rsh is malfunctioning due to pf

From: Andrew Degtiariov (ad_at_astral-on.net)
Date: 11/26/04

  • Next message: Matt Thyer: "Why don't the packages get built for the runtime dependencies of the package I am building ?" 
    Date: Fri, 26 Nov 2004 22:33:54 +0200
To: freebsd-net@freebsd.org

    Hello people.
    I have ipcad installed on 2 PC's running 5.3-RELEASE and 5-STABLE from
    Nov 21. ipcad (ports/net-mgmt/ipcad) provides ability to control them
    by rsh (ipcad implement rsh server by yourself). While using pf with
    primitive rulesets rsh stops its working. It seems like pf drop short
    packets.

    Using tcpdump -n -e -ttt -i pflog0 I see:
    ...
    294896 rule 1/3(short): pass out on lo0: IP 127.0.0.1.514 > 127.0.0.1.680: FP 0:387(387) ack 18 win 35840 <nop,nop,timestamp[|tcp]>
    ...

    Some parts from pfctl -sa output
    FILTER RULES:
    pass in quick all
    pass out quick all

    ...
    Counters
      match 1319 8.1/s
      bad-offset 0 0.0/s
      fragment 0 0.0/s
      short 192 1.2/s
      normalize 0 0.0/s
      memory 0 0.0/s
    ... 

    -- 
Andrew Degtiariov 
DA-RIPE
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