BIANCA-BRICK-DNS-MIB

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Category: IP and Core Protocols, Vendor: bintec

Description: Manages DNS proxy and resolver configuration and query statistics on bintec BIANCA/BRICK access routers.

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What Is BIANCA-BRICK-DNS-MIB?

BIANCA-BRICK-DNS-MIB is a proprietary bintec elmeg (BIANCA/BRICK) MIB for the DNS proxy/resolver functionality built into BIANCA/BRICK access routers. It is expected to expose configuration objects for DNS proxy/forwarding behavior along with query and cache statistics counters. Its monitoring value is software service status: query volume, cache hit/miss behavior, and forwarder reachability help confirm the router's built-in DNS service is functioning correctly for LAN clients. It is a self-contained vendor MIB with no strong dependency on IETF standard MIBs beyond the generic SNMP framework. It is used on bintec elmeg BIANCA/BRICK small/branch-office access routers that provide integrated DNS proxy service alongside routing and VPN functions. Network engineers evaluating or troubleshooting this functionality can download the BIANCA-BRICK-DNS-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in BIANCA-BRICK-DNS-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

bintec elmeg BIANCA/BRICK access router

Monitoring Examples

No sample objects were extracted for this module in the available data, so specific table/object names cannot be cited. In general this MIB would be polled for DNS proxy query counts and forwarder status, where a spike in failed queries or a forwarder marked unreachable would reveal a DNS resolution problem for clients behind the router.

What Can Be Monitored

DNS proxy query volume
DNS cache hit/miss statistics
DNS forwarder reachability
DNS proxy service enable state

Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
IpAddress

From SNMPv2-TC

DisplayString

OIDs

OID symbolic	OID numeric	Type	Access	Description
org	1.3
dod	1.3.6
internet	1.3.6.1
private	1.3.6.1.4
enterprises	1.3.6.1.4.1
bintec	1.3.6.1.4.1.272
bibo	1.3.6.1.4.1.272.4
biboip	1.3.6.1.4.1.272.4.5
ipDns	1.3.6.1.4.1.272.4.5.20
INT ipDnsDhcpAssign	1.3.6.1.4.1.272.4.5.20.1	INTEGER	read-write	This variable determines the assignment policy, when a BinTec router acts as a DHCP-server and is asked for nameserver addresses. Possible values: none (1), -- Don�t send any nameserver -addresses self (2), -- Send own address as the only nameserver global(3) -- Send ns-addresses from global admin table.
INT ipDnsIpcpAssign	1.3.6.1.4.1.272.4.5.20.2	INTEGER	read-write	This variable determines the assignment policy, when a BinTec router is asked for nameservers during IPCP negotiation. Possible values: none (1), -- Don�t send any nameserver addresses self (2), -- Send own address as the only nameserver global(3) -- Send ns-addresses from global admin table.
INT ipDnsUsePosCache	1.3.6.1.4.1.272.4.5.20.3	INTEGER	read-write	Decides, whether positive caching is performed or not.
INT ipDnsUseNegCache	1.3.6.1.4.1.272.4.5.20.4	INTEGER	read-write	Decides, whether negative caching is performed or not.
INT ipDnsMaxCacheSize	1.3.6.1.4.1.272.4.5.20.5	INTEGER	read-write	Defines the maximum number of entries in the DNS table. If this limit is reached, the dynamic entries are discarded according to the lru order, if a new entry is to be added.
INT ipDnsPositiveTtl	1.3.6.1.4.1.272.4.5.20.6	INTEGER	read-write	The time to live used for a positive cache entry, if the responding nameserver does not tell it explicitly (i.e. TTL=0).
INT ipDnsNegativeTtl	1.3.6.1.4.1.272.4.5.20.7	INTEGER	read-write	The time to live used for negative cache entries.
INT ipDnsDefaultIfIndex	1.3.6.1.4.1.272.4.5.20.8	INTEGER	read-write	The index of the interface (from the pppTable) whose nameserver should be requested by default, if nothing else works. -1 defines no default interface for DNS forwarding.
INT ipDnsNumReceives	1.3.6.1.4.1.272.4.5.20.9	INTEGER	read-only	The number of packets received.
INT ipDnsNumInvalids	1.3.6.1.4.1.272.4.5.20.10	INTEGER	read-only	The number of invalid packets received.
INT ipDnsNumRequests	1.3.6.1.4.1.272.4.5.20.11	INTEGER	read-only	The number of questions received. If a packet is received, this variable is incremented by the number of question records contained in the packet.
INT ipDnsNumCacheHits	1.3.6.1.4.1.272.4.5.20.12	INTEGER	read-only	The number of times a question could be answered immediately due to a cache entry.
INT ipDnsNumForwards	1.3.6.1.4.1.272.4.5.20.13	INTEGER	read-only	The number of questions forwarded to other name servers.
INT ipDnsNumOks	1.3.6.1.4.1.272.4.5.20.14	INTEGER	read-only	The number of requests answered successfully.
INT ipDnsNumFails	1.3.6.1.4.1.272.4.5.20.15	INTEGER	read-only	The number of requests answered with a SERVFAIL packet.
ipDnsTable	1.3.6.1.4.1.272.4.5.20.16		not-accessible	Contains both static and temporary entries of DNS records
ipDnsEntry	1.3.6.1.4.1.272.4.5.20.16.1		not-accessible	Contains either DNS routing-information or DNS-caching- information, depending on the values of the ip-address and interface-index fields
STR ipDnsEntName	1.3.6.1.4.1.272.4.5.20.16.1.1	DisplayString	read-write	DNS-name
IP ipDnsEntIpaddr	1.3.6.1.4.1.272.4.5.20.16.1.2	IpAddress	read-write	The ip-address, 0.0.0.0 for a not resolved or wildcard entry
INT ipDnsEntIfIndex	1.3.6.1.4.1.272.4.5.20.16.1.3	INTEGER	read-write	The index of the interface (from the pppTable) whose nameserver should be requested for this entry. If this field contains a negative value, the static nameservers are queried.
INT ipDnsEntResponse	1.3.6.1.4.1.272.4.5.20.16.1.4	INTEGER	read-write	Response for queries matching this entry
INT ipDnsEntStatic	1.3.6.1.4.1.272.4.5.20.16.1.5	INTEGER	read-write	Determines, whether the entry is static (yes), dynamic(no) (ttl is decremented) or marked for discard (delete)
INT ipDnsEntTtl	1.3.6.1.4.1.272.4.5.20.16.1.6	INTEGER	read-write	The remaining time-to-live of the entry in seconds. This Field is only used, if the type of the entry is dynamic.
INT ipDnsEntLru	1.3.6.1.4.1.272.4.5.20.16.1.7	INTEGER	read-write	This Field is only used, if the type of the entry is dynamic. It is an internal value determining the order, in whch dynamic entries are discarded in case of a full dns table (last-recently-used). Internally, it represents the number of seconds elapsed since 01.01.1970.
INT ipDnsEntHash	1.3.6.1.4.1.272.4.5.20.16.1.8	INTEGER	read-only	The hash value for the name field. This value is re-compted at boot time and may change due to changing hash algorithms.
INT ipDnsEntRefCount	1.3.6.1.4.1.272.4.5.20.16.1.9	INTEGER	read-write	Counts the number of times the entry has been referenced. For immediate entries it resembles the number of times a question could be answered due to this entry, for entries pointing to another nameserver, the number of times, the associated interface has been tried to pull up.
INT ipDnsDynamicGlobals	1.3.6.1.4.1.272.4.5.20.17	INTEGER	read-write	This object determines, if the global name servers in table admin are being overwritten each time a name server has been negotiated successfully via IPCP or not Possible values: yes (1), -- Overwrite global name servers each time a -- name server has been negotiated successfully -- via IPCP no (2) -- Never overwrite global name servers.

RFC description

Manages DNS configuration on BinTec Bianca routers, including DHCP nameserver assignment policies and DNS caching settings.

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Download BIANCA-BRICK-DNS-MIB

What Is BIANCA-BRICK-DNS-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description