Product and Software: This article applies to all Aruba controllers and ArubaOS versions.
The Engine ID on the controller is automatically generated. To find the Engine ID used by the controller, look at a packet capture of a SNMPv3 trap generated by the controller. For example, on the packet capture below using Ethereal, note that the Authoritative Engine ID is 000039E7000000A10A0A0A0A
No. Time Source Destination Protocol Info
28 27.997115 10.10.10.10 10.10.10.15 SNMP Encrypted PDU
Frame 28 (332 bytes on wire, 332 bytes captured)
Ethernet II, Src: 00:0b:86:60:0d:da, Dst: 00:0a:e4:36:25:f5
Internet Protocol, Src Addr: 10.10.10.10 (10.10.10.10), Dst Addr: 10.10.10.15 (10.10.10.15)
User Datagram Protocol, Src Port: 32797 (32797), Dst Port: snmptrap (162)
Simple Network Management Protocol
Version: 3 (3)
Message Global Header
Message Security Parameters
Message Security Parameters Length: 55
Authoritative Engine ID: 000039E7000000A10A0A0A0A
Engine Boots: 59
Engine Time: 1923
User Name: userv3
Authentication Parameter: 21079523A9608F86C31D7BF3
Privacy Parameter: 0000003B30409739
Encrypted PDU (211 bytes)
The Engine ID used by the controller is based on the Aruba private enterprise number plus the IP address, with the value converted to hex.
000039E7000000A10A0A0A0A
39E7 is the Aruba private enterprise number (14823) in hex.
0A0A0A0A is the IP address of the controller (10.10.10.10) in hex.