netdisco-sshcollector - DEPRECATED!


The functionality of this standalone script has been incorporated into Netdisco core.

Please read the deprecation notice if you are using netdisco-sshcollector:


 # install dependencies:
 ~/bin/localenv cpanm --notest Net::OpenSSH Expect

 # run manually, or add to cron:
 ~/bin/netdisco-sshcollector [-DQO] [-w <max_workers>] 

 # limit run to a single device defined in the config
 ~/bin/netdisco-sshcollector [-DQO] [-w <max_workers>] -d <device> 


Collects ARP data for Netdisco from devices without full SNMP support. Currently, ARP tables can be retrieved from the following device classes:

The collected arp entries are then directly stored in the netdisco database.


The following should go into your Netdisco configuration file, ~/environments/deployment.yml.


Data is collected from the machines specified in this setting. The format is a list of dictionaries. The keys ip, user, password, and platform are required. Optionally the hostname key can be used instead of the ip. For example:

   - ip: ''
     user: oliver
     password: letmein
     platform: IOS
   - hostname: ''
     user: oliver
     platform: IOS

Platform is the final part of the classname to be instantiated to query the host, e.g. platform ACE will be queried using App::Netdisco::SSHCollector::Platform::ACE.

If the password is blank, public key authentication will be attempted with the default key for the netdisco user. Password protected keys are currently not supported.


Additional device classes can be easily integrated just by adding and additonal class to the App::Netdisco::SSHCollector::Platform namespace. This class must implement an arpnip($hostname, $ssh) method which returns an array of hashrefs in the format

 @result = ({ ip => IPADDR, mac => MACADDR }, ...) 

The parameter $ssh is an active Net::OpenSSH connection to the host. Depending on the target system, it can be queried using simple methods like

 my @data = $ssh->capture("show whatever")

or automated via Expect - this is mostly useful for non-Linux appliances which don't support command execution via ssh:

 my ($pty, $pid) = $ssh->open2pty;
 unless ($pty) {
   debug "unable to run remote command [$hostlabel] " . $ssh->error;
   return ();
 my $expect = Expect->init($pty);
 my $prompt = qr/#/;
 my ($pos, $error, $match, $before, $after) = $expect->expect(10, -re, $prompt);
 $expect->send("terminal length 0\n");
 # etc...

The returned IP and MAC addresses should be in a format that the respective inetaddr and macaddr datatypes in PostgreSQL can handle.



Netdisco debug log level.


DBIx::Class trace enabled.


Net::OpenSSH trace enabled.


Set maximum parallel workers for MCE::Loop. The default is auto.

-d device

Only run for a single device. Takes an IP or hostname, must exactly match the value in the config file.