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From: Krzysztof Zaraska (kzaraskastudent.uci.agh.edu.pl)
Date: Fri Apr 05 2002 - 05:10:53 CST

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    On Fri, 5 Apr 2002 12:59:44 +0200 Krzysztof Zaraska wrote:

    > On Fri, 05 Apr 2002 07:44:45 -0000 ozkan_kirik wrote:
    >
    > > after i built my kernel, i couldnt ping to anywhere even router, & i
    > > couldnt ping to my firewall.
    >
    > I don't quite understand you... Usually the firewall should be setup the
    > way allowing you to ping outside host, but the external world should not
    > be able to ping you.
    >
    > > what the problem can be?
    > >
    > > the options on kernel are:
    > >
    > > IPFIREWALL
    > > IPDIVERT
    > > IPFIREWALL_FORWARD
    > > IPFIREWALL_VERBOSE
    > > IPFIREWALL_VERBOSE_LIMIT=100
    > > IPFIREWALL_DEFAULT_TO_ACCEPT
    > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    >
    > This will let through any traffic not explicitely denied.
    >
    > Standard recommended setup is 'default to deny'.
    >
    > > IPFILTER
    > > IPFILTER_LOG
    >
    > Are you sure you want to run both ipf and ipfw at the same time?

    Ooops, missed previous thread on the subject. Sorry. It _makes_ sense.

    Did you try looking at counters for each firewall rule and/or your logs
    while pinging? You may have a misconfigured ruleset, ending up in dropping
    packets that should be let through. Just a guess.

    -- 
    // Krzysztof Zaraska * kzaraska (at) student.uci.agh.edu.pl
    // Prelude IDS: http://www.prelude-ids.org/
    // A dream will always triumph over reality, once it is given the chance.
    //		-- Stanislaw Lem
    

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