Schema: Connection Log Tables

This chapter contains information on the schema and supported joins for connection data.

For more information, see the sections listed in the following table. The Version column indicates the Database Access versions supported by each listed table.

 

Table 7-1 Schema for Connection Log Tables

See...
For the table that stores information on...
Version

connection_log

Individual connections. Supersedes deprecated table rna_flow.

5.0+

connection_summary

Connection log summaries. Supersedes deprecated table rna_flow_summary.

5.0+

si_connection_log

Individual connections. Used for security intelligence.

5.3+

connection_log

The connection_log table contains information on connection events. The Secure Firewall generates a connection event when a connection between a monitored host and any other host is established; the event contains detailed information about the monitored traffic.

The connection_log table supersedes the deprecated rna_flow table starting with Version 5.0 of the Secure Firewall.

For more information, see the following sections:

connection_log Fields

The following table describes the database fields you can access in the connection_log table.

 

Table 7-2 connection_log Fields

Field
Description

access_control_policy_name

The access control policy that contains the access control rule (or default action) that logged the connection.

access_control_policy_UUID

The UUID of the access control policy that contains the access control rule (or default action) that logged the connection.

access_control_reason

The reason that the access control rule logged the connection. One or more of the following:

  • IP Block
  • IP Monitor
  • User Bypass
  • File Monitor
  • File Block
  • Intrusion Monitor
  • Intrusion Block
  • File Resume Block
  • File Resume Allow
  • File Custom Detection
  • SSL Block
  • DNS Block
  • DNS Monitor
  • URL Block
  • URL Monitor
  • HTTP Injection
  • Intelligent App Bypass
  • blank if there is no connection logged

access_control_rule_action

The action associated with the access control rule (or default action): allow, block, and so on.

access_control_rule_id

An internal identification number for the rule.

access_control_rule_name

The access control rule (or default action) that logged the connection.

application_protocol_id

An internal identification number of the application protocol.

application_protocol_name

One of:

  • the name of the application, if a positive identification can be made
  • unknown if the system cannot identify the server based on known server fingerprints
  • pending if the system requires more data
  • blank if there is no application information in the connection

application_protocol_negotiations

The application protocol embedded in the transport layer security of the connection.

bytes_recv

The total number of bytes transmitted by the session responder.

bytes_sent

Total number of bytes transmitted by the session initiator.

cert_valid_end_date

The Unix timestamp on which the SSL certificate used in the connection ceases to be valid.

cert_valid_start_date

The Unix timestamp when the SSL certificate used in the connection was issued.

client_application_id

An internal identification number for the client application that was used in the intrusion event.

client_application_name

The client application, if available, that was used in the intrusion event. One of:

  • the name of the application, if a positive identification can be made.
  • a generic client name if the system detects a client application but cannot identify a specific one.
  • blank if there is no client application information in the connection.

client_application_version

The version of the client application.

connection_type

The detection source for the connection information. Either:

  • rna, if detected by a Cisco device
  • netflow, if exported by a NetFlow-enabled device

counter

Counter for the intrusion event associated with the connection event.

dns_ttl

The time to live for the DNS response, in seconds.

dns_response

DNS Response. Possible values include:

  • 0 — NoError — No Error
  • 1 — FormErr — Format Error
  • 2 — ServFail — Server Failure
  • 3 — NXDomain — Non-Existent Domain
  • 4 — NotImp — Not Implemented
  • 5 — Refused — Query Refused
  • 6 — YXDomain — Name Exists when it should not
  • 7 — YXRRSet — RR Set Exists when it should not
  • 8 — NXRRSet — RR Set that should exist does not
  • 9 — NotAuth — Not Authorized
  • 10 — NotZone — Name not contained in zone
  • 16 — BADSIG — TSIG Signature Failure
  • 17 — BADKEY — Key not recognized
  • 18 — BADTIME — Signature out of time window
  • 19 — BADMODE — Bad TKEY Mode
  • 20 — BADNAME — Duplicate key name
  • 21 — BADALG — Algorithm not supported
  • 22 — BADTRUNC — Bad Truncation
  • 3841 — NXDOMAIN — NXDOMAIN response from firewall
  • 3842 — SINKHOLE — Sinkhole response from firewall

domain_name

Name of the domain for the session.

domain_uuid

UUID of the domain for the session. This is presented in binary.

endpoint_profile

Name of the type of device used by the connection endpoint.

file_count

The number of files identified by Snort in a session. A record is generated for each file identified in the session.

first_packet_sec

The UNIX timestamp of the date and time the first packet of the session was seen.

first_packet_str

The date and time the first packet of the session was seen in human-readable format of Year-Month-Day Time. For example, February 4th, 2022 is 2022-02-04 20:18:58.

flow_id

This field is deprecated and returns null for all queries.

http_response_code

The response code given to the HTTP request in the connection.

hostname_in_query

The hostname used if the connection is a DNS query.

icmp_code

ICMP code if the event is ICMP traffic, or null if the event was not generated from ICMP traffic.

icmp_type

ICMP type if the event is ICMP traffic, or null if the event was not generated from ICMP traffic.

initiator_continent_name

The name of the continent of the host that initiated the session:

** — Unknown

na — North America

as — Asia

af — Africa

eu — Europe

sa — South America

au — Australia

an — Antarctica

initiator_country_id

Code for the country of the host that initiated the session.

initiator_country_name

Name of the country of the host that initiated the session.

initiator_ip

Field deprecated in Version 5.2. Due to backwards compatibility the value in this field is not set to null, but it is not reliable.

initiator_ip_address

Field deprecated in Version 5.0. Returns null for all queries.

initiator_ipaddr

A binary representation of the IP address of the host that initiated the session.

initiator_ipaddr_str

IP address of the host that initiated the session in human-readable format.

initiator_ipv4

Field deprecated in Version 5.2. Returns null for all queries.

initiator_port

The port used by the session initiator.

initiator_user_dept

The department of the user who last logged into the initiator host.

initiator_user_email

The email address of the user who last logged into the initiator host.

initiator_user_first_name

The first name of the user who last logged into the initiator host.

initiator_user_id

An internal identification number for the user who last logged into the initiator host.

initiator_user_last_name

The last name of the user who last logged into the initiator host.

initiator_user_last_seen_sec

The UNIX timestamp of the date and time the Secure Firewall last detected user activity for the user who last logged into the initiator host.

initiator_user_last_updated_sec

The UNIX timestamp of the date and time the Secure Firewall last updated the user record for the user who last logged into the initiator host.

initiator_user_name

The user name of the user who last logged into the initiator host.

initiator_user_phone

The phone number of the user who last logged into the initiator host.

instance_id

Numerical ID of the Snort instance on the managed device that generated the event.

interface_egress_name

The ingress interface associated with the connection.

interface_ingress_name

The egress interface associated with the connection.

ioc_count

Number of indications of compromise found in the connection.

ips_event_count

The number of intrusion events generated in the connection prior to intrusion event thresholding.

last_packet_sec

The UNIX timestamp of the date and time the last packet of the session was seen.

last_packet_str

The date and time the last packet of the session was seen in human-readable format of Year-Month-Day Time. For example, February 4th, 2022 is 2022-02-04 20:18:58.

location_ip

IP address of the interface communicating with ISE. Can be IPv4 or IPv6.

location_ip_str

IP address of the interface communicating with ISE in a human-readable format.

monitor_rule_id_1

The ID of the first monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_1.

monitor_rule_id_2

The ID of the second monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_2.

monitor_rule_id_3

The ID of the third monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_3.

monitor_rule_id_4

The ID of the fourth monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_4.

monitor_rule_id_5

The ID of the fifth monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_5.

monitor_rule_id_6

The ID of the sixth monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_6.

monitor_rule_id_7

The ID of the seventh monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_7.

monitor_rule_id_8

The ID of the eighth monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_8.

monitor_rule_name_1

The name of the first monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_1.

monitor_rule_name_2

The name of the second monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_2.

monitor_rule_name_3

The name of the third monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_3.

monitor_rule_name_4

The name of the fourth monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_4.

monitor_rule_name_5

The name of the fifth monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_5.

monitor_rule_name_6

The name of the sixth monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_6.

monitor_rule_name_7

The name of the seventh monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_7.

monitor_rule_name_8

The name of the eighth monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_8.

netbios_domain

The NetBIOS domain used in the connection.

netflow_dst_as

Netflow autonomous system number of the destination, either origin or peer.

netflow_dst_mask

Netflow destination address prefix mask.

netflow_dst_tos

Type of service from the IP header when packets are flowing from the destination to the source.

netflow_snmp_in

ID of the interface used by packets flowing from the source to the destination.

netflow_snmp_out

ID of the interface used by packets flowing from the destination to the source.

netflow_src_as

Netflow autonomous system number of the source, either origin or peer.

netflow_src_mask

Netflow source address prefix mask.

netflow_src_tos

Type of service from the IP header when packets are flowing from the source to the destination.

network_analysis_policy_name

The network analysis policy associated with the intrusion policy that generated the intrusion event.

network_analysis_policy_UUID

The UUID of the network analysis policy associated with the intrusion policy that generated the intrusion event.

original_client_continent_name

The name of the continent of the host that originally initiated the session:

** — Unknown

na — North America

as — Asia

af — Africa

eu — Europe

sa — South America

au — Australia

an — Antarctica

This field is used when there is a proxy in the connection.

original_client_country_id

Code for the country of the host that originally initiated the session. This field is used when there is a proxy in the connection.

original_client_country_name

Name of the country of the host that originally initiated the session. This field is used when there is a proxy in the connection.

original_client_ipaddr

A binary representation of the IP address of the host that originally initiated the session. This field is used when there is a proxy in the connection.

original_client_ipaddr_str

IP address of the host that originally initiated the session in human-readable format. This field is used when there is a proxy in the connection.

packets_recv

The total number of packets received by the host that initiated the session.

packets_sent

The total number of packets transmitted by the host that initiated the session.

prefilter_policy_name

The name of the prefilter policy that generated the intrusion event.

prefilter_policy_UUID

The UUID of the prefilter policy that generated the intrusion event.

prefilter_rule_id

The integer ID of the prefilter/tunnel rule.

prefilter_rule_name

The name of the prefilter/tunnel rule.

protocol_name

The name of the protocol used in the connection.

protocol_num

The IANA number of the protocol as listed in
http://www.iana.org/assignments/protocol-numbers.

qos_applied_interface_name

The name of the interface on which QoS was applied.

qos_dropped_bytes_recv

The number of responder bytes dropped due to QoS.

qos_dropped_bytes_sent

The number of initiator bytes dropped due to QoS.

qos_dropped_packets_recv

The number of responder packets dropped due to QoS.

qos_dropped_packets_sent

The number of initiator packets dropped due to QoS.

qos_policy_name

The name of the QoS policy.

qos_policy_uuid

The UUID of the QoS policy.

qos_rule_id

The integer ID of the QoS rule.

qos_rule_name

The name of the QoS rule.

responder_continent_name

The name of the continent of the host that responded to the session initiator:

** — Unknown

na — North America

as — Asia

af — Africa

eu — Europe

sa — South America

au — Australia

an — Antarctica

responder_country_id

Code for the country of the host that responded to the session initiator.

responder_country_name

Name of the country of the host that responded to the session initiator.

responder_ip

Field deprecated in Version 5.2. Due to backwards compatibility the value in this field is not set to null, but it is not reliable.

responder_ip_address

Field deprecated in Version 5.2. Returns null for all queries.

responder_ipaddr

A binary representation of the IPv4 or IPv6 address for the host that responded to the session initiator.

responder_ipaddr_str

IPv4 or IPv6 address for the host that responded to the session initiator in human-readable format.

responder_ipv4

Field deprecated in Version 5.2. Returns null for all queries.

responder_port

The port used by the session responder.

responder_user_dept

The department of the user who last logged into the host that responded to the session initiator.

responder_user_email

The email address of the user who last logged into the host that responded to the session initiator.

responder_user_first_name

The first name of the user who last logged into the host that responded to the session initiator.

responder_user_id

An internal identification number for the user who last logged into the host that responded to the session initiator.

responder_user_last_name

The last name of the user who last logged into the host that responded to the session initiator.

responder_user_last_seen_sec

The UNIX timestamp of the date and time the Secure Firewall last detected user activity for the user who last logged into the host that responded to the session initiator.

responder_user_last_updated_sec

The UNIX timestamp of the date and time the Secure Firewall last updated the user record for the user who last logged into the host that responded to the session initiator.

responder_user_name

The user name of the user who last logged into the host that responded to the session initiator.

responder_user_phone

The phone number of the user who last logged into the host that responded to the session initiator.

security_context

Description of the security context (virtual firewall) that the traffic passed through. Note that the system only populates this field for ASA FirePOWER devices in multi-context mode.

security_group

ID number of the network traffic group.

security_intelligence_category

This field is deprecated and returns null for all queries.

security_intelligence_ip

Whether the Security Intelligence-monitored IP address associated with the connection is a source IP ( src) or destination IP ( dst).

security_zone_egress_name

The egress security zone in the connection event.

security_zone_ingress_name

The ingress security zone in the connection event.

sensor_address

The IP address of the managed device that generated the event. Format is ipv4 address,ipv6 address.

sensor_name

The name of the managed device that monitored the session.

sensor_uuid

A unique identifier for the managed device, or 0 if sensor_name is null.

sinkhole

Revision UUID associated with the sinkhole object.

source_device

Field deprecated in Version 5.0. Returns null for all queries.

src_device_ip

Field deprecated in Version 5.2. Due to backwards compatibility the value in this field is not set to null, but it is not reliable.

src_device_ipaddr

Either:

  • A binary representation of the IP address of the NetFlow-enabled device that exported the connection data.
  • 0, for connections detected by Cisco managed devices.

src_device_ipaddr_str

Either:

  • The IP address of the NetFlow-enabled device that exported the connection data in human-readable format.
  • 0, for connections detected by Cisco managed devices.

src_device_ipv4

  • Field deprecated in Version 5.2. Returns null for all queries.

ssl_actual_action

The action performed on the connection based on the SSL Rule. This may differ from the expected action, as the action as specified in the rule may be impossible. Possible values include:

  • Unknown
  • Do Not Decrypt
  • Block
  • Block With Reset
  • Decrypt (Known Key)
  • Decrypt (Replace Key)
  • Decrypt (Resign)

ssl_cipher_suite

Encryption suite used by the SSL connection. The value is stored

in decimal format. See

www.iana.org/assignments/tls-parameters/tls-parameters.

xhtml for the cipher suite designated by the value.

ssl_expected_action

The action which should be performed on the connection based on the SSL Rule. Possible values include:

  • Unknown
  • Do Not Decrypt
  • Block
  • Block With Reset
  • Decrypt (Known Key)
  • Decrypt (Replace Key)
  • Decrypt (Resign)

ssl_flow_flags

The debugging level flags for an encrypted connection. Possible values include:

  • 0x00000001 — NSE_FLOW__VALID — must be set for other fields to be valid
  • 0x00000002 — NSE_FLOW__INITIALIZED — internal structures ready for processing
  • 0x00000004 — NSE_FLOW__INTERCEPT — SSL session has been intercepted
  • 0x40000000 — CH_CIPHERS_MODIFIED — Ciphers have been modified in the client hello.
  • 0x80000000 — CH_CURVES_MODIFIED — Cipher curves have been modified in the client hello.
  • 0x100000000 — CH_TLS_DOWNGRADED — The client side has downgraded the TLS version of the connection.
  • 0x200000000 — CH_SESSION_ID_ZEROED — The session ID in the client hello was removed.
  • 0x400000000 — CH_SESSION_TICKET_ZEROED — The session ticket in the client hello was removed.
  • 0x800000000 — CH_EXTENSION_REMOVED — A TLS extension was removed from the client hello.
  • 0x1000000000 — CH_ALPN_MODIFIED —The ALPN extension in the client hello was modified.
  • 0x2000000000 — CH_PADDING_MODIFIED — The padding extension in the client hello was modified.
  • 0x4000000000 — CH_MISMATCH — The cached server certficate used at client hello time was changed.
  • 0x8000000000 — CH_ALPN_HAS_H2 — The client hello's ALPN extension had HTTP/2.
  • 0x10000000000 — SH_ALPN_HAS_H2 — The server hello's ALPN extension had HTTP/2.

ssl_flow_messages

The messages exchanged between client and server during the SSL

handshake. See http://tools.ietf.org/html/rfc5246 for more

information.

  • 0x00000001 — NSE_MT__HELLO_REQUEST
  • 0x00000002 — NSE_MT__CLIENT_ALERT
  • 0x00000004 — NSE_MT__SERVER_ALERT
  • 0x00000008 — NSE_MT__CLIENT_HELLO
  • 0x00000010 — NSE_MT__SERVER_HELLO
  • 0x00000020 — NSE_MT__SERVER_CERTIFICATE
  • 0x00000040 — NSE_MT__SERVER_KEY_EXCHANGE
  • 0x00000080 — NSE_MT__CERTIFICATE_REQUEST
  • 0x00000100 — NSE_MT__SERVER_HELLO_DONE
  • 0x00000200 — NSE_MT__CLIENT_CERTIFICATE
  • 0x00000400 — NSE_MT__CLIENT_KEY_EXCHANGE
  • 0x00000800 — NSE_MT__CERTIFICATE_VERIFY
  • 0x00001000 — NSE_MT__CLIENT_CHANGE_CIPHER_SPEC
  • 0x00002000 — NSE_MT__CLIENT_FINISHED
  • 0x00004000 — NSE_MT__SERVER_CHANGE_CIPHER_SPEC
  • 0x00008000 — NSE_MT__SERVER_FINISHED
  • 0x00010000 — NSE_MT__NEW_SESSION_TICKET
  • 0x00020000 — NSE_MT__HANDSHAKE_OTHER
  • 0x00040000 — NSE_MT__APP_DATA_FROM_CLIENT
  • 0x00080000 — NSE_MT__APP_DATA_FROM_SERVER

ssl_flow_status

Status of the SSL Flow. These values describe the reason behind the action taken or the error message seen. Possible values include:

  • 'Unknown'
  • 'No Match'
  • 'Success'
  • 'Uncached Session'
  • 'Unknown Cipher Suite'
  • 'Unsupported Cipher Suite'
  • 'Unsupported SSL Version'
  • 'SSL Compression Used'
  • 'Session Undecryptable in Passive Mode'
  • 'Handshake Error'
  • 'Decryption Error'
  • 'Pending Server Name Category Lookup'
  • 'Pending Common Name Category Lookup'
  • 'Internal Error'
  • 'Network Parameters Unavailable'
  • 'Invalid Server Certificate Handle'
  • 'Server Certificate Fingerprint Unavailable'
  • 'Cannot Cache Subject DN'
  • 'Cannot Cache Issuer DN'
  • 'Unknown SSL Version'
  • 'External Certificate List Unavailable'
  • 'External Certificate Fingerprint Unavailable'
  • 'Internal Certificate List Invalid'
  • 'Internal Certificate List Unavailable'
  • 'Internal Certificate Unavailable'
  • 'Internal Certificate Fingerprint Unavailable'
  • 'Server Certificate Validation Unavailable'
  • 'Server Certificate Validation Failure'
  • 'Invalid Action'

ssl_issuer_common_name

Issuer Common name from the SSL certificate. This is typically the host and domain name of the certificate issuer, but may contain other information.

ssl_issuer_country

The country of the SSL certificate issuer.

ssl_issuer_organization

The organization of the SSL certificate issuer.

ssl_issuer_organization_unit

The organizational unit of the SSL certificate issuer.

ssl_policy_action

The default action configured for the policy when no rules match.

ssl_policy_name

ID number of the SSL policy that handled the connection.

ssl_policy_reason

The reason the SSL policy logged the SSL session.

ssl_rule_action

The action selected in the user interface for the SSL rule ( allow, block, and so forth).

ssl_rule_name

ID number of the SSL rule or default action that handled the connection.

ssl_serial_number

The serial number of the SSL certificate, assigned by the issuing CA.

ssl_server_name

Name provided in the server name indication in the SSL Client Hello.

ssl_subject_common_name

Subject Common name from the SSL certificate. This is typically the host and domain name of the certificate subject, but may contain other information.

ssl_subject_country

The country of the SSL certificate subject.

ssl_subject_organization

The organization of the SSL certificate subject.

ssl_subject_organization_unit

The organizational unit of the SSL certificate subject.

ssl_url_category

Category of the flow as identified from the server name and certificate common name.

ssl_version

The SSL or TLS protocol version used to encrypt the connection.

tcp_flags

The TCP flags detected in the session.

url

The URL requested by the monitored host during the session, if available.

url_category

This field is deprecated and returns null for all queries.

url_reputation

The reputation of the URL requested by the monitored host. One of the following:

  • 1 — High risk
  • 2 — Suspicious sites
  • 3 — Benign sites with security risks
  • 4 — Benign sites
  • 5 — Well known

web_application_id

An internal identification number for the web application.

web_application_name

One of:

  • the name of the application, if a positive identification can be made.
  • web browsing if the system detects an application protocol of HTTP but cannot identify a specific web application.
  • blank if the connection has no HTTP traffic.

connection_log Joins

You cannot perform joins on the connection_log table.

connection_log Sample Query

The following query returns up to 25 connection event records from the connection_log table, sorted in descending order based on packet timestamps.

SELECT first_packet_sec, last_packet_sec, initiator_ipaddr, responder_ipaddr, security_zone_ingress_name, security_zone_egress_name, initiator_port, protocol_name, responder_port, application_protocol_id, client_application_id, web_application_id, url, url_category, url_reputation

FROM connection_log

WHERE first_packet_sec <= UNIX_TIMESTAMP("2011-10-01 00:00:00" ) ORDER BY first_packet_sec

DESC, last_packet_sec DESC LIMIT 0, 25;

connection_summary

The connection_summary table contains information on connection summaries or aggregated connections. The Secure Firewall aggregates connections over five-minute intervals. To be aggregated, connections must:

  • have the same source and destination IP addresses
  • use the same protocol
  • use the same application
  • either be detected by the same managed device (for sessions detected by managed devices with Secure Firewall) or be exported by the same NetFlow-enabled device and processed by the same managed device

The aggregated data in a connection summary includes the total number of packets and bytes sent by the initiator and responder hosts, as well as the number of connections in the summary.

The connection_summary table supersedes the deprecated rna_flow_summary table starting with Version 5.0 of the Secure Firewall.

For more information, see the following sections:

connection_summary Fields

The following table describes the database fields you can access in the connection_summary table.

 

Table 7-3 connection_summary Fields

Field
Description

application_protocol_id

An internal identification number for the application protocol.

application_protocol_name

One of:

  • the name of the application, if a positive identification can be made
  • unknown if the system cannot identify the server based on known server fingerprints
  • pending if the system requires more data
  • blank if there is no application information in the connection

bytes_recv

The total number of bytes transmitted by the session responder.

bytes_sent

The total number of bytes transmitted by the session initiator.

connection_type

The detection source for the connection information. Either:

  • rna, if detected by a Cisco device
  • netflow, if exported by a NetFlow-enabled device

domain_name

Name of the domain for the session.

domain_uuid

UUID of the domain for the session. This is presented in binary.

flow_type

Field deprecated in Version 5.0. Returns null for all queries.

id

An internal identification number for the connection summary.

initiator_ip_address

Field deprecated in Version 5.2. Returns null for all queries.

initiator_ipaddr

A binary representation of the IP address of the host that initiated the session.

initiator_user_dept

The department of the user who last logged into the initiator host.

initiator_user_email

The email address of the user who last logged into the initiator host.

initiator_user_first_name

The first name of the user who last logged into the initiator host.

initiator_user_id

An internal identification number for the user who last logged into the initiator host.

initiator_user_last_name

The last name of the user who last logged into the initiator host.

initiator_user_last_seen_sec

The UNIX timestamp of the date and time the Secure Firewall last detected user activity for the user who last logged into the initiator host.

initiator_user_last_updated_sec

The UNIX timestamp of the date and time the Secure Firewall last updated the user record for the user who last logged into the initiator host.

initiator_user_name

The user name of the user who last logged into the initiator host.

initiator_user_phone

The phone number of the user who last logged into the initiator host.

interface_egress_name

This field is deprecated and returns null for all queries.

interface_ingress_name

This field is deprecated and returns null for all queries.

netmap_num

Netmap ID for the domain on which the connection was detected.

num_connections

The number of connections in the summary. For long-running connections, that is, connections that span multiple connection summary intervals, only the first connection summary is incremented.

original_client_ipaddr

A binary representation of the IP address of the host that originally initiated the session. This field is used when there is a proxy in the connection.

packets_recv

The total number of packets transmitted by the session responder.

packets_sent

The total number of packets transmitted by the session initiator.

protocol_name

The name of the protocol used in the aggregated sessions.

protocol_num

The IANA number of the protocol as listed in
http://www.iana.org/assignments/protocol-numbers.

responder_ip_address

Field deprecated in Version 5.2. Returns null for all queries.

responder_ipaddr

A binary representation of the IP address of the host that responded to the initiator of the aggregated sessions.

responder_port

The port used by the responder in the aggregated sessions.

responder_user_dept

The department of the user who last logged into the host that responded to the initiator of the aggregated sessions.

responder_user_email

The email address of the user who last logged into the host that responded to the initiator of the aggregated sessions.

responder_user_first_name

The first name of the user who last logged into the host that responded to the initiator of the aggregated sessions.

responder_user_id

An internal identification number for the user who last logged into the host that responded to the initiator of the aggregated sessions.

responder_user_last_name

The last name of the user who last logged into the host that responded to the initiator of the aggregated sessions.

responder_user_last_seen_sec

The UNIX timestamp of the date and time the Secure Firewall last detected user activity for the user who last logged into the host that responded to the initiator of the aggregated sessions.

responder_user_last_updated_sec

The UNIX timestamp of the date and time the Secure Firewall last updated the user record for the user who last logged into the host that responded to the session initiator.

responder_user_name

The user name of the user who last logged into the host that responded to the initiator of the aggregated sessions.

responder_user_phone

The phone number of the user who last logged into the host that responded to the initiator of the aggregated sessions.

security_zone_egress_name

The egress security zone in the connection event.

security_zone_ingress_name

The ingress security zone in the connection event.

sensor_address

The IP address of the managed device that generated the event. Format is ipv4_address,ipv6_address.

sensor_name

The name of the managed device that monitored the aggregated sessions.

sensor_uuid

A unique identifier for the managed device, or 0 if sensor_name is null.

source_device

The identification of the source device, which is either:

  • the IP address of the NetFlow-enabled device that exported the data for the connection
  • Secure Firewall if the connection was detected by a Cisco managed device

start_time_sec

The UNIX timestamp of the date and time the five-minute interval used to aggregate the sessions in the summary started.

connection_summary Joins

The following table describes the joins you can perform using the connection_summary table.

 

Table 7-4 connection_summary Joins

You can join this table on...
And...

application_protocol_id

application_info. application_id
application_host_map. application_id
application_tag_map. application_id
rna_host_service_info. application_protocol_id
rna_host_client_app_payload. web_application_id
rna_host_client_app_payload. client_application_id
rna_host_client_app. client_application_id
rna_host_client_app. application_protocol_id
rna_host_service_payload. web_application_id

initiator_ipaddr

or

responder_ipaddr

rna_host_ip_map. ipaddr
user_ipaddr_history. ipaddr

connection_summary Sample Query

The following query returns up to five connection event summary records detected by the selected device.

SELECT initiator_ipaddr, responder_ipaddr, protocol_name, application_protocol_id, source_device, sensor_name, sensor_address, packets_recv, packets_sent, bytes_recv, bytes_sent, connection_type, num_connections

FROM connection_summary

WHERE sensor_name='linden' limit 5;

si_connection_log

The si_connection_log table contains information on security intelligence events. The Secure Firewall generates a Security Intelligence event when a connection is on a block list or monitored by Security Intelligence; the event contains detailed information about the monitored traffic.

For more information, see the following sections:

si_connection_log Fields

The following table describes the database fields you can access in the si_connection_log table.

 

Table 7-5 si_connection_log Fields

Field
Description

access_control_policy_name

The access control policy that contains the access control rule (or default action) that logged the connection.

access_control_policy_UUID

The UUID of the access control policy that contains the access control rule (or default action) that logged the connection.

access_control_reason

The reason that the access control rule logged the connection. One or more of the following:

  • IP Block
  • IP Monitor
  • User Bypass
  • File Monitor
  • File Block
  • Intrusion Monitor
  • Intrusion Block
  • File Resume Block
  • File Resume Allow
  • File Custom Detection
  • SSL Block
  • DNS Block
  • DNS Monitor
  • URL Block
  • URL Monitor
  • HTTP Injection
  • Intelligent App Bypass
  • blank if there is no connection logged

access_control_rule_action

The action associated with the access control rule (or default action): allow, block, and so on.

access_control_rule_id

An internal identification number for the rule.

access_control_rule_name

The access control rule (or default action) that logged the connection.

application_protocol_id

An internal identification number of the application protocol.

application_protocol_name

One of:

  • the name of the application, if a positive identification can be made
  • unknown if the system cannot identify the server based on known server fingerprints
  • pending if the system requires more data
  • blank if there is no application information in the connection

application_protocol_negotiations

The application protocol embedded in the transport layer security of the connection.

bytes_recv

The total number of bytes transmitted by the session responder.

bytes_sent

Total number of bytes transmitted by the session initiator.

cert_valid_end_date

The Unix timestamp on which the SSL certificate used in the connection ceases to be valid.

cert_valid_start_date

The Unix timestamp when the SSL certificate used in the connection was issued.

client_application_id

An internal identification number for the client application that was used in the intrusion event.

client_application_name

The client application, if available, that was used in the intrusion event. One of:

  • the name of the application, if a positive identification can be made
  • a generic client name if the system detects a client application but cannot identify a specific one
  • blank if there is no client application information in the connection

client_application_version

The version of the client application.

connection_type

The detection source for the connection information. Either:

  • rna, if detected by a Cisco device
  • netflow, if exported by a NetFlow-enabled device

counter

Counter for the intrusion event associated with the connection event.

dns_ttl

The time to live for the DNS response, in seconds.

dns_response

DNS Response. Possible values include:

  • 0 — NoError — No Error
  • 1 — FormErr — Format Error
  • 2 — ServFail — Server Failure
  • 3 — NXDomain — Non-Existent Domain
  • 4 — NotImp — Not Implemented
  • 5 — Refused — Query Refused
  • 6 — YXDomain — Name Exists when it should not
  • 7 — YXRRSet — RR Set Exists when it should not
  • 8 — NXRRSet — RR Set that should exist does not
  • 9 — NotAuth — Not Authorized
  • 10 — NotZone — Name not contained in zone
  • 16 — BADSIG — TSIG Signature Failure
  • 17 — BADKEY — Key not recognized
  • 18 — BADTIME — Signature out of time window
  • 19 — BADMODE — Bad TKEY Mode
  • 20 — BADNAME — Duplicate key name
  • 21 — BADALG — Algorithm not supported
  • 22 — BADTRUNC — Bad Truncation
  • 3841 — NXDOMAIN — NXDOMAIN response from firewall
  • 3842 — SINKHOLE — Sinkhole response from firewall

domain_name

Name of the domain for the session.

domain_uuid

UUID of the domain for the session. This is presented in binary.

endpoint_profile

Name of the type of device used by the connection endpoint.

file_count

The number of files identified by snort in a session. A record is generated for each file identified in the session.

first_packet_sec

The UNIX timestamp of the date and time the first packet of the session was seen.

first_packet_str

The date and time the first packet of the session was seen in human-readable format of Year-Month-Day Time. For example, February 4th, 2022 is 2022-02-04 20:18:58.

http_response_code

The response code given to the HTTP request in the connection.

hostname_in_query

The hostname used if the connection is a DNS query.

icmp_code

ICMP code if the event is ICMP traffic, or null if the event was not generated from ICMP traffic.

icmp_type

ICMP type if the event is ICMP traffic, or null if the event was not generated from ICMP traffic.

initiator_continent_name

The name of the continent of the host that initiated the session.

** — Unknown

na — North America

as — Asia

af — Africa

eu — Europe

sa — South America

au — Australia

an — Antarctica

initiator_country_id

Code for the country of the host that initiated the session.

initiator_country_name

Name of the country of the host that initiated the session.

initiator_ipaddr

A binary representation of the IP address of the host that initiated the session.

initiator_ipaddr_str

IP address of the host that initiated the session in human-readable format.

initiator_port

The port used by the session initiator.

initiator_user_dept

The department of the user who last logged into the initiator host.

initiator_user_email

The email address of the user who last logged into the initiator host.

initiator_user_first_name

The first name of the user who last logged into the initiator host.

initiator_user_id

An internal identification number for the user who last logged into the initiator host.

initiator_user_last_name

The last name of the user who last logged into the initiator host.

initiator_user_last_seen_sec

The UNIX timestamp of the date and time the Secure Firewall last detected user activity for the user who last logged into the initiator host.

initiator_user_last_updated_sec

The UNIX timestamp of the date and time the Secure Firewall last updated the user record for the user who last logged into the initiator host.

initiator_user_name

The user name of the user who last logged into the initiator host.

initiator_user_phone

The phone number of the user who last logged into the initiator host.

instance_id

Numerical ID of the Snort instance on the managed device that generated the event.

interface_egress_name

The ingress interface associated with the connection.

interface_ingress_name

The egress interface associated with the connection.

ioc_count

Number of indications of compromise found in the connection.

ips_event_count

The number of intrusion events generated in the connection prior to intrusion event thresholding.

last_packet_sec

The UNIX timestamp of the date and time the last packet of the session was seen.

last_packet_str

The date and time the last packet of the session was seen in human-readable format of Year-Month-Day Time. For example, February 4th, 2022 is 2022-02-04 20:18:58.

location_ip

IP address of the interface communicating with ISE. Can be IPv4 or IPv6.

location_ip_str

IP address of the interface communicating with ISE in a human-readable format.

monitor_rule_id_1

The ID of the first monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_1.

monitor_rule_id_2

The ID of the second monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_2.

monitor_rule_id_3

The ID of the third monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_3.

monitor_rule_id_4

The ID of the fourth monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_4.

monitor_rule_id_5

The ID of the fifth monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_5.

monitor_rule_id_6

The ID of the sixth monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_6.

monitor_rule_id_7

The ID of the seventh monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_7.

monitor_rule_id_8

The ID of the eighth monitor rule associated with the connection. This ID is associated with the name stored in monitor_rule_name_8.

monitor_rule_name_1

The name of the first monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_1.

monitor_rule_name_2

The name of the second monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_2.

monitor_rule_name_3

The name of the third monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_3.

monitor_rule_name_4

The name of the fourth monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_4.

monitor_rule_name_5

The name of the fifth monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_5.

monitor_rule_name_6

The name of the sixth monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_6.

monitor_rule_name_7

The name of the seventh monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_7.

monitor_rule_name_8

The name of the eighth monitor rule associated with the connection. This name is associated with the ID stored in monitor_rule_id_8.

netbios_domain

The NetBIOS domain used in the connection.

netflow_dst_as

Netflow autonomous system number of the destination, either origin or peer.

netflow_dst_mask

Netflow destination address prefix mask.

netflow_dst_tos

Type of service from the IP header when packets are flowing from the destination to the source.

netflow_snmp_in

ID of the interface used by packets flowing from the source to the destination.

netflow_snmp_out

ID of the interface used by packets flowing from the destination to the source.

netflow_src_as

Netflow autonomous system number of the source, either origin or peer.

netflow_src_mask

Netflow source address prefix mask.

netflow_src_tos

Type of service from the IP header when packets are flowing from the source to the destination.

network_analysis_policy_name

The network analysis policy associated with the intrusion policy that generated the intrusion event.

network_analysis_policy_UUID

The UUID of the network analysis policy associated with the intrusion policy that generated the intrusion event.

original_client_continent_name

The name of the continent of the host that originally initiated the session:

** — Unknown

na — North America

as — Asia

af — Africa

eu — Europe

sa — South America

au — Australia

an — Antarctica

This field is used when there is a proxy in the connection.

original_client_country_id

Code for the country of the host that originally initiated the session. This field is used when there is a proxy in the connection.

original_client_country_name

Name of the country of the host that originally initiated the session. This field is used when there is a proxy in the connection.

original_client_ipaddr

A binary representation of the IP address of the host that originally initiated the session. This field is used when there is a proxy in the connection.

original_client_ipaddr_str

IP address of the host that originally initiated the session in human-readable format. This field is used when there is a proxy in the connection.

packets_recv

The total number of packets received by the host that initiated the session.

packets_sent

The total number of packets transmitted by the host that initiated the session.

prefilter_policy_name

The name of the prefilter policy that generated the intrusion event.

prefilter_policy_UUID

The UUID of the prefilter policy that generated the intrusion event.

prefilter_rule_id

The integer ID of the prefilter/tunnel rule.

prefilter_rule_name

The name of the prefilter/tunnel rule.

protocol_name

The name of the protocol used in the connection.

protocol_num

The IANA number of the protocol as listed in
http://www.iana.org/assignments/protocol-numbers.

qos_applied_interface_name

The name of the interface on which QoS was applied.

qos_dropped_bytes_recv

The number of responder bytes dropped due to QoS.

qos_dropped_bytes_sent

The number of initiator bytes dropped due to QoS.

qos_dropped_packets_recv

The number of responder packets dropped due to QoS.

qos_dropped_packets_sent

The number of initiator packets dropped due to QoS.

qos_policy_name

The name of the QoS policy.

qos_policy_uuid

The UUID of the QoS policy.

qos_rule_id

The integer ID of the QoS rule.

qos_rule_name

The name of the QoS rule.

responder_continent_name

The name of the continent of the host that responded to the session initiator.

** — Unknown

na — North America

as — Asia

af — Africa

eu — Europe

sa — South America

au — Australia

an — Antarctica

responder_country_id

Code for the country of the host that responded to the session initiator.

responder_country_name

Name of the country of the host that responded to the session initiator.

responder_ipaddr

A binary representation of the IPv4 or IPv6 address for the host that responded to the session initiator.

responder_ipaddr_str

IPv4 or IPv6 address for the host that responded to the session initiator in human-readable format.

responder_port

The port used by the session responder.

responder_user_dept

The department of the user who last logged into the host that responded to the session initiator.

responder_user_email

The email address of the user who last logged into the host that responded to the session initiator.

responder_user_first_name

The first name of the user who last logged into the host that responded to the session initiator.

responder_user_id

An internal identification number for the user who last logged into the host that responded to the session initiator.

responder_user_last_name

The last name of the user who last logged into the host that responded to the session initiator.

responder_user_last_seen_sec

The UNIX timestamp of the date and time the Secure Firewall last detected user activity for the user who last logged into the host that responded to the session initiator.

responder_user_last_updated_sec

The UNIX timestamp of the date and time the Secure Firewall last updated the user record for the user who last logged into the host that responded to the session initiator.

responder_user_name

The user name of the user who last logged into the host that responded to the session initiator.

responder_user_phone

The phone number of the user who last logged into the host that responded to the session initiator.

security_context

Description of the security context (virtual firewall) that the traffic passed through. Note that the system only populates this field for ASA FirePOWER devices in multi-context mode.

security_group

ID number of the network traffic group.

security_intelligence_category

This field is deprecated and returns null for all queries.

security_intelligence_ip

Whether the Security Intelligence-monitored IP address associated with the connection is a source IP ( src) or destination IP ( dst).

security_zone_egress_name

The egress security zone in the connection event.

security_zone_ingress_name

The ingress security zone in the connection event.

sensor_address

The IP address of the managed device that generated the event. Format is ipv4 address,ipv6 address.

sensor_name

The name of the managed device that monitored the session.

sensor_uuid

A unique identifier for the managed device, or 0 if sensor_name is null.

sinkhole

Revision UUID associated with the sinkhole object.

src_device_ipaddr

Either:

  • A binary representation of the IP address of the NetFlow-enabled device that exported the connection data
  • 0, for connections detected by Cisco managed devices.

src_device_ipaddr_str

Either:

  • The IP address of the NetFlow-enabled device that exported the connection data in human-readable format.
  • 0, for connections detected by Cisco managed devices.

ssl_actual_action

The action performed on the connection based on the SSL Rule.

This may differ from the expected action, as the action as specified

in the rule may be impossible. Possible values include:

  • 'Unknown'
  • 'Do Not Decrypt'
  • 'Block'
  • 'Block With Reset'
  • 'Decrypt (Known Key)'
  • 'Decrypt (Replace Key)'
  • 'Decrypt (Resign)'

ssl_cipher_suite

Encryption suite used by the SSL connection. The value is stored

in decimal format. See

www.iana.org/assignments/tls-parameters/tls-parameters.

xhtml for the cipher suite designated by the value.

ssl_expected_action

The action which should be performed on the connection based on

the SSL Rule. Possible values include:

  • 'Unknown'
  • 'Do Not Decrypt'
  • 'Block'
  • 'Block With Reset'
  • 'Decrypt (Known Key)'
  • 'Decrypt (Replace Key)'
  • 'Decrypt (Resign)'

ssl_flow_flags

The debugging level flags for an encrypted connection. Possible

values include:

  • 0x00000001 — NSE_FLOW__VALID — must be set for other fields to be valid
  • 0x00000002 — NSE_FLOW__INITIALIZED — internal structures ready for processing
  • 0x00000004 — NSE_FLOW__INTERCEPT — SSL session has been intercepted

ssl_flow_messages

The messages exchanged between client and server during the SSL

handshake. See http://tools.ietf.org/html/rfc5246 for more

information.

  • 0x00000001 — NSE_MT__HELLO_REQUEST
  • 0x00000002 — NSE_MT__CLIENT_ALERT
  • 0x00000004 — NSE_MT__SERVER_ALERT
  • 0x00000008 — NSE_MT__CLIENT_HELLO
  • 0x00000010 — NSE_MT__SERVER_HELLO
  • 0x00000020 — NSE_MT__SERVER_CERTIFICATE
  • 0x00000040 — NSE_MT__SERVER_KEY_EXCHANGE
  • 0x00000080 — NSE_MT__CERTIFICATE_REQUEST
  • 0x00000100 — NSE_MT__SERVER_HELLO_DONE
  • 0x00000200 — NSE_MT__CLIENT_CERTIFICATE
  • 0x00000400 — NSE_MT__CLIENT_KEY_EXCHANGE
  • 0x00000800 — NSE_MT__CERTIFICATE_VERIFY
  • 0x00001000 — NSE_MT__CLIENT_CHANGE_CIPHER_SPEC
  • 0x00002000 — NSE_MT__CLIENT_FINISHED
  • 0x00004000 — NSE_MT__SERVER_CHANGE_CIPHER_SPEC
  • 0x00008000 — NSE_MT__SERVER_FINISHED
  • 0x00010000 — NSE_MT__NEW_SESSION_TICKET
  • 0x00020000 — NSE_MT__HANDSHAKE_OTHER
  • 0x00040000 — NSE_MT__APP_DATA_FROM_CLIENT
  • 0x00080000 — NSE_MT__APP_DATA_FROM_SERVER

ssl_flow_status

Status of the SSL Flow. These values describe the reason behind the action taken or the error message seen. Possible values include:

  • 'Unknown'
  • 'No Match'
  • 'Success'
  • 'Uncached Session'
  • 'Unknown Cipher Suite'
  • 'Unsupported Cipher Suite'
  • 'Unsupported SSL Version'
  • 'SSL Compression Used'
  • 'Session Undecryptable in Passive Mode'
  • 'Handshake Error'
  • 'Decryption Error'
  • 'Pending Server Name Category Lookup'
  • 'Pending Common Name Category Lookup'
  • 'Internal Error'
  • 'Network Parameters Unavailable'
  • 'Invalid Server Certificate Handle'
  • 'Server Certificate Fingerprint Unavailable'
  • 'Cannot Cache Subject DN'
  • 'Cannot Cache Issuer DN'
  • 'Unknown SSL Version'
  • 'External Certificate List Unavailable'
  • 'External Certificate Fingerprint Unavailable'
  • 'Internal Certificate List Invalid'
  • 'Internal Certificate List Unavailable'
  • 'Internal Certificate Unavailable'
  • 'Internal Certificate Fingerprint Unavailable'
  • 'Server Certificate Validation Unavailable'
  • 'Server Certificate Validation Failure'
  • 'Invalid Action'

ssl_issuer_common_name

Issuer Common name from the SSL certificate. This is typically the host and domain name of the certificate issuer, but may contain other information.

ssl_issuer_country

The country of the SSL certificate issuer.

ssl_issuer_organization

The organization of the SSL certificate issuer.

ssl_issuer_organization_unit

The organizational unit of the SSL certificate issuer.

ssl_policy_action

The default action configured for the policy when no rules match.

ssl_policy_name

ID number of the SSL policy that handled the connection.

ssl_policy_reason

The reason the SSL policy logged the SSL session.

ssl_rule_action

The action selected in the user interface for the SSL rule ( allow, block, and so forth).

ssl_rule_name

ID number of the SSL rule or default action that handled the connection.

ssl_serial_number

The serial number of the SSL certificate, assigned by the issuing CA.

ssl_server_name

Name provided in the server name indication in the SSL Client Hello.

ssl_subject_common_name

Subject Common name from the SSL certificate. This is typically the host and domain name of the certificate subject, but may contain other information.

ssl_subject_country

The country of the SSL certificate subject.

ssl_subject_organization

The organization of the SSL certificate subject.

ssl_subject_organization_unit

The organizational unit of the SSL certificate subject.

ssl_url_category

Category of the flow as identified from the server name and certificate common name.

ssl_version

The SSL or TLS protocol version used to encrypt the connection.

tcp_flags

The TCP flags detected in the session.

url

The URL requested by the monitored host during the session, if available.

url_category

This field is deprecated and returns null for all queries.

url_reputation

The reputation of the URL requested by the monitored host. One of the following:

  • 1 — High risk
  • 2 — Suspicious sites
  • 3 — Benign sites with security risks
  • 4 — Benign sites
  • 5 — Well known

web_application_id

An internal identification number for the web application.

web_application_name

One of:

  • the name of the application, if a positive identification can be made.
  • web browsing if the system detects an application protocol of HTTP but cannot identify a specific web application.
  • blank if the connection has no HTTP traffic.

si_connection_log Joins

You cannot perform joins on the si_connection_log table.

si_connection_log Sample Query

The following query returns up to 25 connection event records from the si_connection_log table, sorted in descending order based on packet timestamps.

SELECT first_packet_sec, last_packet_sec, initiator_ipaddr, responder_ipaddr, security_zone_ingress_name, security_zone_egress_name, initiator_port, protocol_name, responder_port, application_protocol_id, client_application_id, web_application_id, url, url_category, url_reputation

FROM si_connection_log

WHERE first_packet_sec <= UNIX_TIMESTAMP("2011-10-01 00:00:00") ORDER BY first_packet_sec

DESC, last_packet_sec DESC LIMIT 0, 25;