I haven't switched to Netatalk 2, but have been using Netatalk 1.x for years. I did something like this where I just wanted to count all the Appletalk devices on the network. I used the binary nbplkup from the Netatalk distribution to do it. Example from man page:

  example% nbplkup :LaserWriter
                             Petoskey:LaserWriter        7942.129:218
                           Gloucester:LaserWriter        8200.188:186
                               Rahway:LaserWriter        7942.2:138
                           517 Center:LaserWriter        7942.2:132
                                ionia:LaserWriter        7942.2:136
                   Evil DEC from Hell:LaserWriter        7942.2:130
                            Hamtramck:LaserWriter        7942.2:134
                       Iron Mountain :LaserWriter        7942.128:250
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