wanproxy problems

[llhwjj2011]

hi
    now I begin to learn wanproxy project.  I download that the wanproxy version is 0.7.2 release.  but when I deplay to the project , have some problems.
    At first , I want to know that the project's working principle.  I look up the  source code .found the software get througth pcap capture packets. then after capture packets ,how is the wanproxy working ?
    I hope you can help me and give me some suggests.
    Regards
llhwjj2011
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