From: Brian Candler <B.Candler@...>
Date: 2007-06-28T00:22:28+09:00
Subject: Re: snmp error

> the mac address is visualized as shown
> 
> 1.3.6.1.2.1.2.2.1.6.1 ����g OCTET STRING
> 
> instead of 0:10:83:fd:dd:67.
> 
> How can I fix it?

The trouble is that you are printing the raw 6 byte string (note that hex 67
is the ASCII code for a lower-case 'g')

So you just need to convert it into 12 hex digits:

    a = "\x00\x10\x83\xfd\xdd\x67"
    puts a.unpack("H*").first

Here's one way to add the colons:

    a = "\x00\x10\x83\xfd\xdd\x67"
    puts a.unpack("H2H2H2H2H2H2").join(":")