(?P<Timestamp>\b(?:Jan(?:uary)?|Feb(?:ruary)?|Mar(?:ch)?|Apr(?:il)?|May|Jun(?:e)?|Jul(?:y)?|Aug(?:ust)?|Sep(?:tember)?|Oct(?:ober)?|Nov(?:ember)?|Dec(?:ember)?)\s+\d+\s+\d+:\d+:\d+)\b\s+(?P<FW_ip_addr>\d+\.\d+\.\d+\.\d+)\s+(?P<Event_id>%\w+-\d+-\d+):\s+(?P<Event_message>Built (inbound|outbound) ICMP connection for faddr)\s+(?P<foreign_ip_addr>.*)\s+gaddr\s+(?P<global_ip_addr>.*)\s+laddr\s+(?P<local_ip_addr>.*)