MIB Viewer — SNMP MIB Browser & Database

MIB Viewer is a free SNMP MIB browser and database with over 19,000 MIBs and 2,500,000 OIDs, covering both the standard, cross-vendor MIBs every device supports and the enterprise-specific MIBs published by individual hardware vendors. Browse the full MIB list, search by name or OID, or use the OID lookup to trace any object's exact position in the tree — view its syntax, access level, and description, and generate a ready-to-run SNMP command, all in your browser, with nothing to install and no account required. The database grows continuously, and beyond the lookup tool itself, the site includes a growing library of written guides and reference material covering SNMP concepts, vendor-specific configuration, DOCSIS cable modem and CMTS monitoring, and troubleshooting — see the Guides menu above, or the highlights below.

Online MIB Browser

MIB Viewer works as a browser for SNMP MIB files the way a code editor browses a file tree: pick a module from the sidebar, or search by name, and the full text of that MIB opens on the right — every object, table, and notification it defines, with syntax, access level, and description rendered in a readable format instead of raw ASN.1. It runs entirely online, in your browser, with nothing to install — just open the site and start browsing.

How MIB files are structured →

MIB Database

Behind the browser is a growing database spanning the standard, cross-vendor MIBs every SNMP-capable device implements — IF-MIB, SNMPv2-MIB, HOST-RESOURCES-MIB, and the rest — plus the enterprise-specific MIBs published by hundreds of individual hardware vendors under their own IANA-assigned numbers, organized and searchable by vendor name or enterprise number.

Search MIBs by vendor →

OID Search & Lookup

Every value an SNMP agent can report lives at a specific OID — a dotted numeric address like 1.3.6.1.2.1.1.1 — and this OID search resolves that address in either direction: paste a raw OID to look up the object it names, or search by name to find its OID, complete with its exact position in the MIB tree.

Try an OID lookup: sysDescr (1.3.6.1.2.1.1.1) →

MIB Browser

MIB Viewer Desktop is a native app for Mac and Windows that brings the same MIB browsing and OID lookup to your desktop, with MIBs and uploaded files saved locally across sessions instead of re-loading them in a browser tab each time. It's built for people who work with the same set of MIBs repeatedly and want them available offline, without a browser window open.

Get MIB Viewer Desktop →

MIB File Reader

Have your own MIB file? Drop it on the upload zone in the sidebar (or click to browse) and it's parsed and read right away, with the same navigable view as any MIB already in the database — every object, syntax, and description laid out in full. It's sent to the server to be parsed but isn't added to the shared, publicly searchable database; it stays scoped to your own session.

Upload a MIB file to read →

SNMP Translate

The bulk translate tool takes a whole batch of OIDs or object names at once — paste them in or upload a file — and translates every line to the other form in one pass, which is useful for things like resolving the raw OIDs in a captured trap log or an SNMP walk output back to readable names.

Bulk translate OIDs & names →

SNMP & MIB Basics

What's a MIB?

A MIB (Management Information Base) defines the data a device can report over SNMP — things like interface counters, system uptime, or CPU load — organizing each value under a name and a fixed numeric address. Every MIB module declares a tree of related objects, and a device typically implements dozens of MIBs at once: a handful of universal ones every vendor supports, plus whatever proprietary ones that specific vendor has published.

What's SNMP?

SNMP (Simple Network Management Protocol) is how routers, switches, servers, and other network devices report status and statistics back to monitoring tools. It's the transport; MIBs are the vocabulary that gives the data it carries any meaning. Most monitoring platforms — Zabbix, PRTG, LibreNMS, Prometheus's SNMP exporter, and plenty of others — rely on this same underlying protocol and MIB structure.

What's an OID?

An OID is the actual address of one piece of data — a dotted sequence like 1.3.6.1.2.1.1.1, read from the root of a shared global tree down to one specific object. Names are for humans; OIDs are what actually gets sent over the wire. Every vendor's private MIBs live under that vendor's own reserved branch of the same tree, which is what lets one numbering system cover both universal and proprietary data.

What is a MIB browser?

A MIB browser is a tool for reading and navigating MIB files — the definitions that describe what data a device can report over SNMP. Instead of reading raw ASN.1 text by hand, a MIB browser renders each object's name, OID, syntax, and description in a searchable, navigable form. MIB Viewer does this entirely in your browser, for MIBs already in its database or ones you upload yourself.

What is an OID lookup tool?

An OID lookup tool resolves an OID — a dotted numeric address like 1.3.6.1.2.1.1.1 — to the object it identifies, and vice versa: name to OID. MIB Viewer's OID search does both, and shows the object's full definition and its exact position in the MIB tree, not just a bare name.

Is MIB Viewer free to use?

Yes — browsing MIBs, searching OIDs, uploading your own MIB files, and reading the guides are all free, with no account required. MIB Viewer Desktop is a separate paid native app for people who want MIBs saved locally across sessions and offline access, but the web tool itself has no paywall.

Can I look up a MIB from a specific vendor?

Yes — use Search Vendor MIBs under Tools to list every MIB a given vendor has published, searchable by vendor name or IANA enterprise number.

Guides & Resources

Beyond the lookup tool, the site includes practical, hands-on guides and reference material — installing and using the standard SNMP tools, configuring SNMP on specific vendor hardware, monitoring DOCSIS cable modems and CMTSs, and working through the errors people run into most. A few places to start:

SNMP Fundamentals

The manager/agent model, MIBs and OIDs, versions, access control, and all six core operations in one place.

Using net-snmp

Installing the standard Linux SNMP toolkit, the client commands, running an agent, receiving traps, and loading MIBs into each one.

SNMPv3

A complete deep dive into SNMPv3's security model — USM, authentication and privacy protocols, engine IDs, VACM, and configuring a real user.

SNMP vs Telemetry

How SNMP's pull-based polling compares to push-based streaming telemetry (gNMI, NETCONF/YANG) — architecture, tradeoffs, and when to use each.

Understanding MIBs

How objects, tables, and notifications are actually defined, and how vendor-specific numbering keeps everyone's private OIDs from colliding.

Troubleshooting SNMP

From a plain timeout to SNMPv3 auth failures to a MIB that won't parse — working through what actually went wrong and why.

Searching OIDs

Starting from a real device's sysObjectID, searching by name or number, and filtering a MIB down to just the objects you need.

Uploading MIBs

Parsing your own MIB file in-browser, what happens to it afterward, and troubleshooting a file that won't load.

Bulk Translate

Translating a whole batch of OIDs or object names at once — pasted in or uploaded — useful for trap logs and SNMP walk output.

SNMP History

From SNMPv1 in 1988 through v2c and v3, and how newer approaches like streaming telemetry fit alongside it today.

Get started

Search for a MIB or OID above, or pick one from the list on the left.

Have your own MIB file? Drop it on the upload zone in the sidebar (or click to browse) to parse and explore it right away. It's sent to the server to be parsed and isn't added to the shared, publicly searchable database — it stays scoped to your own session in the tree on the left.

New here? The Guides menu above is the place to start if you want the concepts explained rather than just looked up.

CISCOSB-RADIUS-COA

40 objects

The private MIB module definition for CoA Radius feature in CISCOSB devices.

Imported Objects

CISCOSB-MIB	-- RFC2851 switch001 rlAAAEap rlRadius
INET-ADDRESS-MIB	InetAddress InetAddressIPv6 InetAddressType
SNMPv2-SMI	Counter32 IpAddress MODULE-IDENTITY OBJECT-TYPE Unsigned32
SNMPv2-TC	DateAndTime DisplayString RowStatus TEXTUAL-CONVENTION TimeStamp TruthValue

OID	Name	Access	Status	Description
1.3.6.1.4.1.9.6.1.101.247	IdentityrlRadiusCoA			The private MIB module definition for CoA Radius feature in CISCOSB devices.
1.3.6.1.4.1.9.6.1.101.247.1	TablerlRadiusCoAClientInetTable	not-accessible	current	The table listing the RADIUS CoA entry.
1.3.6.1.4.1.9.6.1.101.247.1.1	RowrlRadiusCoAClientInetEntry	not-accessible	current	The entry in RADIUS CoA table.
1.3.6.1.4.1.9.6.1.101.247.1.1.1	ColumnrlRadiusCoAClientInetAddressType	read-write	current	The Inet address type of RADIUS CoA referred to in this table entry.
1.3.6.1.4.1.9.6.1.101.247.1.1.2	ColumnrlRadiusCoAClientInetAddress	read-write	current	The Inet address of the RADIUS CoA referred to in this table entry.
1.3.6.1.4.1.9.6.1.101.247.1.1.3	ColumnrlRadiusCoAClientInetKey	read-write	current	Secret key to be shared with this RADIUS CoA. The key with length of 160 means the key is not set
1.3.6.1.4.1.9.6.1.101.247.1.1.4	ColumnrlRadiusCoAClientInetKeyDigest	read-only	current	The Digest of the rlRadiusCoAClientInetKey
1.3.6.1.4.1.9.6.1.101.247.1.1.5	ColumnrlRadiusCoAClientInetClearCountersAction	read-write	current	Set to TRUE to clear the Radius CoA Client counters.
1.3.6.1.4.1.9.6.1.101.247.1.1.6	ColumnrlRadiusCoAClientInetRowStatus	read-write	current	Radius CoA Client Entry status
1.3.6.1.4.1.9.6.1.101.247.2	TablerlRadiusCoAClientInetCountersTable	not-accessible	current	MIB to show radius CoA counters per client
1.3.6.1.4.1.9.6.1.101.247.2.1	RowrlRadiusCoAClientInetCountersEntry	not-accessible	current	The row definition for this table.
1.3.6.1.4.1.9.6.1.101.247.2.1.1	ColumnrlRadiusCoAClientInetAverageResponseTime	read-only	current	Average Ack response time in milliseconds
1.3.6.1.4.1.9.6.1.101.247.2.1.2	ColumnrlRadiusCoAClientInetCoARequests	read-only	current	Counts the CoA Requests received from CoA clients
1.3.6.1.4.1.9.6.1.101.247.2.1.3	ColumnrlRadiusCoAClientInetCoATransactions	read-only	current	Counts CoA completed transactions. A Completed transaction occurs once the Switch send an CoA-ACK or CoA-NAK in response to a CoA-Request from a CoA client
1.3.6.1.4.1.9.6.1.101.247.2.1.4	ColumnrlRadiusCoAClientInetCoARetransmissions	read-only	current	Counts received retransmitted CoA Requests. A retransmitted CoA-Requests is a Request in which the Request identifier is identical to the identifier of a previ…
1.3.6.1.4.1.9.6.1.101.247.2.1.5	ColumnrlRadiusCoAClientInetCoAActiveTransactions	read-only	current	Transactions that are currently active. An active transaction is a transaction in which a CoA-Request from a COA Client has been received but an CoA-ACK or CoA…
1.3.6.1.4.1.9.6.1.101.247.2.1.6	ColumnrlRadiusCoAClientInetCoAAckResponses	read-only	current	Counts the number of CoA-Ack responses sent by the switch
1.3.6.1.4.1.9.6.1.101.247.2.1.7	ColumnrlRadiusCoAClientInetCoANakResponses	read-only	current	Counts the number of CoA-Nak responses sent by the switch
1.3.6.1.4.1.9.6.1.101.247.2.1.8	ColumnrlRadiusCoAClientInetCoAInvalidRequests	read-only	current	Counts invalid CoA-requests received by the switch. An invalid request is one of the following: - A Request in which the secret in the Request does not match t…
1.3.6.1.4.1.9.6.1.101.247.2.1.9	ColumnrlRadiusCoAClientInetCoAErrors	read-only	current	Counts errors upon receiving CoA-Request. An error can be an internal error in which a request cannot be processed due to resource issue, or if a secret has no…
1.3.6.1.4.1.9.6.1.101.247.2.1.10	ColumnrlRadiusCoAClientInetDisconnectRequests	read-only	current	Counts the Disconnect Requests received from CoA clients
1.3.6.1.4.1.9.6.1.101.247.2.1.11	ColumnrlRadiusCoAClientInetDisconnectTransactions	read-only	current	Counts Disconnect completed transactions. A Completed transaction occurs once the Switch send an Disconnect-ACK or Disconnect-NAK in response to a Disconnect-R…
1.3.6.1.4.1.9.6.1.101.247.2.1.12	ColumnrlRadiusCoAClientInetDisconnectRetransmissions	read-only	current	Counts received retransmitted Disconnect Requests. A retransmitted Disconnect-Requests is a Request in which the Request identifier is identical to the identif…
1.3.6.1.4.1.9.6.1.101.247.2.1.13	ColumnrlRadiusCoAClientInetDisconnectActiveTransactions	read-only	current	Transactions that are currently active. An active transaction is a transaction in which a Disconnect-Request from a COA Client has been received but an Disconn…
1.3.6.1.4.1.9.6.1.101.247.2.1.14	ColumnrlRadiusCoAClientInetDisconnectAckResponses	read-only	current	Counts the number of Disconnect-Ack responses sent by the switch
1.3.6.1.4.1.9.6.1.101.247.2.1.15	ColumnrlRadiusCoAClientInetDisconnectNakResponses	read-only	current	Counts the number of Disconnect-Nak responses sent by the switch
1.3.6.1.4.1.9.6.1.101.247.2.1.16	ColumnrlRadiusCoAClientInetDisconnectInvalidRequests	read-only	current	Counts invalid Disconnect-requests received by the switch. An invalid request is one of the following: - A Request in which the secret in the Request does not …
1.3.6.1.4.1.9.6.1.101.247.2.1.17	ColumnrlRadiusCoAClientInetDisconnectErrors	read-only	current	Counts errors upon receiving Disconnect-Request. An error can be an internal error in which a request cannot be processed due to resource issue, or if a secret…
1.3.6.1.4.1.9.6.1.101.247.3	ScalarrlRadiusCoAClearCountersAction	read-write	current	To clear Radius CoA counters for all clients.
1.3.6.1.4.1.9.6.1.101.247.4	ScalarrlRadiusCoARxUdpPort	read-write	current	To define the UDP port used for Radius CoA requests.
1.3.6.1.4.1.9.6.1.101.247.5	ScalarrlRadiusCoAGlobalKey	read-write	current	Global Secret key to be shared with this all Radius CoA clients. The key with length of 160 means the key is not set
1.3.6.1.4.1.9.6.1.101.247.6	ScalarrlRadiusCoAGlobalKeyDigest	read-only	current	Global Secret key Digest
1.3.6.1.4.1.9.6.1.101.247.7	ScalarrlRadiusCoAIgnoreServerKey	read-write	current	To ignore the CoA server-key
1.3.6.1.4.1.9.6.1.101.247.8	ScalarrlRadiusCoAEventTimeStampDropPacket	read-write	current	To configure the device to discard a Packet of Disconnect (POD) Request or Change of Authorization (CoA) Request that do not include an Event-Timestamp Attribu…
1.3.6.1.4.1.9.6.1.101.247.9	ScalarrlRadiusCoAUserNameDomainStrippingMethod	read-write	current	To enable and define the behavior for username domain stripping for received PoD and CoA Requests
1.3.6.1.4.1.9.6.1.101.247.10	ScalarrlRadiusCoAUserNameDomainStrippingDelimiter	read-write	current	To configure the username domain delimitator for received PoD and CoA Requests
1.3.6.1.4.1.9.6.1.101.247.11	ScalarrlAAAEapIgnoreCommandDisablePort	read-write	current	To configure the device to ignore a RADIUS Change of Authorization (CoA) disable port command VSA
1.3.6.1.4.1.9.6.1.101.247.12	ScalarrlAAAEapIgnoreCommandBouncePort	read-write	current	To configure the device to ignore a RADIUS Change of Authorization (CoA) bounce port command VSA

Type Definitions

Name	Syntax	Status	Description
RlRadiusCoAUserNameDomainDelimiter	INTEGER { at(1), hyphen(2), slash(3), backSlash(4), hash(5), dollar(6), percent(7) }	current	To configure the username domain delimitator for received PoD and CoA Requests
RlRadiusCoAUserNameDomainStrippingType	INTEGER { disable(0), leftToRight(1), rightToLeft(2) }	current	Behavior for username domain stripping for received PoD and CoA

MIB Viewer — SNMP MIB Browser & Database

Online MIB Browser

MIB Database

OID Search & Lookup

MIB Browser

MIB File Reader

SNMP Translate

SNMP & MIB Basics

What's a MIB?

What's SNMP?

What's an OID?

Frequently Asked Questions

What is a MIB browser?

What is an OID lookup tool?

Is MIB Viewer free to use?

Can I look up a MIB from a specific vendor?

Guides & Resources

SNMP Fundamentals

Using net-snmp

SNMPv3

SNMP vs Telemetry

Understanding MIBs

Troubleshooting SNMP

Searching OIDs

Uploading MIBs

Bulk Translate

SNMP History

Get started

CISCOSB-RADIUS-COA

Bulk Translate

Search Vendor MIBs

Search Vendor Traps