dynamic ftp rule

[email protected] (Sandwich Maker) Fri, 5 Aug 2011 14:29:32 -0400 (EDT)

Newsgroups	gmane.comp.security.firewalls.ipfilter
Message-ID	<22811_1312569087_4E3C36FF_22811_14804_1_201108051829.p75ITW507774@an.bradford.ma.us>

solaris 8, ipf 3.4.35.

is it possible to construct a rule which allows incoming port 20
[ftp-data] -only- when an outgoing port 21 [ftp] connection is active?
anyone have an example?
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
[email protected]                       and think what none thought