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How to get reason for ping failure using perls Net::Ping->new("icmp");?


 
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Top Forums Shell Programming and Scripting How to get reason for ping failure using perls Net::Ping->new("icmp");?
# 1  
Old 06-13-2013
How to get reason for ping failure using perls Net::Ping->new("icmp");?

Hi

I am using perl to ping a list of nodes - with script below :

Code:
$p = Net::Ping->new("icmp");
        if ($p->ping($host,1)){
                print "$host is alive.\n";
        }
        else {
                print "$host is unreacheable.\n";
        }
      $p->close();

This works fine however I want the script to tell me the reason why ping fails for the hosts that are not pingable.
Is there any way to print reason why $host is unreacheable using Net::Ping ?
If not is there a better way to ping list of hosts using Perl ?

Thanks
Bernard

Last edited by radoulov; 06-13-2013 at 11:55 AM..
# 2  
Old 06-13-2013
How is a host supposed to tell you why it is not answering?
# 3  
Old 06-14-2013
I have tried same script using system ping for list of hosts I want to ping - for some of the hosts I am getting unknown hosts for others I am getting Host unreacheable. Do I need to do something like nslookup to check if host is in dns on the failed nodes - I was hoping I could do all with ping.
# 4  
Old 06-14-2013
There are two thing you can test when ping some
If DNS does not resolve:
ping vvv.google.no gives ping: unknown host vvv.google.no
If DNS is ok and it does not reply you get
4 packets transmitted, 0 received, 100% packet loss, time 3024ms
# 5  
Old 06-14-2013
What I am looking to find out is if it is possible to check if result of ping failure using Net::Ping without parsing ping output. I want to know if host was unknown or if host was unreachable.

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