Dell-ippreflist-MIB

All MIBs › Dell-ippreflist-MIB

Category: Vendor: Dell

Description: Manages IP prefix lists used for route filtering and policy control on Dell network devices.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is Dell-ippreflist-MIB?

This private MIB defines IP prefix-list objects used for route-filtering and routing-policy control on Dell network devices employing the RAD-derived "rl"-prefixed switch/router OS. It exposes configuration data describing named prefix lists, each containing rule or description entries that match on an IP address/prefix length and specify a permit/deny action, similar in concept to Cisco-style prefix lists used in route-map filtering. It is primarily a configuration-status MIB rather than a hardware-health MIB, but it does let an administrator verify the currently active routing-policy configuration (rlIpPrefListAction, rlIpPrefListGeLength/LeLength) is correctly applied, important when diagnosing unexpected route acceptance or rejection. It complements standard IETF routing MIBs by adding the policy-filtering layer that standard routing MIBs don't cover. It is deployed on Dell routers/L3 switches wherever BGP or OSPF route filtering via prefix lists is configured. Network engineers evaluating or troubleshooting this functionality can download the Dell-ippreflist-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Dell-ippreflist-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

Dell router/Layer 3 switch

Monitoring Examples

A network engineer troubleshooting a route that isn't being learned would walk rlIpPrefListTable/rlIpPrefListEntry, filtering on rlIpPrefListName, to inspect rlIpPrefListInetAddr, rlIpPrefListPrefixLength, rlIpPrefListGeLength and rlIpPrefListLeLength alongside rlIpPrefListAction to see whether the prefix is explicitly permitted or denied. Verifying rlIpPrefListEntryType shows whether an entry is an active rule or just a descriptive comment. Finding an unexpected "deny" action matching the prefix in question would explain a missing route.

What Can Be Monitored

prefix list rule entries
matched prefix and length range
permit/deny action
prefix list entry type

Imported Objects

From Dell-MIB

rnd	MODULE-IDENTITY

From INET-ADDRESS-MIB

InetAddress
InetAddressPrefixLength
InetAddressType
InetVersion
InetZoneIndex

From SNMPv2-SMI

IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
TimeTicks
Unsigned32

From SNMPv2-TC

DateAndTime
DisplayString
RowStatus
TEXTUAL-CONVENTION
TimeStamp
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
rlIpPrefList	1.3.6.1.4.1.89.212
rlIpPrefListTable	1.3.6.1.4.1.89.212.1		not-accessible	The IP Prefix List table.
rlIpPrefListEntry	1.3.6.1.4.1.89.212.1.1		not-accessible	An entry in the rlIpPrefListTable.
RLI rlIpPrefListType	1.3.6.1.4.1.89.212.1.1.1	RlIpPrefListType	not-accessible	Prefix List Type.
STR rlIpPrefListName	1.3.6.1.4.1.89.212.1.1.2	DisplayString	not-accessible	Prefix List Name.
U32 rlIpPrefListEntryIndex	1.3.6.1.4.1.89.212.1.1.3	Unsigned32	not-accessible	Entry Index for specific prefix list.
RLI rlIpPrefListEntryType	1.3.6.1.4.1.89.212.1.1.4	RlIpPrefListEntryType	read-write	Prefix list entry type.
IPt rlIpPrefListInetAddrType	1.3.6.1.4.1.89.212.1.1.5	InetAddressType	read-write	The address type of rlIpPrefListIpAddr.
IP rlIpPrefListInetAddr	1.3.6.1.4.1.89.212.1.1.6	InetAddress	read-write	IP address.
INT rlIpPrefListPrefixLength	1.3.6.1.4.1.89.212.1.1.7	INTEGER	read-write	The prefix list can be a number from 0 to 32 for IPv4 address and from 0 to 128 for IPv6 address.
RLI rlIpPrefListAction	1.3.6.1.4.1.89.212.1.1.8	RlIpPrefListActionType	read-write	Drop or permit action for a matching condition.
INT rlIpPrefListGeLength	1.3.6.1.4.1.89.212.1.1.9	INTEGER	read-write	Specifies the lesser value of a range by applying the ge-length argument to the specified range. ge-length repesents the minimum prefix length to be matched.
INT rlIpPrefListLeLength	1.3.6.1.4.1.89.212.1.1.10	INTEGER	read-write	Specifies the greater value of a range by applying the ge-length argument to the specified range. le-length repesents the maximum prefix length to be matched.
STR rlIpPrefListDescription	1.3.6.1.4.1.89.212.1.1.11	DisplayString	read-write	Prefix List Name.
INT rlIpPrefListHitCount	1.3.6.1.4.1.89.212.1.1.12	INTEGER	not-accessible	Match counter.
ROW rlIpPrefListRowStatus	1.3.6.1.4.1.89.212.1.1.13	RowStatus	read-write	Row status.
rlIpPrefListInfoTable	1.3.6.1.4.1.89.212.2		not-accessible	The IP Prefix List Info table.
rlIpPrefListInfoEntry	1.3.6.1.4.1.89.212.2.1		not-accessible	An entry in the rlIpPrefListInfoTable.
RLI rlIpPrefListInfoType	1.3.6.1.4.1.89.212.2.1.1	RlIpPrefListType	not-accessible	Prefix List Type.
STR rlIpPrefListInfoName	1.3.6.1.4.1.89.212.2.1.2	DisplayString	not-accessible	Prefix List Name.
INT rlIpPrefListInfoEntriesNumber	1.3.6.1.4.1.89.212.2.1.3	INTEGER	read-only	Number of entries for specific prefix list.
INT rlIpPrefListInfoRangeEntries	1.3.6.1.4.1.89.212.2.1.4	INTEGER	read-only	Number of entries with range for specific prefix list.
INT rlIpPrefListInfoNextFreeIndex	1.3.6.1.4.1.89.212.2.1.5	INTEGER	read-only	Next free index for specific prefix list.

RFC description

Manages IP prefix lists for IPv4 and IPv6 packet classification and policy control on Dell network devices.

Start monitoring Dell router/Layer 3 switch (IP prefix-list route filtering) 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 Dell-ippreflist-MIB

What Is Dell-ippreflist-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description