in reply to Re^2: Cisco SNMP CDP Poll
in thread Cisco SNMP CDP Poll

In my case I have found that some devices return strange output, it is in case no mgmt IP is available in sh cdp nei detail (CSS11501), older IOS or different platform.
DB<69> p $_[0] DB<70> x $_[0] 0 "\c@\c@\c@\c@"
My dirty hack for that was just check for valid hex-like input
#if (substr($hex_ip,0,1) eq ""){ if ($hex_ip !~ m/0x.*/){ $ip = ""; }