You could always eval the login: 
use Net::Telnet::Cisco;

for ($i = 1; $i <= 254; $i++){
  
  $device = "172.16.$i.251";

  my $session = Net::Telnet::Cisco->new(Host => "$device",
            Input_log => "perllogrouter/router$i.log",);

   eval { $session->login('admin', 'admin') or die "Could not connect 
+to $device" };
   if ( $@ ){ # log here #; next }

   #some command
   $session->cmd ("show running-config ");
   $session->close;

[download]
~~David~~

In reply to Re: Cisco Telnet by ~~David~~
in thread Cisco Telnet by mvip

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