Hi Charles,

[note: I'm not up on the -R or -AF flag details in IPF logs]

You could try with "flags S/SA" to enter the state entry
just on the first SYN packet of any connection to/from
your trusted hosts - S/SA being the most generous
"start condition" combination, because it doesn't care
about any FRUP flags; assuming TCP of course
(just a thought, no guarantee it'll make a difference:)


Also, check out "ipfstat" and "ipfstat -s" occasionally,
to see how your state table is going (are you running
hundreds+ of concurrent sessions, or perhaps thousands
of non-concurrent adjacent short sessions like HTTP?)

IIRC some (but I think earlier?) versions of IP Filter
may have left old sessions in the state table too long,
not clearing them out properly. That might result in
some new states being lost. If you're problem is only
under heavy traffic or after lots of traffic perhaps
check the changelog for updates to the state code
and see if any sound relevant?

Rgds, Stuart.


Stuart Remphrey
RMIT ITS Infrastructure Services - Unix Systems
Phone (03) 992 55 070  (or extension 55070)

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