Crawler headers could not get the data

Hi All,

I am creating one crawler code for p2p network using gnutella 
protocol . I had found the headers for the crawler as 


GNUTELLA CONNECT/0.6 \r\n
ULTRAPEER : false\r\n
USER_AGENT :  XXXX (crawl)\r\n
QUERY_ROUTING : 0.1\r\n
CRAWLER : 0.1\r\n
\r\n


But I do not get the required information of the Peers and leafs of 
the ultrapeer.

If I modify the connection Headers as of the Normal P2P client then 
I alwayes get connected.

Do any one knows the reason. Please Help me,

Thanks,
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