record ack before fin packet
record ack before fin packet

sshling/tcpcopy,eliteYang/tcpcopy,ycaihua/tcpcopy,caosiyang/tcpcopy,u20024804/tcpcopy,caosiyang/tcpcopy,left2right/tcpcopy,wfxiang08/tcpcopy,liviusATnetskope/second,eliteYang/tcpcopy,daodaoliang/tcpcopy,daodaoliang/tcpcopy,horryq/tcpcopy,u20024804/tcpcopy,horryq/tcpcopy,liviusATnetskope/second,left2right/tcpcopy,wfxiang08/tcpcopy,ycaihua/tcpcopy,sshling/tcpcopy