On Fri, Dec 11, 2009 at 7:30 PM, Doug Hardie <bc...@lafn.org> wrote: > I am running 7.2-Stable with pf. I have the following pf.conf: > > no rdr inet proto tcp from <spamd-white-local> to any port smtp > no rdr inet proto tcp from <spamd-white> to any port smtp > rdr pass inet proto tcp from any to any port smtp -> 127.0.0.1 port spamd > > This is the basic spamd configuration with an extra table > <spamd-white-local> which lists hosts to go directly to the mail server. > Everything works properly. Hosts not in either spamd table go to spamd and > those in either spamd table go directly to the mail server. However, the pf > statistics don't seem to make sense to me. I always see the following: > > no rdr inet proto tcp from <spamd-white-local> to any port = smtp > [ Evaluations: 1193433 Packets: 0 Bytes: 0 States: 0 > ] > [ Inserted: uid 0 pid 73310 ] > no rdr inet proto tcp from <spamd-white> to any port = smtp > [ Evaluations: 110124 Packets: 0 Bytes: 0 States: 0 > ] > [ Inserted: uid 0 pid 73310 ] > rdr pass inet proto tcp from any to any port = smtp -> 127.0.0.1 port 8025 > [ Evaluations: 110124 Packets: 63 Bytes: 3516 States: 1 > ] > [ Inserted: uid 0 pid 73310 ] > > Where the first two entries never show any Packets and the third shows > everything. Does "no rdr" work differently than "rdr" with the statistics? > I understood from the Book of PF that the rules were evaluated such that > the last matching rule is used. Hence I think that with the above conf file > the spamd-white-local table would never get used as the connection will > match one of the 2 following rules. > > So I ran another test by putting the first rule last: > > no rdr inet proto tcp from <spamd-white> to any port smtp > rdr pass inet proto tcp from any to any port smtp -> 127.0.0.1 port spamd > no rdr inet proto tcp from <spamd-white-local> to any port smtp > > Now entries in <spamd-white-local> are ignored and, the statistics are > quite different: > > no rdr inet proto tcp from <spamd-white> to any port = smtp > [ Evaluations: 79 Packets: 0 Bytes: 0 States: 0 > ] > [ Inserted: uid 0 pid 86983 ] > rdr pass inet proto tcp from any to any port = smtp -> 127.0.0.1 port 8025 > [ Evaluations: 52 Packets: 25 Bytes: 1395 States: 1 > ] > [ Inserted: uid 0 pid 86983 ] > no rdr inet proto tcp from <spamd-white-local> to any port = smtp > [ Evaluations: 0 Packets: 0 Bytes: 0 States: 0 > ] > [ Inserted: uid 0 pid 86983 ] > > > Now the last rule says its never evaluated. This indicates that its the > first rule that matches that is used rather than the last. However, why are > there never any packets counted in the "no rdr" rules? > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscr...@freebsd.org" >
Do you have a "pass in proto tcp to port smpt" or some such rule that is capturing the rest of the packets/accounting stats? I believe the "pass" in the second test (rdr pass inet proto tcp from any to any port = smtp -> 127.0.0.1 port 8025) is short circuiting your assumed "last match wins". The full pf.conf would be helpful _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
