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From: DThomazflowserve.com
Date: Wed Jul 03 2002 - 13:01:34 CDT

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    On Wed, 3 Jul 2002 DThomazflowserve.com wrote:

    >
    > How about removing and address from the rule.
    >
    > alert icmp $EXTERNAL_NET!172.20.11.3 any -> $HOME_NET any (msg:"MISC
    Large
    > ICMP Packet"; dsize: >800; reference:arachnids,246;
    classtype:bad-unknown;
    > sid:499; rev:1;)
    >
    > I do not want to see alerts from 172.20.11.3, should I edit at the rule
    or
    > at the snort.conf?
    > When I remove from the rule I get this error running snort
    >
    > Jul 3 11:16:40 ormnm9 snort: FATAL ERROR: ERROR /etc/snort//misc.rules
    (7)
    > => Rule netmask (16!172.20.11.3/30) didn't x-late, WTF?
    >

    Nope. Wrong syntax. Have a look at:

         http://www.snort.org/docs/writing_rules/chap2.html#tth_sEc2.2.3

    From what I'm reading, your question has changed a bit. Now you're wanting
    to
    'ignore' a host and/or type of traffic from that host, but no others. If
    that's correct, then have a look at this:

         http://www.theadamsfamily.net/~erek/snort/ignore.txt

    If I'm on wrong... *shrug* Guess that would be a penalty drink[0] for me.
    :)

    -----
    Erek Adams
    Nifty-Type-Guy
    TheAdamsFamily.Net

    [0] http://www.theadamsfamily.net/~erek/snort/drinking_game.txt