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KATO Hiroshi <hkato@astrodesign.co.jp>:
>   $BJL<ALd$G$9$,!"@_Dj%U%!%$%k$J$I$G$3$3$$$i$rJQ99$G$-$k!"(B
>   $B#f#t#p%G!<%b%s$C$F$"$j$^$9$G$7$g$&$+!)(B

$B$"$j$^$9!#(B

wu-ftpd-2.6.0 $B$G$O!"(Bftpaccess $B$N@_Dj$G2DG=$G$9!#(B

       passive ports <cidr> <min> <max>

            Allows control of the TCP port numbers which  may  be
            used  for  a passive data connection.  If the control
            connection matches the <cidr> a  port  in  the  range
            <min> to <max> will be randomly selected for the dae-
            mon to listen on.  This feature allows  firewalls  to
            limit  the ports which remote clients may use to con-
            nect into the protected network.

            <cidr> is shorthand for an IP address in  dotted-quad
            notation  followed by a slash and the number of left-
            most bits which represent  the  network  address  (as
            opposed  to  the  machine  address).  For example, if
            you're using the reserved class-A network 10, instead
            of  a  netmask  of  255.0.0.0  use a CIDR of /8 as in
            10.0.0.0/8 to represent your network.

----
$B$3$,$h$&$$$A$m$&(B
