Security Guide vA4(1.0) and A4(2.0), Cisco ACE Application Control Engine Module
Index
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Index

Table Of Contents

A - B - C - D - E - F - G - H - I - L - M - N - O - P - Q - R - S - T - U - W -

Index

A

AAA

accounting configuration, displaying 2-50

accounting log information, displaying 2-50

accounting method, defining default 2-45

authentication configuration, displaying 2-53

groups, displaying 2-47

LDAP server, configuring for 2-33

LDAP server configuration, displaying 2-49

local and remote support 2-3

login authentication method, defining 2-43

overview 2-2

quick start 2-8

RADIUS server, configuring for 2-23

RADIUS server configuration, displaying 2-47

server, adding 2-22

server groups, configuring 2-36

status and statistics 2-46

TACACS+ server, configuring for 2-29

TACACS+ server configuration, displaying 2-48

user accounts, creating 2-21

accounting

configuration, displaying 2-50

default method, defining 2-45

log information, displaying 2-50

RADIUS server accounting settings, configuring 2-15

TACACS+ server accounting settings, configuring 2-11

ACLs

alternate address, ICMP message 1-15

BPDU 1-17

clearing statistics 1-44

comments in extended ACLs 1-16

configuration information, displaying 1-42

dynamic NAT 5-11

EtherType, configuring 1-17

EtherType examples 1-41

expanded 1-4

extended, configuring 1-6

extended examples 1-33

guidelines 1-3

ICMP 1-7

implicit deny 1-4

inbound 1-34

IP extended ACL 1-7

IPs with NAT 1-37

maximum entries 1-4

merged 1-2

object groups1-20to 1-30

order of entries 1-3

outbound 1-34

overview 1-2

quick start 1-5

resequencing entries 1-19

static NAT 5-24, 5-34

statistics, displaying 1-42

types 1-3

application protocol inspection

class map overview 3-6

configuration examples 3-126, 3-128, 3-129

DNS 3-9, 3-102

FTP 3-10, 3-102

HTTP 3-12, 3-103

ICMP 3-15, 3-103

ILS 3-5, 3-16, 3-102, 3-104

Layer 3 and 4 HTTP parameter map 3-109

Layer 3 and 4 quick start 3-29

Layer 3 and 4 traffic policy configuration 3-90

Layer 7 FTP command inspection class map 3-31

Layer 7 FTP command inspection configuration 3-30

Layer 7 FTP command inspection quick start 3-23

Layer 7 HTTP deep packet inspection class map 3-39

Layer 7 HTTP deep packet inspection configuration 3-38

Layer 7 HTTP deep packet inspection policy map 3-63

Layer 7 HTTP deep packet inspection quick start 3-25

limitations 3-3

NAT and PAT support 3-3

overview 3-2

policy map overview 3-6

process flow diagram 3-8

protocol inspection overview 3-2

RTSP 3-18, 3-104

SCCP 3-6, 3-19, 3-70, 3-97, 3-102, 3-104, 3-112

service policy, defining 3-124

service policy, displaying 3-130

SIP 3-6, 3-19, 3-73, 3-97, 3-102, 3-104, 3-116

standards 3-3

statistics 3-130

supported protocols 3-3

authentication

configuration, displaying 2-53

local and remote support 2-3

local database 2-5

login method, defining 2-43

overview 2-7

RADIUS server authentication settings, configuring 2-14

TACACS+ server accounting settings, configuring 2-10

B

bandwidth rate limiting 4-8

BPDU, in ACL 1-17

buffer size

for connection parameter map 4-9

receive or transmit data for each TCP connection 4-10

C

class map

associating with Layer 7 policy map 3-37

associating with policy map 3-67, 3-99

description, entering 3-106, 3-113, 3-118, 4-8

dynamic NAT 5-15

Layer 3 and 4 access list match criteria 3-95

Layer 3 and 4 class map, associating with policy map 4-32

Layer 3 and 4 class map, creating 3-92

Layer 3 and 4 description 3-94

Layer 3 and 4 port range criteria 3-96

Layer 4, creating 4-26

Layer 4 description 4-28

Layer 4 IP address criteria 4-28

Layer 4 port number criteria 4-29

Layer 7 FTP command inspection, configuring 3-31

Layer 7 FTP command inspection description 3-32

Layer 7 FTP request methods 3-33

Layer 7 HTTP deep packet inspection, configuring 3-40

Layer 7 HTTP deep packet inspection description 3-42

overview in application protocol inspection process 3-6

static NAT 5-29, 5-35

configurational examples

application protocol inspection 3-129

FTP 3-128

HTTP 3-126

TCP/IP normalization 4-49

connection parameter map

action for segment overrun 4-12

associating with policy map 4-33

buffer size setting 4-9

configuring for TCP/IP normalization 4-5

creating for TCP/IP, UDP, and ICMP 4-7

embryonic connection timeout 4-15

half-closed connection timeout 4-15

inactive connection timeout 4-17

Nagle's algorithm 4-13

random TCP sequence numbers 4-13

reserved bit handling 4-14

segment size setting 4-10

slow start algorithm 4-20

TCP options, handling 4-21

TCP SYN retries, limiting 4-12

TCP SYN segments with data, handling 4-21

type of service 4-26

urgent pointer policy 4-25

connections

clearing 4-67

embryonic, handling timeout of 4-15

half-closed, handling timeout of 4-15

inactive, handling timeout of 4-17

rate limiting 4-8

statistics, clearing 4-67

content type verification

HTTP message 3-66

D

DDoS 4-37

dead-time

RADIUS server group setting 2-39

RADIUS server setting 2-27

TACACS+ server group setting 2-39

TACACS+ server setting 2-32

denial of service. See DoS

destination NAT 5-2, 5-6, 5-7, 5-29, 5-32, 5-39, 5-50

distributed denial of service. See DDoS

DNS 3-102

application protocol inspection, configuring 3-102

application protocol support 3-3

configuration example 3-129

inspection overview 3-9

Don't Fragment bit, handling 4-40

DoS protection, SYN cookie 4-37

dynamic NAT

See NAT

E

embryonic connection, handling timeout of 4-15

EtherType ACL

configuring 1-17

examples 1-41

extended ACL

comments in 1-16

configuring 1-6

examples 1-33

F

fixups

See application protocol inspection

fragment reassembly parameters

See IP fragment reassembly parameters

FTP

application protocol support 3-3, 3-4

associating class map with policy map 3-37

class map 3-31

configuration examples 3-128

inline match commands in policy map 3-35

inspection overview 3-10

Layer 3 and 4 FTP application protocol inspection, configuring 3-102

Layer 7 FTP command inspection, configuring 3-30

passive with source NAT 5-16

policy actions 3-37

policy map 3-34

request methods, defining for command inspection 3-33

strict 3-11, 3-102

G

global addresses, guidelines for NAT 5-7

H

header value string expressions 3-51

HTTP

application protocol support 3-4

associating class map with policy map 3-67

class map 3-39

configuration examples 3-126

content length, defining 3-43

content match criteria, defining 3-42

content type verification match criteria, defining 3-66

header for inspection 3-48

header value string expressions 3-51

HTTP/1/1 header fields, supported 3-49

inline match commands in policy map 3-65

inspection overview 3-12

internal compliance checks 3-67

Layer 3 and 4 HTTP application protocol inspection, configuring 3-103

Layer 7 HTTP deep packet inspection, configuring 3-38

Layer 7 HTTP deep packet inspection policy map 3-63

maximum header length for inspection 3-52

MIME type for inspection 3-53

parameter map 3-109

policy actions 3-68

policy map 3-63

request method for inspection 3-57

restricted category, defining (port misuse) 3-56

statistics from inspection 3-130

strict HTTP match criteria, defining 3-67

transfer encoding type for inspection 3-59

URL for inspection 3-60

URL length for inspection 3-62

HTTP/1/1 header fields, supported 3-49

I

ICMP

ACL 1-7

application protocol inspection, configuring 3-103

application protocol support 3-4, 3-5

conversion-error, ICMP message 1-15

echo, ICMP message 1-15

echo reply, ICMP message 1-14

information reply, ICMP message 1-15

information request, ICMP message 1-15

inspection overview 3-15

mask reply, ICMP message 1-15

mask request, ICMP message 1-15

mobile redirect, ICMP message 1-15

NAT of ICMP error messages 3-104

parameter-problem, ICMP message 1-15

redirect, ICMP message 1-14, 1-15

router-advertisement, ICMP message 1-15

router-solicitation, ICMP message 1-15

security, disabling 4-36

source quench, ICMP message 1-14

time-exceeded, ICMP message 1-15

timestamp-reply, ICMP message 1-15

timestamp-request, ICMP message 1-15

traceroute, ICMP message 1-15

types 1-14

unreachable, ICMP message 1-14

ILS inspection 3-5, 3-16, 3-102, 3-104

implicit PAT 5-2

inbound ACLs 1-34

inline match commands

content type verification for HTTP inspection 3-66

in Layer 7 FTP command inspection policy map 3-35

in Layer 7 HTTP deep packet inspection policy map 3-65

strict HTTP for HTTP inspection 3-67

inspection engines

See application protocol inspection

Internet Locator Service. See ILS

IP

ACL 1-7

address pool, for dynamic NAT 5-12, 5-24

for ACL with NAT 1-37

normalization, overview 4-3

options, handling 4-41

IP fragment reassembly parameters

configurational example 4-49

configuring 4-43

maximum fragment size setting 4-46

maximum fragments setting 4-46

MTU setting 4-45

quick start 4-44

reassembly timeout setting 4-47

L

Layer 3 and 4 application protocol inspection, configuring

associating class map with policy map 3-99

class map 3-92

policy actions 3-101

policy map 3-98

LDAP server

ACE configuration 2-33

configuration, displaying 2-49

configuration overview 2-18

directory server overview 2-6

parameters, setting 2-34

port, setting 2-35

search filter configuration 2-42

server group, creating 2-37

timeout, setting 2-36

user profile attribute type configuration 2-40

virtualization attributes, defining 2-12, 2-16, 2-19

local database authentication 2-5

login authentication method, defining 2-43

M

merged ACLs 1-2

MIME type, supported for HTTP inspection 3-53

MPLS, in ACL 1-17, 1-19

MTU

in IP fragment reassembly configuration 4-45

N

Nagle's algorithm 4-13

NAT

ACL configuration, dynamic 5-11

ACL configuration, static 5-24, 5-34

application protocol inspection support 3-3

as policy map action, dynamic 5-17

as policy map action, static 5-28, 5-37

class map configuration, dynamic 5-15

class map configuration, static 5-29, 5-35

creating over 8 K static configurations 5-40

destination 5-2, 5-6, 5-7, 5-29, 5-32, 5-39, 5-50

dynamic NAT, overview 5-3

dynamic NAT and PAT, configuring 5-9

dynamic PAT, overview 5-4

global address guidelines 5-7

global IP address pool 5-12, 5-24

idle timeout, configuring 5-8

IPs in ACLs 1-37

maximum number of statements 5-7

overview 5-1

policy map configuration, dynamic 5-16

policy map configuration, static 5-30, 5-36

quick start, dynamic NAT and PAT 5-9

quick start, static NAT 5-20, 5-32

service policy, global dynamic 5-19

service policy, local dynamic 5-18

service policy, static 5-31, 5-39

source 5-2, 5-3, 5-4, 5-9

static NAT, overview 5-6

static NAT and port redirection, configuring 5-32

static port redirection 5-7

network address translation

See NAT

normalization parameters

configuring 4-34

Don't Fragment bit, handling 4-40

ICMP security, disabling 4-36

IP options, handling 4-41

normalization send-reset, enabling 4-36

packet TTL setting 4-42

TCP normalization, disabling 4-34

unicast reverse-path forwarding, configuring 4-43

O

object groups

expanded 1-4

network 1-9

overview 1-20

service 1-14

order of ACL entries 1-3

outbound ACLs 1-34

P

packet TTL setting 4-42

parameter map

associating with Layer 3 and 4 policy map 3-108, 3-111, 3-115, 3-124

case sensitivity, disabling 3-109

configuring for Layer 3 and 4 HTTP inspection 3-109

maximum content bytes setting 3-110

maximum header bytes setting 3-110

passive FTP with source NAT 5-16

PAT

configuring 5-9

implicit 5-2

overview 5-4

policy map

actions, defining 3-37, 3-68, 3-101

associating with connection parameter map 4-33

dynamic NAT 5-16

dynamic NAT as policy map action 5-17

Layer 3 and 4, associating with class map 3-99

Layer 3 and 4, associating with parameter map 3-108, 3-111, 3-115, 3-124

Layer 3 and 4, associating with service policy 4-33

Layer 3 and 4, configuring HTTP parameter map 3-109

Layer 3 and 4, creating 3-98, 4-31

Layer 3 and 4, defining 3-98

Layer 3 and 4, description 3-99

Layer 3 and 4 policy map, associating with class map 4-32

Layer 7 FTP command inspection, adding description 3-35

Layer 7 FTP command inspection, associating with class map 3-37

Layer 7 FTP command inspection, creating 3-34

Layer 7 FTP command inspection, defining 3-34

Layer 7 FTP command inspection, inline match commands 3-35

Layer 7 HTTP deep packet inspection, adding description 3-64

Layer 7 HTTP deep packet inspection, associating with class map 3-67

Layer 7 HTTP deep packet inspection, creating 3-63

Layer 7 HTTP deep packet inspection, inline match commands 3-65

overview in application protocol inspection process 3-6

static NAT 5-30, 5-36

static NAT as policy map action 5-28, 5-37

port

for LDAP server 2-35

number or range for Layer 3 and 4 application protocol inspection 3-96

port redirection, configuring 5-32

port redirection

configuring 5-32

overview 5-7

preshared key

RADIUS, setting for 2-26

TACACS+, setting for 2-31

Q

quick start

AAA configuration 2-8

ACL configuration 1-5

dynamic NAT and PAT configuration 5-9

IP fragment reassembly configuration 4-44

Layer 3 and 4 application protocol inspection 3-29

Layer 7 FTP command inspection 3-23

Layer 7 HTTP deep packet inspection 3-25

static NAT configuration 5-20, 5-32

TCP/IP normalization 4-3

R

RADIUS server

ACE configuration 2-23

adding 2-22

authentication settings, configuring 2-14

configuration, displaying 2-47

dead-time setting 2-27

global preshared key setting 2-26

NAS-IP-Address attribute setting 2-26

number of retransmissions, setting 2-28

parameters, setting 2-23

server accounting settings, configuring 2-15

server group, creating 2-37

server group dead-time setting 2-39

server overview 2-5

timeout setting 2-29

rate limiting

bandwidth 4-8

connection 4-8

remarks in extended ACLs 1-16

reordering ACL entries 1-19

request methods

FTP command inspection, defining for 3-33

HTTP inspection, defining for 3-57

resequencing ACL entries 1-19

reserved bits, handling in connection parameter map 4-14

restricted category, defining for HTTP inspection (port misuse) 3-56

reverse-path forwarding, configuring 4-43

RTSP

application protocol inspection, configuring 3-104

application protocol support 3-6

inspection overview 3-18

restrictions 3-18

rules, maximum in ACL 1-4

S

SCCP

inspection 3-6, 3-19, 3-70, 3-97, 3-102, 3-104, 3-112

segment size

action for overrun 4-12

for connection parameter map 4-10

server groups

configuring 2-36

creating 2-37

LDAP 2-37

RADIUS 2-37

TACACS+ 2-37

service policy

applying to VLAN interfaces 3-124

associating with Layer 3 and 4 policy map 4-33

configuration information 3-131

dynamic NAT, global 5-19

dynamic NAT, local 5-18

static NAT, local 5-31, 5-39

Session Initiation Protocol. See SIP

SIP

inspection 3-6, 3-19, 3-73, 3-97, 3-102, 3-104, 3-116

inspection, enabling logging of packets 3-123

Skinny Client Control Protocol. See SCCP

slow start algorithm, enabling in connection parameter map 4-20

source NAT 5-2, 5-3, 5-4, 5-9

static NAT

See NAT

statistics

AAA 2-46

ACL, clearing 1-44

ACL, displaying 1-42

connection, clearing 4-67

HTTP inspection 3-130

IP, clearing 4-68

IP fragmentation and reassembly, clearing 4-69

IP fragmentation and reassembly, displaying 4-61

IP traffic 4-58

service policy 4-64

TCP, clearing 4-68

TCP, displaying 4-62

TCP/IP and UDP connections 4-55

TCP/IP connections and IP reassembly, clearing 4-68

TCP/IP connections and IP reassembly, displaying 4-50

UDP, clearing 4-69

UDP, displaying 4-63

switch mode, configuring 4-47

SYN cookie

configurational and operational considerations 4-39

configuring on an interface 4-40

displaying statistics 4-65

overview 4-37

SYN flood attack 4-37

T

TACACS+ server

accounting settings, configuring 2-11

ACE configuration 2-29

adding 2-22

Cisco Secure Access Control Server (ACS) 2-10, 2-11

configuration, displaying 2-48

dead-time setting 2-32

global preshared key setting 2-31

parameters, setting 2-30

server authentication settings, configuring 2-10

server group, creating 2-37

server group dead-time setting 2-39

server overview 2-5

timeout setting 2-33

TCP

connection, receive or transmit buffer size 4-10

normalization, disabling 4-34

normalization, overview 4-2

normalization send-reset, enabling 4-36

options, handling in connection parameter map 4-21

port numbers and key words 1-10

sequence numbers, randomizing 4-13

slow start algorithm, enabling in connection parameter map 4-20

SYN retries, limiting in connection parameter map 4-12

SYN segments with data, handling in connection parameter map 4-21

WAN optimization 4-17

TCP/IP and UDP configurations, displaying 4-51

TCP/IP normalization

clearing connections 4-67

configuration example 4-49

connection parameter map, configuring 4-5

IP fragment reassembly parameters, configuring 4-43

Layer 3 and 4 policy map, configuring 4-31

Layer 4 class map, configuring 4-26

normalization parameters, configuring 4-34

overview 4-2

quick start 4-3

statistics, clearing 4-68, 4-69

statistics, displaying 4-50

statistics, IP fragmentation and reassembly 4-61

statistics, IP traffic 4-58

statistics, service policy 4-64

statistics, TCP 4-62

statistics, TCP/IP connections 4-55

statistics, UDP 4-63

TCP/IP and UDP configurations, displaying 4-51

traffic policy, configuring 4-26

traffic class

See class map

traffic policies

TCP/IP normalization 4-26

transfer encoding, defining for HTTP inspection 3-59

TTL setting 4-42

type of service, setting in connection parameter map 4-26

U

UDP

port numbers and key words 1-12

UDP and TCP/IP configurations, displaying 4-51

unicast reverse-path forwarding, configuring 4-43

urgent pointer policy, setting in connection parameter map 4-25

URL

defining for HTTP deep packet inspection 3-60

length, defining for HTTP deep packet inspection 3-62

regular expressions 3-61

URL request logging 3-103

W

WAN optimization 4-17