Truncated Reply Retry

16:13:35.135356
    brandenburg.cs.mu.OZ.AU.61907 >
    ns.apnic.net.domain:
       S 2841815525:2841815525(0) win 16384

16:13:40.800530
    brandenburg.cs.mu.OZ.AU.61907 >
    ns.apnic.net.domain:
       S 2841815525:2841815525(0) win 16384

16:13:41.787120
    ns.apnic.net.domain >
    brandenburg.cs.mu.OZ.AU.61907:
       S 2390326059:2390326059(0) ack 2841815526
       win 17376 (DF)

16:13:41.787172
    brandenburg.cs.mu.OZ.AU.61907 >
    ns.apnic.net.domain:
       . ack 1 win 17520

16:13:41.787238
    brandenburg.cs.mu.OZ.AU.61907 >
    ns.apnic.net.domain:
       P 1:37(36) ack 1 win 17520