1# SNMP - Simple Network Management Protocol - RFC 1157 2# Pattern attributes: good veryfast fast superset 3# Protocol groups: networking ietf_internet_standard 4# Wiki: http://www.protocolinfo.org/wiki/SNMP 5# 6# Usually runs on UDP ports 161 (monitoring) and 162 (traps). 7# 8# These filters match SNMPv1 packets without fail, and are made as 9# specific as possible not to match any ASN.1 encoded protocols. However 10# these could still be matched by other protocols that use ASN.1 encoding 11 12# Contributed by Goli SriSairam <goli_sai AT yahoo.com> 13 14# This pattern has been tested and is believed to work well. 15 16# All SNMPv1 traffic. See snmp-mon.pat and snmp-trap.pat for details. 17snmp 18^\x02\x01\x04.+([\xa0-\xa3]\x02[\x01-\x04].?.?.?.?\x02\x01.?\x02\x01.?\x30|\xa4\x06.+\x40\x04.?.?.?.?\x02\x01.?\x02\x01.?\x43) 19