>> MIB - Management Information Base
>> Table: ipDnsDynamicTable - (.1.3.6.1.4.1.272.4.5.20.19.1)
Description: Contains dynamic (cached) DNS-entries. Two different entry-types are possible. 1) 'Positive' entries store names and addresses for building related A/AAAA/PTR-resource-records. 2) 'Negative' entries store info that records of specified type (A or AAAA) cannot be retrieved for specified name. This info can be learned either 'explicitly' (by related error-reply) or 'implicitly' (by timeout of related forwarded query/question). At present, if negative entries exist for BOTH record-types for same name then whole NAME is considered 'invalid'.
ipDnsDynamicTable
OID | Name | Type | Access
.1 | Index | INTEGER | R
.2 | Name | DisplayString | R
.3 | IpaddrType | ENUM | R
.4 | Ipaddr | InetAddress | R
.5 | Response | ENUM | D
.6 | IfIndex | INTEGER | R
.7 | NsAddrType | ENUM | R
.8 | NsAddr | InetAddress | R
.9 | Authoritative | ENUM | R
.10 | Recursion | ENUM | R
.11 | Authenticated | ENUM | R
.12 | Ttl | INTEGER | R
.13 | Hash | INTEGER | R
Index
Unique index for unambiguous SNMP-addressing.
Name
Full DNS-name (with trailing dot). Length: 0 to 255
IpaddrType
For positive entries, stores IP-version (ipv4 or ipv6) for ipDnsDynamicEntIpaddr. For negative entries, specifies type (dns or ipv4/ipv6) of negative info. dns means that whole name is invalid. ipv4/ipv6 means that name is valid but no A/AAAA-records exist for it. Remark: Values 'unknown', 'ipv4z', 'ipv6z' are inherited from InetAddressType but are NOT allowed here. Enumerations: unknown (0) ipv4 (1) ipv6 (2) ipv4z (3) ipv6z (4) dns (16)
Ipaddr
IPv4/IPv6-address to be used for building A/AAAA/PTR-records. Relevant only for positive entries. Length: 0 to 255
Response
Field serves multiple purposes. 'delete' means that entry shall be removed. Any other value specifies entry-type. 'positive' means that entry stores name and address for building related A/AAAA/PTR-resource-records. 'negative-imp'/'negative-exp' means that no resource-records can be retrieved for specified name and type (see 'IpaddrType' field). This info may have been learned from explicit ('exp') negative reply or implicitly ('imp') from timeout of earlier forwarded query/question. Enumerations: negative-imp (1) negative-exp (2) positive (3) delete (4)
IfIndex
Index of forward-interface where cached info was learned.
NsAddrType
IP-version (ipv4 or ipv6) for ipDnsDynamicEntNsAddr. Remark: Values 'unknown', 'ipv4z', 'ipv6z', 'dns' are inherited from InetAddressType but are NOT allowed here. Enumerations: unknown (0) ipv4 (1) ipv6 (2) ipv4z (3) ipv6z (4) dns (16)
NsAddr
IPv4/IPv6-address of forward-server that was queried for cached info. Length: 0 to 255
Authoritative
Authoritative-answer-status (AA-flag) taken from cached response ('no' in timeout-case). Enumerations: yes (1) no (2)
Recursion
Recursion-availability-status (RA-flag) taken from cached response ('not-available' in timeout-case). Enumerations: available (1) not-available (2)
Authenticated
Authenticated-data-status (AD-flag) taken from cached response ('no' in timeout-case). Enumerations: yes (1) no (2)
Ttl
Remaining time-to-live of this entry in seconds.
Hash
Automatically generated: Hash-value of name-field.

MIB Reference to Software Version 10.2.12 generated on 2023/08/29. Provided by webmaster@bintec-elmeg.com Copyright ©2023 by bintec elmeg GmbH