OID reference
1.3.6.1.4.1.81.31.1.2.1.18
This object is an 'alias' name for the lower-layer interface used to borrow the IP unnumbered. In case the IP interface is not unnumbered then this value is null - not exists interface.
Identification
{1 3 6 1 4 1 81 31 1 2 1 18}
At least one MIB declaration places this object in a table row. A value belongs to a row instance; its suffix depends on the row's INDEX or AUGMENTS definition.
In CROUTE-MIB, the row index ipInterfaceAddr is declared as IpAddress. The IPv4 address is encoded as four numeric subidentifiers, one for each address octet. For example, a row with address 192.0.2.10 has the instance .1.3.6.1.4.1.81.31.1.2.1.18.192.0.2.10. Use an index value actually present on the device and permitted by its MIB. Other definitions can differ.
snmpwalk [connection options] DEVICE .1.3.6.1.4.1.81.31.1.2.1.18
Replace the placeholders with your connection and authentication options. Available permissions and device support can differ from the MIB.
Properties come from available MIB definitions. Actual device support and access can differ. See source records below for original files and qualifications.
The displayed source records contain one distinct definition. Compare its source records.
ipInterfaceUnnumberedLowerIfAlias OBJECT-TYPE
SYNTAX DisplayString (SIZE (0..32))
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This object is an 'alias' name for
the lower-layer interface used to borrow the IP unnumbered.
In case the IP interface is not unnumbered then this value is null - not exists interface."
::= { ipInterfaceEntry 18 }
Meaning
Identical descriptions are grouped. Different wording and device-specific notes are retained.
This object is an 'alias' name for the lower-layer interface used to borrow the IP unnumbered. In case the IP interface is not unnumbered then this value is null - not exists interface.
Multiple manufacturers; see the original MIB MIB copies (LibreNMS/Observium Community)
Evidence
Matching descriptions are grouped; open a group to compare definitions and supporting files.
Status in source: mandatory.
Names: ipInterfaceUnnumberedLowerIfAlias
{
"smi_kind": "OBJECT-TYPE",
"definition": [
"ipInterfaceUnnumberedLowerIfAlias",
"OBJECT-TYPE",
"SYNTAX",
"DisplayString",
"(",
"SIZE",
"(",
"0",
".",
".",
"32",
")",
")",
"ACCESS",
"read-write",
"STATUS",
"mandatory",
"DESCRIPTION",
"\"This object is an 'alias' name for the lower-layer interface used to borrow the IP unnumbered. In case the IP interface is not unnumbered then this value is null - not exists interface.\"",
"::=",
"{",
"ipInterfaceEntry",
"18",
"}"
],
"syntax_tree": [
[
"SimpleSyntax",
"DisplayString",
[
"octetStringSubType",
[
[
0,
32
]
]
]
],
null,
[
"MaxAccessPart",
"read-write"
],
[
"Status",
"mandatory"
],
[
"DESCRIPTION",
"This object is an 'alias' name for the lower-layer interface used to borrow the IP unnumbered. In case the IP interface is not unnumbered then this value is null - not exists interface."
],
null,
null,
null,
null
]
}Vendor MIB copy from the Observium Community archive.
Module: CROUTE-MIB
See published definition above
{'GEN-MIB': ['lannet'], 'OSPF-MIB': ['AreaID', 'Status', 'DesignatedRouterPriority', 'UpToMaxAge', 'HelloRange', 'PositiveInteger', 'TOSType', 'Metric'], 'RFC-1212': ['OBJECT-TYPE'], 'RMON-MIB': ['OwnerString'], 'RIPv2-MIB': ['RouteTag'], 'SNMPv2-TC': ['TruthValue'], 'SNMPv2-SMI': ['Integer32', 'Counter32', 'Unsigned32'], 'RFC1155-SMI': ['IpAddress'], 'RFC1213-MIB': ['DisplayString', 'PhysAddress']}Related source files and packages:
Registration
| OID | Name | Direct children | Descendants | Description |
|---|---|---|---|---|
| 1.3.6.1.4.1.81.31.1.2.1.1 | ipInterfaceAddr | 0 | 0 | The IP address to which this entry's addressing information pertains. |
| 1.3.6.1.4.1.81.31.1.2.1.2 | ipInterfaceNetMask | 0 | 0 | The subnet mask associated with the IP address of this entry. The value of the mask is an IP address with all the network bits se… |
| 1.3.6.1.4.1.81.31.1.2.1.3 | ipInterfaceLowerIfAlias | 0 | 0 | This object is an 'alias' name for the lower-layer interface on top of which this IP interface is defined. The alias is specifie… |
| 1.3.6.1.4.1.81.31.1.2.1.4 | ipInterfaceType | 0 | 0 | The logical type of the interface. The default depends on the physical type. For example Ethernet and Token-Ring LANs are of typ… |
| 1.3.6.1.4.1.81.31.1.2.1.5 | ipInterfaceForwardIpBroadcast | 0 | 0 | Whether the router forwards IP directed broadcasts that are to be transmitted as link-layer broadcast to an attached net or subn… |
| 1.3.6.1.4.1.81.31.1.2.1.6 | ipInterfaceBroadcastAddr | 0 | 0 | The value of the least-significant bit in the IP broadcast address used for sending datagrams on the (logical) interface associa… |
| 1.3.6.1.4.1.81.31.1.2.1.7 | ipInterfaceProxyArp | 0 | 0 | When proxy ARP is enabled, the router responds to ARP requests received on one link-layer interface for an IP-address that is rea… |
| 1.3.6.1.4.1.81.31.1.2.1.8 | ipInterfaceStatus | 0 | 0 | For adding and deleting IP interfaces. Deleting this row means deleting the corresponding entry in IpAddrTable (MIB II). Deletin… |
| 1.3.6.1.4.1.81.31.1.2.1.9 | ipInterfaceMainRouterAddr | 0 | 0 | The IP address of the main router backed up on this interface. |
| 1.3.6.1.4.1.81.31.1.2.1.10 | ipInterfaceARPServerStatus | 0 | 0 | Whenever to activate the ARP Server mechanism on this interface. enable - set by the user, means activate the ARP Server mechani… |
| 1.3.6.1.4.1.81.31.1.2.1.11 | ipInterfaceName | 0 | 0 | The name of this interface for compatibility with cli. |
| 1.3.6.1.4.1.81.31.1.2.1.12 | ipInterfaceNetbiosRebroadcast | 0 | 0 | inbound - netbios received from the interface are rebarodcasted, outbound - netbios are rebraodcasted to this interface, both - n… |
| 1.3.6.1.4.1.81.31.1.2.1.13 | ipInterfaceIcmpRedirects | 0 | 0 | enable - enable the sending of redirect messages if the router is forced to re-send a packet through the same interface on which… |
| 1.3.6.1.4.1.81.31.1.2.1.14 | ipInterfaceOperStatus | 0 | 0 | |
| 1.3.6.1.4.1.81.31.1.2.1.15 | ipInterfaceDhcpRelay | 0 | 0 | |
| 1.3.6.1.4.1.81.31.1.2.1.16 | ipInterfaceAddrType | 0 | 0 | |
| 1.3.6.1.4.1.81.31.1.2.1.17 | ipInterfaceAddrUnnumbered | 0 | 0 | |
| 1.3.6.1.4.1.81.31.1.2.1.19 | ipInterfaceReasmMaxSize | 0 | 0 |