About This Guide

The following topics explain how to use this guide.

What’s New in Each Release

This section provides the following new or changed logging information for ASA.

  • Timestamp Logging: Beginning with version 9.10(1), ASA provides the option to enable timestamp as per RFC 5424 in eventing syslogs. When this option is enabled, all timestamp of syslog messages would be displaying the time, in UTC, as per RFC 5424 format. Following is a sample output with RFC 5424 format: 

    <166>2018-06-27T12:17:46Z asa : %ASA-6-110002: Failed to locate egress interface for protocol from src interface :src IP/src port to dest IP/dest port

The following section provides new, changed, and deprecated syslog messages for the following ASA releases:

For Version 9.22(1), there are no new, changed, or deprecated syslog messages.

For Version 9.20(2), there are no new, changed, or deprecated syslog messages.

The following table lists the new, changed, and deprecated syslog message for Version 9.20(1). For complete syslog message descriptions, see respective chapters.

Table 1. New, Changed, and Deprecated Syslog Messages for Version 9.20(1)

New Syslog Messages

870001, 880001

Changed Syslog Messages (Document)

None
Changed Syslog Messages (Code)

302020, 302021

For Version 9.19(1), there are no new, changed, or deprecated syslog messages.

For Version 9.18(1), there are no new, changed, or deprecated syslog messages.

The following table lists the new, changed, and deprecated syslog message for Version 9.17(1). For complete syslog message descriptions, see respective chapters.

Table 2. New, Changed, and Deprecated Syslog Messages for Version 9.17(1)

New Syslog Messages

709009, 709010, 709011, 709012, 709013

Changed Syslog Messages (Document)

None
Changed Syslog Messages (Code)

None

The following table lists the new, changed, and deprecated syslog message for Version 9.16(1). For complete syslog message descriptions, see respective chapters.

Table 3. New, Changed, and Deprecated Syslog Messages for Version 9.16(1)

New Syslog Messages

717032, 305021, 305022, 317077, 317077, 324302, 324303, 733201, 812005, 812006

Changed Syslog Messages (Document)

717009
Changed Syslog Messages (Code)

None

Deprecated Syslog Messages

716055 and 716056

The following table lists the new, changed, and deprecated syslog message for Version 9.15(1). For complete syslog message descriptions, see respective chapters.

Table 4. New, Changed, and Deprecated Syslog Messages for Version 9.15(1)

New Syslog Messages

None

Changed Syslog Messages (Document)

105042, 105003, 105004, 105043, 305006, 414004
Changed Syslog Messages (Code)

302013, 302014

The following table lists the new, changed, and deprecated syslog message for Version 9.14(1). For complete syslog message descriptions, see respective chapters.

Table 5. New, Changed, and Deprecated Syslog Messages for Version 9.14(1)

New Syslog Messages

209006, 324012

The following table lists the new, changed, and deprecated syslog message for Version 9.13(1). For complete syslog message descriptions, see respective chapters.

Table 6. New, Changed, and Deprecated Syslog Messages for Version 9.13(1)

New Syslog Messages

 113045, 121001, 121002, 121003, 302311, 305018, 305019, 305020, 324010, 324011, 769007, 769009

Changed Syslog Messages

Deprecated Syslog Messages

 717008, 717009, 717012, 717018, 717024, 717031

The following table lists the new, changed, and deprecated syslog messages for Version 9.12(1). For complete syslog message descriptions, see respective chapters.

Table 7. New, Changed, and Deprecated Syslog Messages for Version 9.12(1)

New Syslog Messages

 305017, 308003, 308004, 339006, 339007, 339008, 408101, 408102, 409014, 409015, 409016, 409017, 419004-419006, 503002, 503003, 503004, 503005, 716165 , 737038, 737200-737206, 737400-737407, 747042, 747043, 747044, 768003, 768004, 815002, 815003, 815004

Changed Syslog Messages

 737001-737019, 737026, 737031-737036

Deprecated Syslog Messages

The following table lists the new, changed, and deprecated syslog messages for Version 9.10(1). For complete syslog message descriptions, see respective chapters.

Table 8. New, Changed, and Deprecated Syslog Messages for Version 9.10(1)

New Syslog Messages

 339001, 339002, 339003, 339004, 339005, 850001, 850002

Changed Syslog Messages

 725002

Deprecated Syslog Messages

The following table lists the new, changed, and deprecated syslog messages for Version 9.9(1). For complete syslog message descriptions, see respective chapters.

Table 9. New, Changed, and Deprecated Syslog Messages for Version 9.9(2)

New Syslog Messages

199027, 747037, 747038, 747039, 747040, 747041

Changed Syslog Messages

(Documentation)

321006, 747023, 747024, 747034, 747035, 747036

Changed Syslog Messages

(Code)

747023, 747024, 747034, 747035, 747036

Deprecated Syslog Messages

815001, 815002
Table 10. New, Changed, and Deprecated Syslog Messages for Version 9.9(1)

New Syslog Messages

104500, 104501, 104502, 105500, 105501, 105502, 105503, 105504, 105505, 105506, 105507, 105508, 105509, 105510, 105511, 105512, 105513, 105514, 105515, 105516, 105517, 105518, 105519, 105520, 105521, 105522, 105523, 105524, 105525, 105526, 105527, 105528, 105529, 105530, 105531, 105532, 105533, 105534, 105535, 105536, 105537, 105538, 105539, 105540, 105541, 105542, 105543, 105544, 105545, 105546, 105547, 105548, 105549, 105550, 105551, 105552, 105553, 418018, 418019, 418040, 750015, 751028

Changed Syslog Messages

(Documentation)

302014

Changed Syslog Messages

(Code)

302014

Deprecated Syslog Messages

The following table lists the new, changed, and deprecated syslog messages for Version 9.8(2). For complete syslog message descriptions, see respective chapters.

Table 11. New, Changed, and Deprecated Syslog Messages for Version 9.8(2)

New Syslog Messages

753001, 840001, 8300001, 8300002, 8300003, 8300004, 8300005, 8300006

Changed Syslog Messages

(Documentation)

Changed Syslog Messages

(Code)

Deprecated Syslog Messages

The following table lists the new, changed, and deprecated syslog messages for Version 9.8(1). For complete syslog message descriptions, see respective chapters.

Table 12. New, Changed, and Deprecated Syslog Messages for Version 9.8(1)

New Syslog Messages

109105, 602306, 750013

Changed Syslog Messages

(Documentation)

302020, 302021

Changed Syslog Messages

(Code)

302020, 302021

Deprecated Syslog Messages

The following table lists the new, changed, and deprecated syslog messages for Version 9.7(1). For complete syslog message descriptions, see respective chapters.

Table 13. New, Changed, and Deprecated Syslog Messages for Version 9.7(1)

New Syslog Messages

717061, 717062, 717063, 717064, 4302310, 806001, 806002, 806003, 806004, 806005, 806006, 806007,806008, 806009, 806010, 806011, 806012, 815001, 815002

Changed Syslog Messages

(Documentation)

304001

Changed Syslog Messages

(Code)

304001

Deprecated Syslog Messages

The following table lists the new, changed, and deprecated syslog messages for Version 9.6(2). For complete syslog message descriptions, see respective chapters.

Table 14. New, Changed, and Deprecated Syslog Messages for Version 9.6(2)

New Syslog Messages

315013, 337000, 337001, 717059, 717060, 769005, 769006

Changed Syslog Messages

(Documentation)

103001,769004

Changed Syslog Messages

(Code)

103001, 113015, 113016, 113017, 769004

Deprecated Syslog Messages

The following table lists the new, changed, and deprecated syslog messages for Version 9.6(1). For complete syslog message descriptions, see respective chapters.

Table 15. New, Changed, and Deprecated Syslog Messages for Version 9.6(1)

New Syslog Messages

604201-604208, 618001, 703008

Changed Syslog Messages

(Documentation)

Changed Syslog Messages

(Code)

776005, 776014, 776015, 776017, 776018, 776019, 776251, 776252, 776253, 776254

Deprecated Syslog Messages

The following table lists the new, changed, and deprecated syslog messages for Version 9.5(2). For complete syslog message descriptions, see respective chapters.

Table 16. New, Changed, and Deprecated Syslog Messages for Version 9.5(2)

New Syslog Messages

717057, 717058, 722056, 747036, 748201-748203, 785001

Changed Syslog Messages

(Documentation)

None

Changed Syslog Messages

(Code)

None

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 9.5(1). For complete syslog message descriptions, see respective chapters.

Table 17. New, Changed, and Deprecated Syslog Messages for Version 9.5(1)

New Syslog Messages

302035, 302036, 302305, 302306, 305014, 305016, 725017, 747034, 747035, 748100-748103

Changed Syslog Messages

(Documentation)

500001, 500002

Changed Syslog Messages

(Code)

500001, 500002

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 9.4(1.225). For complete syslog message descriptions, see respective chapters.

Table 18. New, Changed, and Deprecated Syslog Messages for Version 9.4(1.225)

New Syslog Messages

218005, 804001-804002, 803003

Changed Syslog Messages

(Documentation)

None

Changed Syslog Messages

(Code)

803001, 803002

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 9.4(1.150). For complete syslog message descriptions, see respective chapters.

Table 19. New, Changed, and Deprecated Syslog Messages for Version 9.4(1.150)

New Syslog Messages

748001-748009, 803001-803002

Changed Syslog Messages

(Documentation)

None

Changed Syslog Messages

(Code)

None

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 9.4(1). For complete syslog message descriptions, see respective chapters.

Table 20. New, Changed, and Deprecated Syslog Messages for Version 9.4(1)

New Syslog Messages

109040, 315012, 402149, 402150, 717052-717056, 751027

Changed Syslog Messages

(Documentation)

405001, 730005

Changed Syslog Messages

(Code)

730005

Deprecated Syslog Messages

337001-337009, 339001-339009, 608006

The following table lists the new, changed, and deprecated syslog messages for Version 9.3(3). For complete syslog message descriptions, see respective chapters.

Table 21. New, Changed, and Deprecated Syslog Messages for Version 9.3(3)

New Syslog Messages

None

Changed Syslog Messages

(Documentation)

109006, 113005, 113014-113016, 315011, 603106, 605004, 611101, 611102, 716039

Changed Syslog Messages

(Code)

109006, 113005, 113014-113016, 315011, 603106, 605004, 611101, 611102, 716039

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 9.3(2). For complete syslog message descriptions, see respective chapters.

Table 22. New, Changed, and Deprecated Syslog Messages for Version 9.3(2)

New Syslog Messages

110004, 342001-342008, 607004, 608006, 725016, 802001-802006

Changed Syslog Messages

(Documentation)

210005, 302014, 505005, 609001, 609002, 725001-725010, 725012, 725013, 734004, 750003

Changed Syslog Messages

(Code)

210005, 302014, 302016, 302018, 302021, 302304, 609001, 609002, 725001-725010, 725012, 725013, 734004

Deprecated Syslog Messages

734005

The following table lists the new, changed, and deprecated syslog messages for Version 9.3(1). For complete syslog message descriptions, see respective chapters.

Table 23. New, Changed, and Deprecated Syslog Messages for Version 9.3(1)

New Syslog Messages

103008, 105033, 105041, 302022-302027, 434004, 709008, 725016, 722055, 751025, 751026, 780001-780004

Changed Syslog Messages

(Documentation)

725002

Changed Syslog Messages

(Code)

725002

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 9.2(1). For complete syslog message descriptions, see respective chapters.

Table 24. New, Changed, and Deprecated Syslog Messages for Version 9.2(1)

New Syslog Messages

113041, 113042, 213007, 328002, 336012-336016, 336018, 336019, 434001-434004, 434007, 520001-520005, 520010, 520011, 520013, 520020-520025, 613004-613008, 613011, 613013-613019, 613021-613043 722054, 778001-778007, 779001-779007

Changed Syslog Messages

(Documentation)

201010, 602101, 611101, 611102, 713903, 734004

Changed Syslog Messages

(Code)

611101, 611102, 713903, 734004

Deprecated Syslog Messages

210011, 202011, 321008, 321009

The following table lists the new, changed, and deprecated syslog messages for Version 9.1(7). For complete syslog message descriptions, see respective chapters.

Table 25. New, Changed, and Deprecated Syslog Messages for Version 9.1(7)

New Syslog Messages

202016, 737034, 737035, 737036

Changed Syslog Messages

(Documentation)

None

Changed Syslog Messages

(Code)

None

Deprecated Syslog Messages

337005

The following table lists the new, changed, and deprecated syslog messages for Version 9.1(5). For complete syslog message descriptions, see respective chapters.

Table 26. New, Changed, and Deprecated Syslog Messages for Version 9.1(5)

New Syslog Messages

780001, 780002

Changed Syslog Messages

(Documentation)

113005, 113015, 113016, 113017, 210007, 611102, 720073

Changed Syslog Messages

(Code)

113005, 113015, 113016, 113017, 210007, 611102, 720073

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 9.1(4). For complete syslog message descriptions, see respective chapters.

Table 27. New, Changed, and Deprecated Syslog Messages for Version 9.1(4)

New Syslog Messages

109100-109104, 321008, 321009, 444008, 444009, 716061, 743010, 743011, 747031-747033, 750010, 751024

Changed Syslog Messages

(Documentation)

702307

Changed Syslog Messages

(Code)

713902

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 9.1(3). For complete syslog message descriptions, see respective chapters.

Table 28. New, Changed, and Deprecated Syslog Messages for Version 9.1(3)

New Syslog Messages

None

Changed Syslog Messages

(Documentation)

106100, 715080, 746001-746019, 747021

Changed Syslog Messages

(Code)

747021

Deprecated Syslog Messages

102001

The following table lists the new, changed, and deprecated syslog messages for Version 9.1(2). For complete syslog message descriptions, see respective chapters.

Table 29. New, Changed, and Deprecated Syslog Messages for Version 9.1(2)

New Syslog Messages

109100-109104, 402140-402148, 405003, 711006, 716600-716603, 730003, 730006-730009, 750011, 750012, 751023, 768001-768003, 769001-769004, 771001-771002, 772002-772006, 774001-774002

Changed Syslog Messages

(Documentation)

315011, 713191, 751022

Changed Syslog Messages

(Code)

103005, 315011, 713191, 751022

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 9.1(1). For complete syslog message descriptions, see respective chapters.

Table 30. New, Changed, and Deprecated Syslog Messages for Version 9.1(1)

New Syslog Messages

105050, 341001, 341002, 341004-341008, 341010, 341011, 751022

Changed Syslog Messages

(Documentation)

None

Changed Syslog Messages

(Code)

None

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 9.0(3). For complete syslog message descriptions, see respective chapters.

Table 31. New, Changed, and Deprecated Syslog Messages for Version 9.0(3)

New Syslog Messages

747030

Changed Syslog Messages

(Documentation)

747022

Changed Syslog Messages

(Code)

747022

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 9.0(2). For complete syslog message descriptions, see respective chapters.

Table 32. New, Changed, and Deprecated Syslog Messages for Version 9.0(2)

New Syslog Messages

199020, 199021, 747001-747029

Changed Syslog Messages

(Documentation)

None

Changed Syslog Messages

(Code)

None

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 9.0(1). For complete syslog message descriptions, see respective chapters.

Table 33. New, Changed, and Deprecated Syslog Messages for Version 9.0(1)

New Syslog Messages

109038, 109039, 114023, 302022-302027, 313009, 317007, 317008, 318101-318123, 318125-318128, 325004-325006, 402131, 409101-409123, 409125, 409128, 426101-426104, 429007, 503101, 613101-613104, 751019, 751020, 751021, 776001-776020, 776201-776204, 776251-776254, 776301-776313, 767001, 775001-775007

Changed Syslog Messages

(Documentation)

103004, 103005, 106023, 106100, 106010, 106014, 109014, 113019, 313005, 418001, 424001, 509001, 713900-713906, 722051, 725001-725006, 735026-735029, 737009-737011, 737013, 737014, 737016

Changed Syslog Messages

(Code)

103005, 109014, 106100, 113019, 722051, 725001-725006, 735026-735029, 737009-737011, 737013, 737014, 737016

Deprecated Syslog Messages

302009

The following table lists the new, changed, and deprecated syslog messages for Version 8.7(1). For complete syslog message descriptions, see respective chapters.

Table 34. New, Changed, and Deprecated Syslog Messages for Version 8.7(1)

New Syslog Messages

341001-341003

Changed Syslog Messages

(Documentation)

713900-713906

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 8.4(6). For complete syslog message descriptions, see respective chapters.

Table 35. New, Changed, and Deprecated Syslog Messages for Version 8.4(6)

New Syslog Messages

716600-716603

Changed Syslog Messages

(Documentation)

302014

Changed Syslog Messages

(Code)

None

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 8.4(5). For complete syslog message descriptions, see Chapter 1.

Table 36. New, Changed, and Deprecated Syslog Messages for Version 8.4(5)

New Syslog Messages

None

Changed Syslog Messages

(Documentation)

103004, 103005

Changed Syslog Messages

(Code)

103005

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 8.4.4(1). For complete syslog message descriptions, see respective chapters.

Table 37. New, Changed, and Deprecated Syslog Messages for Version 8.4.4(1)

New Syslog Messages

402140-402148, 429001-429006, 429008, 602303-602305, 752001-752017, 768001-768003, 769001-769004, 771001-771002, 772002-772006, 774001-774002

Changed Syslog Messages

(Documentation)

113019, 315011

Changed Syslog Messages

(Code)

315011

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 8.3(3). For complete syslog message descriptions, see respective chapters.

Table 38. New, Changed, and Deprecated Syslog Messages for Version 8.3(3)

New Syslog Messages

114023, 120012, 313009

Changed Syslog Messages

(Documentation)

722036

Changed Syslog Messages

(Code)

None

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 8.2(5). For complete syslog message descriptions, see respective chapters.

Table 39. New, Changed, and Deprecated Syslog Messages for Version 8.2(5)

New Syslog Messages

103005, 114023, 120012, 313009, 413007, 413008, 447001, 735024-735027

Changed Syslog Messages

(Documentation)

722036

Changed Syslog Messages

(Code)

None

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 8.0(1). For complete syslog message descriptions, see respective chapters.

Table 40. New, Changed, and Deprecated Syslog Messages for Version 8.0(1)

New Syslog Messages

109035

Changed Syslog Messages

(Documentation)

None

Changed Syslog Messages

(Code)

None

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for pre-8.0(1) release. For complete syslog message descriptions, see respective chapters.

Table 41. New, Changed, and Deprecated Syslog Messages for pre-8.0(1) Release

New Syslog Messages

713207, 713275, 713276, 715018, 715031, 715032, 715078, 715079

Changed Syslog Messages

(Documentation)

None

Changed Syslog Messages

(Code)

None

Deprecated Syslog Messages

None

The following table lists the new, changed, and deprecated syslog messages for Version 7.0.7(8). For complete syslog message descriptions, see respective chapters.

Table 42. New, Changed, and Deprecated Syslog Messages for Version 7.0.7(8)

New Syslog Messages

419003

Changed Syslog Messages

(Documentation)

None

Changed Syslog Messages

(Code)

None

Deprecated Syslog Messages

None

About ASA Syslog Messages

This section provides information about the ASA syslog messages; lists the message classes and their ID ranges.

  • The valid range for message IDs is between 100000 and 999999.


    Note
    When a number is skipped in a sequence, the message is no longer in the ASA code.

  • For information about how to configure logging, SNMP, and NetFlow, see the CLI configuration guide.

  • Most of the ISAKMP messages have a common set of prepended objects to help identify the tunnel. These objects precede the descriptive text of a message when available. If the object is not known at the time the message is generated, the specific heading = value combination will not be displayed.

    The objects will be prepended as follows:

    Group = groupname, Username = user, IP = IP_address,...

    Where the Group identifies the tunnel group, the Username is the username from the local database or AAA server, and the IP address is the public IP address of the remote access client or L2L peer.

  • Typically, a traffic session displays the connection numbers/IDs for each flow in the syslog messages. However, for some of the connections, though the connection ID is incremented, the syslog messages does not display the ID. Thus, you may find missing sequence numbers in the connection IDs of the subsequent messages.

    For example, during a TCP traffic flow, the syslog messages display the connection IDs as 201, 202, 203, and 204 for each flow. When an ICMP flow begins, though the connection ID is internally incremented to 205 and 206, the syslog messages does not display the numbers. When another TCP flow follows, its connection numbers are now displayed as 207, 208, and so on, giving an impression of skipping sequence.

The following table lists the message classes and the ranges of message IDs that are associated with each class.

Table 43. Syslog Message Classes and Associated Message ID Numbers

Logging Class

Definition

Syslog Message ID Numbers

auth

User Authentication

109, 113

—

Access Lists

106

—

Application Firewall

415

bridge

Transparent Firewall

110, 220

ca

PKI Certification Authority

717

citrix

Citrix Client

723

—

Clustering

747

—

Card Management

323

config

Command Interface

111, 112, 208, 308

csd

Secure Desktop

724

cts

Cisco TrustSec

776

dap

Dynamic Access Policies

734

eap, eapoudp

EAP or EAPoUDP for Network Admission Control

333, 334

eigrp

EIGRP Routing

336

email

E-mail Proxy

719

—

Environment Monitoring

735

ha

Failover

101, 102, 103, 104, 105, 210, 311, 709

—

Identity-based Firewall

746

ids

Intrusion Detection System

400, 733

—

IKEv2 Toolkit

750, 751, 752

ip

IP Stack

209, 215, 313, 317, 408

ipaa

IP Address Assignment

735

ips

Intrusion Protection System

400, 401, 420

—

IPv6

325

—

Block lists, Allow lists, and Graylists

338

—

Licensing

444

mdm-proxy

MDM Proxy

802

nac

Network Admission Control

731, 732

nacpolicy

NAC Policy

731

nacsettings

NAC Settings to apply NAC Policy

732

—

Network Access Point

713

np

Network Processor

319

—

NP SSL

725

ospf

OSPF Routing

318, 409, 503, 613

—

Password Encryption

742

—

Phone Proxy

337

rip

RIP Routing

107, 312

rm

Resource Manager

321

—

Smart Call Home

120

session

User Session

106, 108, 201, 202, 204, 302, 303, 304, 305, 314, 405, 406, 407, 500, 502, 607, 608, 609, 616, 620, 703, 710

snmp

SNMP

212

—

ScanSafe

775

ssl

SSL Stack

725

svc

SSL VPN Client

722

sys

System

199, 211, 214, 216, 306, 307, 315, 414, 604, 605, 606, 610, 612, 614, 615,701, 711, 741

—

Threat Detection

733

tre

Transactional Rule Engine

780

—

UC-IME

339

tag-switching

Service Tag Switching

779

vm

VLAN Mapping

730

vpdn

PPTP and L2TP Sessions

213, 403, 603

vpn

IKE and IPsec

316, 320, 402, 404, 501, 602, 702, 713, 714, 715

vpnc

VPN Client

611

vpnfo

VPN Failover

720

vpnlb

VPN Load Balancing

718

—

VXLAN

778

webfo

WebVPN Failover

721

webvpn

WebVPN and AnyConnect Client

716

—

NAT and PAT

305

Syslog Message Format

Syslog messages are structured as follows:

[<PRI>] [Timestamp] [Device-ID] : %ASA-Level-Message_number: Message_text

Field descriptions are as follows:

<PRI> Priority value. When the logging EMBLEM is enabled, this value is displayed in the syslog message. Logging EMBLEM is compatible with UDP and not with TCP.
Timestamp Date and time of the event is displayed. When logging of timestamps is enabled, and if the timestamp is configured to be in the RFC 5424 format, all timestamp in syslog messages display the time in UTC, as indicated by the RFC 5424 standard.
Device-ID The device identifier string that was configured while enabling the logging device-id option through the user interface. If enabled, the device ID does not appear in EMBLEM-formatted syslog messages.
ASA

The syslog message facility code for messages that are generated by the ASA. This value is always ASA.

Level

0 through 7. The level reflects the severity of the condition described by the syslog message—the lower the number, the more severe the condition.

Message_number

A unique six-digit number that identifies the syslog message.

Message_text

A text string that describes the condition. This portion of the syslog message sometimes includes IP addresses, port numbers, or usernames.

All syslog messages that are generated by the device are documented in this guide.

Example of a syslog message with logging EMBLEM, logging timestamp rfc5424, and device-id enabled.

<166>2018-06-27T12:17:46Z: %ASA-6-110002: Failed to locate egress interface for protocol from src interface :src IP/src port to dest IP/dest port

Example of a syslog message with logging timestamp rfc5424 and device-id enabled.

2018-06-27T12:17:46Z asa : %ASA-6-110002: Failed to locate egress interface for protocol from src interface :src IP/src port to dest IP/dest port

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