From: Joao Pompei <joao.pompei@...>
Date: 2010-05-04T22:06:32+09:00
Subject: Re: Help decoding UDPSocket trap data

jackster the jackle wrote:
> I was able to get my version to work but I have to look back now and 
> find the exact code.
> 
> The first thing I notice is that you are listening on port 1062 and it 
> should be 162, please try and change that and see if that helps.
> 
> jackster

Hello!

We got the things going here. Thanks all.

Jackster, I can configure witch port I want to use (default is 162, but 
in linux only the root user has access to that port).

The problem was the ip address. I believe that linux by default doesn't 
address 'localhost' to eth2 (localhost binds with some line in some 
/etc/net/config.blabla) and because of that I wasn't receiving any 
messages.

Here is the code that I am using now. Note the exact ip address on it:

m = SNMP::TrapListener.new(:Host => '192.168.31.5', :Port => 2062) do 
|manager|
      manager.on_trap_default do |trap|
          trap.each_varbind { |v|
         puts 'OID: ' + v.name.to_s + ' Value: ' + v.value.to_s
    }
      end
  end
m.join

This code give me this answer:

OID: 1.3.6.1.6.3.1.1.4.1.0 Value: 1.3.6.1.4.1.xxxx.6.1.2.2.13.7
OID: 1.3.6.1.2.1.1.5 Value: Equip_name
OID: 1.3.6.1.4.1.xxxx.6.1.2.2.3.3.1.2 Value: 2
OID: 1.3.6.1.4.1.xxxx.6.1.2.2.3.3.1.3 Value: 2
OID: 1.3.6.1.2.1.1.3.0 Value: 5 days, 01:17:22.37
OID: 1.3.6.1.6.3.1.1.4.1.0 Value: 1.3.6.1.4.1.xxxx.6.1.2.2.13.15

Where xxxx is the company register on IANA.

Thanks guys. Ruby forums are a very good source of solutions.

Joao Pompei
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