CTRON-APPN-MIB :: nwAppnExtIfAddress

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCTRON-APPN-MIBnwAppnExtIfAddress

nwAppnExtIfAddress

Module: CTRON-APPN-MIB

OID (symbolic): CTRON-APPN-MIB::nwAppnExtIfAddress

OID (numeric): 1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.2.1.2.1.28

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-only

Description: Specifies the physical address of this port depending on the media type. For token ring or ethernet ports, the information is the 6 byte MAC address which starts in byte 1 and ends in byte 6. For token ring ports the MAC address must be specified in non- canonical format. For ethernet ports the MAC address must be specified in canonical format. For frame relay ports, there is no associated address, i.e., it will be a zero length octet string.

What is nwAppnExtIfAddress?

This read-only octet string (1-32 bytes) gives the physical address of this port, whose format depends on media type - a 6-byte MAC address in non-canonical form for token ring, or canonical form for ethernet. An admin uses this to verify the port's actual hardware address matches what's documented, which matters when diagnosing address-based connectivity issues. On an Ethernet APPN port, an admin would expect this to read as a standard 6-byte MAC address in canonical form.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.2.1.2.1.28
snmpwalk -v2c -c public <target> CTRON-APPN-MIB::nwAppnExtIfAddress

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.2.1.2.1.28.1
snmpget -v2c -c public <target> CTRON-APPN-MIB::nwAppnExtIfAddress.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> nwAppnExtIfAddress.1

Start monitoring Cabletron/Enterasys router (IBM SNA/APPN) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CTRON-APPN-MIB::nwAppnExtIfAddress OID value, configure state conditions and alerts, and monitor any Cabletron/Enterasys router (IBM SNA/APPN) from a single console.

OID Breakdown

Upper-level ancestors (12 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.52cabletronCabletron-MIB
1.3.6.1.4.1.52.4mibsCTRON-AP3000-MIB
1.3.6.1.4.1.52.4.2ctronExpCTRON-MIB-NAMES
1.3.6.1.4.1.52.4.2.2ctronRouterExpROUTER-OIDS
1.3.6.1.4.1.52.4.2.2.2nwRouterROUTER-OIDS
1.3.6.1.4.1.52.4.2.2.2.3nwRtrProtoSuitesROUTER-OIDS
Numeric OIDNameModule
1.3.6.1.4.1.52.4.2.2.2.3.5nwAppnRouterCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2nwAppnComponentsCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2.2nwAppnForwardingCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.2nwAppnFwdInterfacesCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.2.1nwAppnFwdIfConfigCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.2.1.2nwAppnExtensionTableCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.2.1.2.1nwAppnExtEntryCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.2.1.2.1.28nwAppnExtIfAddressCTRON-APPN-MIB