOSB-rlIP-MIB

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Organization: Cisco Systems, Inc.

Last Updated: 2013-06-16

Category: Vendor: Cisco

Description: Extends IP layer management including ARP, routing table, and IP parameters on Cisco Small Business devices.

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What Is CISCOSB-rlIP-MIB?

This Cisco Small Business proprietary MIB extends standard IP-layer management with vendor-specific objects covering IP address assignment (including IPv6 auto-configured addresses), address origin tracking, and address lifecycle timestamps. It exposes primarily configuration and address-table data: per-interface IP addresses, their type (IPv4/IPv6), origin (manual, DHCP, link-layer, random), prefix, and row status, plus creation/last-changed timestamps. While not a hardware-health MIB, its address tables let an operator monitor whether interfaces have obtained or retained expected addresses, useful for diagnosing IP connectivity/configuration problems, and the row-status and timestamp fields reveal recent configuration churn. It closely parallels and extends the IETF IP-MIB (RFC 4293)/IP-ADDRESS-MIB conventions for representing IP addresses per interface. It is deployed on Cisco Small Business switches/routers that need to track both static and dynamically assigned (including SLAAC IPv6) addresses per interface, and a CISCOSB-rlIP-MIB download provides the object definitions needed to poll this address data.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCOSB-rlIP-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.

Supported Devices

Cisco Small Business managed switch/router

Monitoring Examples

Polling rlIpAddressTable for a given rlIpAddressIfIndex returns rlIpAddressAddr and rlIpAddressAddrType, with rlIpAddressOrigin indicating whether the address was manually configured or auto-derived (e.g., from an rlIpAddressGeneralPrefixName for IPv6); an admin would check this to confirm an interface picked up the expected prefix. rlIpAddressLastChanged reveals if an address was recently modified, which combined with rlIpAddressStatus (active vs. notInService) helps diagnose why a device suddenly lost or changed its IP address.

What Can Be Monitored

interface IP address assignment
IPv4/IPv6 address type
address origin (static/DHCP/SLAAC)
address row status
address creation/last-changed time

Imported Objects

From CISCOSB-MIB

switch001

MODULE-IDENTITY

From IF-MIB

InterfaceIndex

From INET-ADDRESS-MIB

InetAddress
InetAddressPrefixLength
InetAddressType
InetVersion
InetZoneIndex

From IP-MIB

IpAddressOriginTC
IpAddressStatusTC

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32
mib-2
zeroDotZero

From SNMPv2-TC

DisplayString
PhysAddress
RowPointer
RowStatus
StorageType
TEXTUAL-CONVENTION
TestAndIncr
TimeStamp
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
rlIp	1.3.6.1.4.1.9.6.1.101.250			The private MIB module definition for Auto Configured IPv6 Address representation.
rlIpAddressTable	1.3.6.1.4.1.9.6.1.101.250.1		not-accessible	This table contains addressing information relevant to the entity's interfaces. in addition to ipAddressTable defined in standard MIB a represenattion of IPv6 addresses based on additionl address origin such as EUI-64, general prefix etc. In this case the address information is partial address information. Together with the address origin and the general prefix (when needed) user can construct full address information. The index (key) for this table includes this information additionally to the address.
rlIpAddressEntry	1.3.6.1.4.1.9.6.1.101.250.1.1		not-accessible	An address mapping for a particular interface.
IPt rlIpAddressAddrType	1.3.6.1.4.1.9.6.1.101.250.1.1.1	InetAddressType	not-accessible	The address type of rlIpAddressAddr.
IP rlIpAddressAddr	1.3.6.1.4.1.9.6.1.101.250.1.1.2	InetAddress	not-accessible	The IP address to which this entry's addressing information pertains. The address type of this object is specified in rlIpAddressAddrType. In case of auto-configure address such as eui-64, general-prefix and others it contains the partial address before appropriate manipulation. Implementors need to be aware that if the size of rlIpAddressAddr exceeds 116 octets, then OIDS of instances of columns in this row will have more than 128 sub-identifiers and cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3.
NUM rlIpAddressOrigin	1.3.6.1.4.1.9.6.1.101.250.1.1.3	RlIpAddressOriginTC	not-accessible	The origin of the address.
STR rlIpAddressGeneralPrefixName	1.3.6.1.4.1.9.6.1.101.250.1.1.4	DisplayString	not-accessible	The name assigned to the prefix.
NUM rlIpAddressIfIndex	1.3.6.1.4.1.9.6.1.101.250.1.1.5	InterfaceIndex	read-create	The index value that uniquely identifies the interface to which this entry is applicable. The interface identified by a particular value of this index is the same interface as identified by the same value of the IF-MIB's ifIndex.
INT rlIpAddressExtdType	1.3.6.1.4.1.9.6.1.101.250.1.1.6	INTEGER	read-create	Extend standard field ipAddressType to multicast
NUM rlIpAddressPrefix	1.3.6.1.4.1.9.6.1.101.250.1.1.7	RowPointer	read-only	A pointer to the row in the prefix table to which this address belongs. May be { 0 0 } if there is no such row.
ADR rlIpAddressStatus	1.3.6.1.4.1.9.6.1.101.250.1.1.8	IpAddressStatusTC	read-create	The status of the address, describing if the address can be used for communication. In the absence of other information, an IPv4 address is always preferred(1).
TIM rlIpAddressCreated	1.3.6.1.4.1.9.6.1.101.250.1.1.9	TimeStamp	read-only	The value of sysUpTime at the time this entry was created. If this entry was created prior to the last re- initialization of the local network management subsystem, then this object contains a zero value.
TIM rlIpAddressLastChanged	1.3.6.1.4.1.9.6.1.101.250.1.1.10	TimeStamp	read-only	The value of sysUpTime at the time this entry was last updated. If this entry was updated prior to the last re- initialization of the local network management subsystem, then this object contains a zero value.
ROW rlIpAddressRowStatus	1.3.6.1.4.1.9.6.1.101.250.1.1.11	RowStatus	read-create	The status of this conceptual row. The RowStatus TC requires that this DESCRIPTION clause states under which circumstances other objects in this row can be modified. The value of this object has no effect on whether other objects in this conceptual row can be modified. A conceptual row can not be made active until the rlIpAddressIfIndex has been set to a valid index.
STO rlIpAddressStorageType	1.3.6.1.4.1.9.6.1.101.250.1.1.12	StorageType	read-create	The storage type for this conceptual row. If this object has a value of 'permanent', then no other objects are required to be able to be modified.
ADR rlIpAddressExtdPrefixLength	1.3.6.1.4.1.9.6.1.101.250.1.1.13	InetAddressPrefixLength	read-create	The prefix length of this address.
IP rlIpAddressCompleteAddr	1.3.6.1.4.1.9.6.1.101.250.1.1.14	InetAddress	read-only	The Complete IP address to which this entry's addressing information pertains. In case of auto-configure address such as eui-64, general-prefix and others it contains the complete address after appropriate manipulation

RFC description

Cisco Small Business IP MIB extension for managing IPv6 auto-configured addresses and address origins.

Start monitoring Cisco Small Business managed switch/router with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download CISCOSB-rlIP-MIB

What Is CISCOSB-rlIP-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description