[Bro] about signature match

[fu yiyang]

hi, all:
    I'm a new comer. I have read the documents about bro. I want to performs
off-line analysis using -r ,but i don't  know how to activate signature
engine.
    Could sonmebody tell me how to use signature engine in bro?
    Thanks very much!

    eyoung
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.ICSI.Berkeley.EDU/pipermail/bro/attachments/20080917/9740f5df/attachment.html