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.

ELTEX-MES-ISS-SNOOP-MIB

39 objects

IGMP and MLD Snooping MIB definitions.

Imported Objects

ARICENT-SNOOP-MIB	fsSnoopPortEntry fsSnoopVlanFilterEntry
ELTEX-MES-ISS-MIB	eltMesIss
IF-MIB	InterfaceIndex InterfaceIndexOrZero
INET-ADDRESS-MIB	InetAddress InetAddressType
SNMPv2-SMI	MODULE-IDENTITY OBJECT-TYPE Unsigned32
SNMPv2-TC	MacAddress RowStatus TEXTUAL-CONVENTION TimeStamp TruthValue

OID	Name	Access	Status	Description
1.3.6.1.4.1.35265.1.139.8	IdentityeltMesIssSnoopMIB			IGMP and MLD Snooping MIB definitions.
1.3.6.1.4.1.35265.1.139.8.1	NodeeltMesIssSnoopObjects
1.3.6.1.4.1.35265.1.139.8.1.1	NodeeltMesIssSnoopGlobals
1.3.6.1.4.1.35265.1.139.8.1.1.1	ScalareltMesIssSnoopClearGroups	read-write	current	This object is used to clear IGMP/MLD snooping dynamic groups. Setting value to 0 will clear whole table, setting exact VLAN ID will clear all groups that belo…
1.3.6.1.4.1.35265.1.139.8.1.1.2	ScalareltMesIssSnoopAuthCacheClear	read-write	current	This object is used to clear IGMP/MLD snooping authentication cache entries for interface index. Setting value to 0 will clear whole table.
1.3.6.1.4.1.35265.1.139.8.1.2	NodeeltMesIssSnoopVlan
1.3.6.1.4.1.35265.1.139.8.1.2.1	TableeltMesIssSnoopVlanFilterTable	not-accessible	current	This table augments the fsSnoopVlanFilterTable table.
1.3.6.1.4.1.35265.1.139.8.1.2.1.1	RoweltMesIssSnoopVlanFilterEntry	not-accessible	current	This entry augments the fsSnoopVlanFilterEntry entry.
1.3.6.1.4.1.35265.1.139.8.1.2.1.1.1	ColumneltMesIssSnoopVlanCoS	read-write	current	Assign IEEE 802.1p value (0-7) to the snooping packets in this VLAN. Value 255 means CoS will not be changed.
1.3.6.1.4.1.35265.1.139.8.1.2.1.1.2	ColumneltMesIssSnoopSparseMode	read-write	current	This object is used to enable or disable the snooping module functioning in the sparse mode in specific VLAN. In the non-sparse mode, the module will forward t…
1.3.6.1.4.1.35265.1.139.8.1.2.1.1.3	ColumneltMesIssSnoopVlanReplaceSourceIp	read-write	current	Before forwarding the report packet sent by the host, the source IP address in the packet will be replaced by this IP address. Default value of 0.0.0.0 means t…
1.3.6.1.4.1.35265.1.139.8.1.3	NodeeltMesIssSnoopPort
1.3.6.1.4.1.35265.1.139.8.1.3.1	TableeltMesIssSnoopPortTable	not-accessible	current	This table augments the fsSnoopPortTable table.
1.3.6.1.4.1.35265.1.139.8.1.3.1.1	RoweltMesIssSnoopPortEntry	not-accessible	current	This entry augments the fsSnoopPortEntry entry.
1.3.6.1.4.1.35265.1.139.8.1.3.1.1.1	ColumneltMesIssSnoopProxyReportingTrust	read-write	current	This object is used to set the Proxy reporting trusted mode for interface. Setting the trusted mode will cause the module to forward IGMP traffic from clients'…
1.3.6.1.4.1.35265.1.139.8.1.3.2	TableeltMesIssSnoopAuthPortTable	not-accessible	current	The table lists the IGMP/MLD snooping authentication configuration.
1.3.6.1.4.1.35265.1.139.8.1.3.2.1	RoweltMesIssSnoopAuthPortEntry	not-accessible	current	An entry containing assignment of IGMP/MLD snooping authentication config per interface.
1.3.6.1.4.1.35265.1.139.8.1.3.2.1.1	ColumneltMesIssSnoopAuthPortIfIndex	not-accessible	current	Interface index.
1.3.6.1.4.1.35265.1.139.8.1.3.2.1.2	ColumneltMesIssSnoopAuthPortInetAddressType	not-accessible	current	Inet address type (ipv4/ipv6).
1.3.6.1.4.1.35265.1.139.8.1.3.2.1.3	ColumneltMesIssSnoopAuthPortType	read-write	current	This object is used to set the authentication type. By default, the authentication is disabled.
1.3.6.1.4.1.35265.1.139.8.1.3.2.1.4	ColumneltMesIssSnoopAuthPortRequired	read-write	current	If enabled - discard all IGMP/MLD report messages in case when all authentication servers are unavailable.
1.3.6.1.4.1.35265.1.139.8.1.3.2.1.5	ColumneltMesIssSnoopAuthPortForwardFirstEnable	read-write	current	Creates forward entry at the moment when the request to the authentication server is formed. If the answer is positive, the entry remains, otherwise it is dele…
1.3.6.1.4.1.35265.1.139.8.1.3.2.1.6	ColumneltMesIssSnoopAuthPortExceptionProfileId	read-write	current	Multicast profile index with authorization exceptions for the interface. Groups will be automatically permitted/denied based on rules in configured profile. No…
1.3.6.1.4.1.35265.1.139.8.1.3.3	TableeltMesIssSnoopAuthCacheTable	not-accessible	current	The table lists the IGMP/MLD snooping authentication cache information.
1.3.6.1.4.1.35265.1.139.8.1.3.3.1	RoweltMesIssSnoopAuthCacheEntry	not-accessible	current	An entry containing assignment of IGMP/MLD snooping entry authentication cache info.
1.3.6.1.4.1.35265.1.139.8.1.3.3.1.1	ColumneltMesIssSnoopAuthCacheIfIndex	not-accessible	current	Interface index behind which the IGMP/MLD client is located.
1.3.6.1.4.1.35265.1.139.8.1.3.3.1.2	ColumneltMesIssSnoopAuthCacheClientMac	not-accessible	current	Client MAC address.
1.3.6.1.4.1.35265.1.139.8.1.3.3.1.3	ColumneltMesIssSnoopAuthCacheInetAddressType	not-accessible	current	Inet address type (IPv4/IPv6).
1.3.6.1.4.1.35265.1.139.8.1.3.3.1.4	ColumneltMesIssSnoopAuthCacheClientIpAddr	not-accessible	current	Client IP address.
1.3.6.1.4.1.35265.1.139.8.1.3.3.1.5	ColumneltMesIssSnoopAuthCacheGroupIpAddr	not-accessible	current	IGMP/MLD group IP address.
1.3.6.1.4.1.35265.1.139.8.1.3.3.1.6	ColumneltMesIssSnoopAuthCacheAuthServerType	read-only	current	Server authentication type.
1.3.6.1.4.1.35265.1.139.8.1.3.3.1.7	ColumneltMesIssSnoopAuthCacheAuthServerIpAddr	read-only	current	Authentication server IP address.
1.3.6.1.4.1.35265.1.139.8.1.3.3.1.8	ColumneltMesIssSnoopAuthCacheTimeStamp	read-only	current	Time of creating entry in seconds since system startup.
1.3.6.1.4.1.35265.1.139.8.1.3.3.1.9	ColumneltMesIssSnoopAuthCacheStatus	read-only	current	Status of IGMP/MLD report authentication (see EltMesIssSnoopAuthStatusType descriprion).
1.3.6.1.4.1.35265.1.139.8.1.4	NodeeltMesIssSnoopConfigs
1.3.6.1.4.1.35265.1.139.8.1.4.1	ScalareltMesIssSnoopAuthEnable	read-write	current	Enable IGMP snooping authentication.
1.3.6.1.4.1.35265.1.139.8.1.4.2	ScalareltMesIssSnoopAuthCacheTimeout	read-write	current	Authentication cache entry timeout in seconds.

Type Definitions

Name	Syntax	Status	Description
EltMesIssSnoopAuthStatusType	INTEGER { waiting(1), forward(2), discard(3), timeout(4) }	current	Status of IGMP snooping authentication. waiting - wait for response from server, forward - authentication is successfull, discard - access denied by server, timeout - timeout of response from server.
EltMesIssSnoopAuthType	INTEGER { none(1), radius(2) }	current	IGMP snooping authentication type. none - no authentication, radius - authentication using RADIUS server.

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

ELTEX-MES-ISS-SNOOP-MIB

Bulk Translate

Search Vendor MIBs

Search Vendor Traps