V 2.0 Traffic Messages 1

Vendor Documentation

https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-admin/monitoring/use-syslog-for-monitoring/syslog-field-descriptions/traffic-log-fields#idbe18d2d4-9eb8-4966-bec8-df3a6de70e66

Classification

Rule Name	Rule Type	Common Event	Classification
V 2.0 Traffic Messages	Base Rule	General Network Traffic	Network Traffic
V 2.0 Session Traffic Start Allowed	Sub Rule	Traffic Allowed by Network Firewall	Network Allow
V 2.0 Session Traffic Start Denied	Sub Rule	Traffic Denied by Network Firewall	Network Deny
V 2.0 Session Traffic Start Dropped	Sub Rule	Traffic Denied by Network Firewall	Network Deny
V 2.0 Session Traffic Start Reset	Sub Rule	Traffic Denied by Network Firewall	Network Deny
V 2.0 Session Traffic End Allowed	Sub Rule	Traffic Allowed by Network Firewall	Network Allow
V 2.0 Session Traffic End Denied	Sub Rule	Traffic Denied by Network Firewall	Network Deny
V 2.0 Session Traffic End Dropped	Sub Rule	Traffic Denied by Network Firewall	Network Deny
V 2.0 Session Traffic End Reset	Sub Rule	Traffic Denied by Network Firewall	Network Deny
V 2.0 Session Traffic Drop Allowed	Sub Rule	Traffic Allowed by Network Firewall	Network Allow
V 2.0 Session Traffic Drop Denied	Sub Rule	Traffic Denied by Network Firewall	Network Deny
V 2.0 Session Traffic Drop	Sub Rule	Traffic Denied by Network Firewall	Network Deny
V 2.0 Session Traffic Drop Reset	Sub Rule	Traffic Denied by Network Firewall	Network Deny
V 2.0 Session Traffic Deny Allowed	Sub Rule	Traffic Allowed by Network Firewall	Network Allow
V 2.0 Session Traffic Denied	Sub Rule	Traffic Denied by Network Firewall	Network Deny
V 2.0 Session Traffic Deny Dropped	Sub Rule	Traffic Denied by Network Firewall	Network Deny
V 2.0 Session Traffic Deny Reset	Sub Rule	Traffic Denied by Network Firewall	Network Deny

Mapping with LogRhythm Schema

Device Key in Log Message	LogRhythm Schema	Data Type	Schema Description
Header: Severity	<severity>	Text/String	N/A
Type (type)	<vmid>	Text/String	Specifies the type of log; the value is TRAFFIC
Threat/Content Type (subtype)	<vendorinfo> <tag1>	Text/String	Subtype of traffic log; values are start, end, drop, and deny Start—session started End—session ended Drop—The session dropped before the application is identified and there is no rule that allows the session. Deny—The session is dropped after the application is identified, and there is a rule to block it or no rule that allows it.
Source Address (src)	<sip>	IP Address	Original session source IP address
Destination Address (dst)	<dip>	IP Address	Original session destination IP address
NAT Source IP (natsrc)	<snatip>	IP Address	If Source NAT is performed, the post-NAT Source IP address
NAT Destination IP (natdst)	<dnatip>	IP Address	If Destination NAT is performed, the post-NAT Destination IP address
Rule Name (rule)	<policy>	Text/String	Name of the rule that the session matched
Source User (srcuser)	<domainorigin> <login>	Text/String	The username of the user who initiated the session
Destination User (dstuser)	<domainimpacted> <account>	Text/String	The username of the user to which the session was destined
Application (app)	<object>	Text/String	Application associated with the session
Inbound Interface (inbound_if)	<sinterface>	Text/String	Interface that the session was sourced from
Outbound Interface (outbound_if)	<dinterface>	Text/String	The interface that the session was destined to
Session ID (sessionid)	<session>	Number	An internal numerical identifier is applied to each session
Source Port (sport)	<sport>	Number	Source port utilized by the session
Destination Port (dport)	<dport>	Number	Destination port utilized by the session
NAT Source Port (natsport)	<snatport>	Number	Post-NAT source port
NAT Destination Port (natdport)	<dnatport>	Number	Post-NAT destination port
IP Protocol (proto)	<protname>	Text/String	IP protocol associated with the session
Action (action)	<action> <tag2>	Text/String	Action taken for the session; possible values are: allow—the session was allowed by policy deny—the session was denied by policy drop—the session was dropped silently drop ICMP—the session was silently dropped with an ICMP unreachable message to the host or application reset both—session was terminated and a TCP reset is sent to both sides of the connection reset client—the session was terminated and a TCP reset is sent to the client reset server—session was terminated and a TCP reset is sent to the server
Bytes Sent (bytes_sent)	<bytesin>	Number	Number of bytes in the client-to-server direction of the session
Bytes Received (bytes_received)	<bytesout>	Number	Number of bytes in the server-to-client direction of the session
Elapsed Time (elapsed)	<seconds>	Number	The elapsed time of the session
Category (category)	<subject>	Text/String	URL category associated with the session (if applicable)
Packets Sent (pkts_sent)	<packetsin>	Number	Number of client-to-server packets for the session
Packets Received (pkts_received)	<packetsout>	Number	Number of server-to-client packets for the session
Session End Reason (session_end_reason)	<reason>	Text/String	The reason a session was terminated. If the termination had multiple causes, this field displays only the highest priority reason. The possible session end reason values are as follows, in order of priority (where the first is highest): threat—The firewall detected a threat associated with a reset, drop, or block (IP address) action. policy-deny—The session matched a security rule with a deny or drop action. decrypt-cert-validation—The session terminated because you configured the firewall to block SSL forward proxy decryption or SSL inbound inspection when the session uses client authentication or when the session uses a server certificate with any of the following conditions: expired, untrusted issuer, unknown status, or status verification time-out. This session end reason also displays when the server certificate produces a fatal error alert of type bad_certificate, unsupported_certificate, certificate_revoked, access_denied, or no_certificate_RESERVED (SSLv3 only). decrypt-unsupport-param—The session terminated because you configured the firewall to block SSL forward proxy decryption or SSL inbound inspection when the session uses an unsupported protocol version, cipher, or SSH algorithm. This session end reason is displayed when the session produces a fatal error alert of type unsupported_extension, unexpected_message, or handshake_failure. decrypt-error—The session terminated because you configured the firewall to block SSL forward proxy decryption or SSL inbound inspection when firewall resources or the hardware security module (HSM) were unavailable. This session end reason is also displayed when you configured the firewall to block SSL traffic that has SSL errors or that produced any fatal error alert other than those listed for the decrypt-cert-validation and decrypt-unsupported-param end reasons. tcp-rst-from-client—The client sent a TCP reset to the server. tcp-rst-from-server—The server sent a TCP reset to the client. resources-unavailable—The session dropped because of a system resource limitation. For example, the session could have exceeded the number of out-of-order packets allowed per flow or the global out-of-order packet queue. tcp-fin—Both hosts in the connection sent a TCP FIN message to close the session. tcp-reuse—A session is reused and the firewall closes the previous session. decoder—The decoder detects a new connection within the protocol (such as HTTP-Proxy) and ends the previous connection. aged-out—The session aged out. unknown—This value applies in the following situations: Session terminations that the preceding reasons do not cover (for example, a clear session all command). For logs generated in a PAN-OS release that does not support the session end reason field (releases older than PAN-OS 6.1), the value will be unknown after an upgrade to the current PAN-OS release or after the logs are loaded onto the firewall. In Panorama, logs received from firewalls for which the PAN-OS version does not support session end reasons will have an unknown value. n/a—This value applies when the traffic log type is not end.
Device Name (device_name)	<objectname>	Text/String	The hostname of the firewall on which the session was logged.
Application Category (category_of_app)**	<objecttype>	Text/String	The application category is specified in the application configuration properties. Values are: business-systems collaboration general-internet media networking saas
Application Characteristic (characteristic_of_app)**	<result>	Text/String	Comma-separated list of applicable characteristics of the application