Note, that getsockopt returns packed value. Try 
print "ttl => " . unpack("L", $ttl) . "\n";

[download]
instead. Also, when you're setting socket option you should pack its value.

In reply to Re: Values of Multicast Socket Options on Solaris 10 are not returned by getsockopt. by zwon
in thread Values of Multicast Socket Options on Solaris 10 are not returned by getsockopt. by Anonymous Monk

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