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c97ab82a
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Ermal Lu?i
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# SNMP Traps - Simple Network Management Protocol (RFC1157)
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# Pattern attributes: good veryfast fast subset
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# Protocol groups: networking ietf_internet_standard
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# Wiki: http://en.wikipedia.org/wiki/SNMP
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# Copyright (C) 2008 Matthew Strait, Ethan Sommer; See ../LICENSE
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#
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# Usually runs on UDP ports 162
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#
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# These filters match SNMPv1 packets without fail, and are made
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# as specific as possible not to match any ASN.1 encoded protocols.
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# However these could still be matched by other protocols that
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# use ASN.1 encoding
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# Contributed by Goli SriSairam <goli_sai AT yahoo.com>
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# This pattern has been tested and is believe to work well.
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#
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# To get or provide more information about this protocol and/or pattern:
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# http://www.protocolinfo.org/wiki/SNMP
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# http://lists.sourceforge.net/lists/listinfo/l7-filter-developers
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# SNMPv1 Trap
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# matches SNMP trap header
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# version \x02\x01
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# community string \x04.+
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# PDU type \xa4 (TRAP)
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# enterprise \x06.+
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# agent address \x40\x04\.?.?.?.?
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# trap type \x02\x01.?
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# specific trap type \x02\x01.?
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# timestamp \x43
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snmp-trap
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^\x02\x01\x04.+\xa4\x06.+\x40\x04.?.?.?.?\x02\x01.?\x02\x01.?\x43
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