Hi, I'm using the SNMP module to retrieve interfaces mac addresses (oid 1.3.6.1.2.1.2.2.1.6). Snmpwalk works fine snmpwalk -v 1 -r 1 -t 2 -c public 127.0.0.1 .1.3.6.1.2.1.2.2.1.6.1 IF-MIB::ifPhysAddress.1 = STRING: 0:10:83:fd:dd:67 while using the ruby module ifTable_columns = [ "1.3.6.1.2.1.2.2.1.6", ] SNMP::Manager.open(:Host => "#{host}", :Version => :SNMPv1, :Community => 'public') do |manager| manager.walk(ifTable_columns) do |row| row.each { |vb| puts "#{vb.name.to_s} #{vb.value.to_s} #{vb.value.asn1_type}" } end end the mac address is visualized as shown 1.3.6.1.2.1.2.2.1.6.1 ¥Æ¥¹¥ÆÙÈ OCTET STRING instead of 0:10:83:fd:dd:67. How can I fix it? Thank you very mych, JC -- Posted via http://www.ruby-forum.com/.