hello dear monks!

I have two hashes in the following format:

my %hash = (
            '1.1.1.1'  => 'nfs,1',
            '4.4.4.4'  => 'cifs,0',
            '10.0.4.2' => 'afp,1',
            '3.3.3.3'  => 'nfs,0',
            '5.5.5.5'  => 'afp,0',
           );
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As you can see, the key is an IP address and the value is a file protocol name and an index.
the first hash is old configuration, and the second hash will be new configuration. I need to restart the protocol(s) that one or more of their IP addresses were changed (including an index change), therefore I need some kind of diff function that will return me the changed protocols, for example afp and I'll know to restart it.
Anyone with an idea?

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