---
oid: "1.3.6.1.4.1.74.2.14.1.1"
asn1-notation: "{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 74 att-mgmt(2) att-rh1mgt(14) rh1BasicCtrlCapability(1) rh1BasicCtrlRackMAC(1)}"
description: "rh1BasicCtrlRackMAC OBJECT-TYPE"
classification: "MIB object for network management"
last-modified: "2018-05-23"
---

## OID : `1.3.6.1.4.1.74.2.14.1.1`

```asn1
{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 74 att-mgmt(2) att-rh1mgt(14) rh1BasicCtrlCapability(1) rh1BasicCtrlRackMAC(1)}
```

### Description

```asn1
rh1BasicCtrlRackMAC OBJECT-TYPE
SYNTAX OCTET STRING
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The rack's base MAC address. By definintion it may be
inferred that the next 3 consecutive MAC addresses are also
assigned to this rack. This object is included in all traps
to allow the manager to ascertain the hub's MAC address
(unique identifier). This is required for UDP/IP
communications across an internet since the source MAC
address is not preserved end-to-end. This is also the MAC
address used to send hub learn packets on the first segment."
```

**Classification**: MIB object for network management

### Child OIDs

No child OID

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