In what way is this code not working for you? Be as detailed as possible. Use print as a debug tool to show the value of variables at different points in your code. See also: Basic debugging checklist. 
use Net::Ping6;

...

    if($p->ping6($&))

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If I drop the '6', and use Net::Ping, then change $` to $&, it works for me: the ping_output file shows the correct 'responding' message for the list of IP addresses I gave it.

In reply to Re^4: PERL SCRIPT FOR IPv6 LOOK-UP by toolic
in thread PERL SCRIPT FOR IPv6 LOOK-UP by sam127

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