HW Address and arp

I was checking nettl output for a unstable telnet to my server. this is part of output:

###
***********************************STREAMS/UX*******************************@#%
Timestamp : Sun Jun 22 EETDST 2008 22:14:47.492899
Process ID : [ICS] Subsystem : STREAMS
User ID ( UID ) : -1 Log Class : ERROR
Device ID : 0 Path ID : 0
Connection ID : 0 Log Instance : 0
Location : 00123

534 22:14:47 19357249 1 T.. 0 0 IP: Hardware address '00:b0:d0:8d:55:34' trying
to be our address 192.168.104.101!
\#\#\#

I want to find HW Address and arp does not work. Is there any other method to examine this situation. 
By the way , how to use Reverse arp ??
Thx

See: Interface Details for HP-UX Box

Thank you.
is there any Reverse arp like command in HP Unix ?

Reverse arp has been dead for decades. I don't know is hp has any support for it.

You can google for Inarp. There may still be something out there. Somewhere. Inverse ARP has largely been "moved" under arp AFAIK.

Reverse ARP is now replaced by DHCP.