13-Security Command Reference

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01-ACL commands
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01-ACL commands 223.61 KB

ACL commands

acl

Use acl to create an ACL and enter its view, or enter the view of an existing ACL.

Use undo acl to delete the specified or all ACLs.

Syntax

acl [ ipv6 ] { name acl-name | number acl-number [ name acl-name ] [ match-order { auto | config } ] }

undo acl [ ipv6 ] { all | name acl-name | number acl-number }

acl [ ipv6 ] { advanced | basic } { acl-number | name acl-name } [ match-order { auto | config } ]

acl mac { acl-number | name acl-name } [ match-order { auto | config } ]

undo acl [ ipv6 ] { all | { advanced | basic } { acl-number | name acl-name } }

undo acl mac { all | acl-number | name acl-name }

 

acl wlan client { acl-number | name acl-name }

undo acl wlan client { acl-number | all | name acl-name }

Default

No ACLs exist.

Views

System view

Predefined user roles

network-admin

Parameters

ipv6: Specifies the IPv6 ACL type.

basic: Specifies the basic ACL type.

advanced: Specifies the advanced ACL type.

mac: Specifies the Layer 2 ACL type.

wlan client: Specifies the WLAN client ACL type.

acl-number: Assigns a number to the ACL. The following are available value ranges:

·     100 to 199 for WLAN client ACL.

·     2000 to 2999 for basic ACLs.

·     3000 to 3999 for advanced ACLs.

·     4000 to 4999 for Layer 2 ACLs.

name acl-name: Assigns a name to the ACL. The acl-name argument is a case-insensitive string of 1 to 63 characters. It must start with an English letter and to avoid confusion, it cannot be all.

match-order: Specifies the order in which ACL rules are compared against packets.

auto: Compares ACL rules in depth-first order.

config: Compares ACL rules in ascending order of rule ID. The rule with a smaller ID has a higher priority. If you do not specify a match order, the config order applies by default. The match order for the WLAN client ACL can only be config.

all: Specifies all ACLs of the specified type.

Usage guidelines

To specify the IPv4 ACL type, do not specify the ipv6, mac, or wlan client keyword.

If you create a numbered non-WLAN ACL, you can enter the view of the ACL by using the following commands:

·     acl [ ipv6 ] number acl-number

·     acl { [ ipv6 ] { advanced | basic } | mac } acl-number

If you create a non-WLAN ACL by specifying both a number and a name, you can enter the view of the ACL by using the following commands:

·     acl [ ipv6 ] number acl-number (only for basic and advanced ACLs)

·     acl [ ipv6 ] number acl-number [ name acl-name ]

·     acl { [ ipv6 ] { advanced | basic } | mac } name acl-name

If you create a named non-WLAN ACL by using the acl { [ ipv6 ] { advanced | basic } | mac } name acl-name command, you can enter the view of the ACL by using the following commands:

·     acl [ ipv6 ] name acl-name

·     acl { [ ipv6 ] { advanced | basic } | mac } name acl-name

If you create a numbered WLAN ACL, you can enter the view of the ACL by using only the acl wlan client acl-number command.

If you create a named WLAN ACL, you can enter the view of the ACL by using only the acl wlan client name acl-name command.

You can change the match order only for ACLs that do not contain any rules.

Matching packets are forwarded through slow forwarding if an ACL rule contains match criteria or has functions enabled in addition to the following match criteria and functions:

·     Source and destination IP addresses.

·     Source and destination ports.

·     Transport layer protocol.

·     ICMP or ICMPv6 message type, message code, and message name.

·     Logging.

·     Time range.

Slow forwarding requires packets to be sent to the control plane for forwarding entry calculation, which affects the device forwarding performance.

Examples

# Create IPv4 basic ACL 2000 and enter its view.

<Sysname> system-view

[Sysname] acl basic 2000

[Sysname-acl-ipv4-basic-2000]

# Create IPv4 basic ACL flow and enter its view.

<Sysname> system-view

[Sysname] acl basic name flow

[Sysname-acl-ipv4-basic-flow]

# Create IPv4 advanced ACL 3000 and enter its view.

<Sysname> system-view

[Sysname] acl advanced 3000

[Sysname-acl-ipv4-adv-3000]

# Create IPv6 basic ACL 2000 and enter its view.

<Sysname> system-view

[Sysname] acl ipv6 basic 2000

[Sysname-acl-ipv6-basic-2000]

# Create IPv6 basic ACL flow and enter its view.

<Sysname> system-view

[Sysname] acl ipv6 basic name flow

[Sysname-acl-ipv6-basic-flow]

# Create IPv6 advanced ACL abc and enter its view.

<Sysname> system-view

[Sysname] acl ipv6 advanced name abc

[Sysname-acl-ipv6-adv-abc]

# Create Layer 2 ACL 4000 and enter its view.

<Sysname> system-view

[Sysname] acl mac 4000

[Sysname-acl-mac-4000]

# Create Layer 2 ACL flow and enter its view.

<Sysname> system-view

[Sysname] acl mac name flow

[Sysname-acl-mac-flow]

# Create WLAN client ACL 100 and enter its view.

<Sysname> system-view

[Sysname] acl wlan client 100

[Sysname-acl-client-100]

# Create WLAN client ACL flow and enter its view.

<Sysname> system-view

[Sysname] acl wlan client name flow

[Sysname-acl-client-flow]

Related commands

display acl

acl copy

Use acl copy to create an ACL by copying an ACL that already exists.

Syntax

acl [ ipv6 | mac ] copy { source-acl-number | name source-acl-name } to { dest-acl-number | name dest-acl-name }

Views

System view

Predefined user roles

network-admin

Parameters

ipv6: Specifies the IPv6 ACL type.

mac: Specifies the Layer 2 ACL type.

source-acl-number: Specifies an existing source ACL by its number. The following are available value ranges:

·     100 to 199 for WLAN client ACLs.

·     2000 to 2999 for basic ACLs.

·     3000 to 3999 for advanced ACLs.

·     4000 to 4999 for Layer 2 ACLs.

name source-acl-name: Specifies an existing source ACL by its name. The source-acl-name argument is a case-insensitive string of 1 to 63 characters.

dest-acl-number: Assigns a unique number to the new ACL. The following are available value ranges:

·     100 to 199 for WLAN client ACLs.

·     2000 to 2999 for basic ACLs.

·     3000 to 3999 for advanced ACLs.

·     4000 to 4999 for Layer 2 ACLs.

name dest-acl-name: Assigns a unique name to the new ACL. The dest-acl-name argument is a case-insensitive string of 1 to 63 characters. It must start with an English letter and to avoid confusion, it cannot be all.

Usage guidelines

The new ACL and the source ACL must be the same type.

The new ACL has the same properties and content as the source ACL, but uses a different number or name from the source ACL.

The new ACL created by copying an ACL takes effect only on the WLAN clients that are associated with the AC after the ACL creation.

Examples

# Create IPv4 basic ACL 2002 by copying IPv4 basic ACL 2001.

<Sysname> system-view

[Sysname] acl copy 2001 to 2002

# Create IPv4 basic ACL paste by copying IPv4 basic ACL test.

<Sysname> system-view

[Sysname] acl copy name test to name paste

acl logging interval

Use acl logging interval to enable logging for packet filtering and set the interval.

Use undo acl logging interval to restore the default.

Syntax

acl logging interval interval

undo acl logging interval

Default

The interval is 0. The device does not generate log entries for packet filtering.

Views

System view

Predefined user roles

network-admin

Parameters

interval: Specifies the interval at which log entries are generated and output. It must be a multiple of 5, in the range of 0 to 1440 minutes. To disable the logging, set the value to 0.

Usage guidelines

The logging feature is available for IPv4 or IPv6 ACL rules that have the logging keyword.

You can configure the ACL module to generate log entries for packet filtering and output them to the information center at the output interval. The log entry records the number of matching packets and the matched ACL rules. When the first packet of a flow matches an ACL rule, the output interval starts, and the device immediately outputs a log entry for this packet. When the output interval ends, the device outputs a log entry for subsequent matching packets of the flow.

For more information about the information center, see System Management Configuration Guide.

Examples

# Configure the device to generate and output packet filtering log entries every 10 minutes.

<Sysname> system-view

[Sysname] acl logging interval 10

Related commands

rule (IPv4 advanced ACL view)

rule (IPv4 basic ACL view)

rule (IPv6 advanced ACL view)

rule (IPv6 basic ACL view)

acl trap interval

Use acl trap interval to enable SNMP notifications for packet filtering and set the interval.

Use undo acl interval to restore the default.

Syntax

acl trap interval interval

undo acl trap interval

Default

The interval is 0. The device does not generate SNMP notifications for packet filtering.

Views

System view

Predefined user roles

network-admin

Parameters

interval: Specifies the interval at which SNMP notifications are generated and output. It must be a multiple of 5, in the range of 0 to 1440 minutes. To disable SNMP notifications, set the value to 0.

Usage guidelines

The SNMP notifications feature is available for IPv4 or IPv6 ACL rules that have the logging keyword.

You can configure the ACL module to generate SNMP notifications for packet filtering and output them to the SNMP module at the output interval. The notification records the number of matching packets and the matched ACL rules. When the first packet of a flow matches an ACL rule, the output interval starts, and the device immediately outputs a notification for this packet. When the output interval ends, the device outputs a notification for subsequent matching packets of the flow. For more information about SNMP, see Network Management and Monitoring Configuration Guide.

Examples

# Configure the device to generate and output packet filtering SNMP notifications every 10 minutes.

<Sysname> system-view

[Sysname] acl trap interval 10

Related commands

rule (IPv4 advanced ACL view)

rule (IPv4 basic ACL view)

rule (IPv6 advanced ACL view)

rule (IPv6 basic ACL view)

description

Use description to configure a description for an ACL.

Use undo description to delete an ACL description.

Syntax

description text

undo description

Default

An ACL does not have a description.

Views

IPv4 basic/advanced ACL view

IPv6 basic/advanced ACL view

Layer 2 ACL view

WLAN client ACL view

Predefined user roles

network-admin

Parameters

text: Specifies a description, a case-sensitive string of 1 to 127 characters.

Examples

# Configure a description for IPv4 basic ACL 2000.

<Sysname> system-view

[Sysname] acl basic 2000

[Sysname-acl-ipv4-basic-2000] description This is an IPv4 basic ACL.

Related commands

display acl

display acl

Use display acl to display ACL configuration and match statistics.

Syntax

display acl [ ipv6 | mac | wlan ] { acl-number | all | name acl-name }

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

ipv6: Specifies the IPv6 ACL type.

mac: Specifies the Layer 2 ACL type.

wlan: Specifies the WLAN client ACL type.

acl-number: Specifies an ACL by its number. The following are available value ranges:

·     100 to 199 for WLAN client ACLs.

·     2000 to 2999 for basic ACLs.

·     3000 to 3999 for advanced ACLs.

·     4000 to 4999 for Layer 2 ACLs.

all: Specifies all ACLs of the specified type.

name acl-name: Specifies an ACL by its name. The acl-name argument is a case-insensitive string of 1 to 63 characters.

Usage guidelines

This command displays ACL rules in config or auto order, whichever is configured.

Examples

# Display configuration and match statistics for all IPv4 ACLs.

<Sysname> display acl all

Basic IPv4 ACL 2001, 2 rules, match-order is auto,

This is an IPv4 basic ACL.

ACL's step is 5

 rule 5 permit source 1.1.1.1 0 (5 times matched)

 rule 5 comment This rule is used on GigabitEthernet 1/0/1.

Advanced IPv4 ACL 3001, 1 rule,

ACL's step is 5

 rule 0 permit ip source 1.1.1.0 0.0.0.255 destination 3.3.3.0 0.0.0.255 (Dynamic)

Table 1 Command output

Field

Description

Basic IPv4 ACL 2001

Type and number of the ACL.

2 rules

The ACL contains two rules.

match-order is auto

The match order for the ACL is auto, which sorts ACL rules in depth-first order. This field is not displayed when the match order is config.

This is an IPv4 basic ACL.

Description of the ACL.

ACL's step is 5

The rule numbering step is 5.

rule 5 permit source 1.1.1.1 0

Content of rule 5. The rule permits packets sourced from the IP address 1.1.1.1.

5 times matched

The rule has been matched five times. Only matches performed in software are counted.

This field is not displayed when no packets matched the rule.

rule 5 comment This rule is used on GigabitEthernet1/0/1.

Comment of rule 5.

Dynamic

A dynamic rule is added dynamically by an application module.

display packet-filter

Use display packet-filter to display ACL application information for packet filtering.

Syntax

display packet-filter interface [ interface-type interface-number ] [ inbound | outbound ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface [ interface-type interface-number ]: Specifies an interface by its type and number. If you do not specify an interface, this command displays ACL application information for packet filtering on all interfaces except VA interfaces. For information about VA interfaces, see PPP in Network Connectivity Configuration Guide.

inbound: Specifies the inbound direction.

outbound: Specifies the outbound direction.

Usage guidelines

If neither the inbound keyword nor the outbound keyword is specified, this command displays ACL application information for packet filtering in both directions.

Examples

# Display ACL application information for inbound packet filtering on interface GigabitEthernet 1/0/1.

<Sysname> display packet-filter interface gigabitethernet 1/0/1 inbound

Interface: GigabitEthernet1/0/1

 Inbound policy:

  IPv4 ACL 2001

  IPv6 ACL 2002 (Failed)

  MAC ACL 4003 (Failed)

  IPv4 default action: Deny

  IPv6 default action: Deny

  MAC default action: Deny

 

Field

Description

Interface

Interface to which the ACL applies.

Inbound policy

ACL used for filtering incoming traffic.

Outbound policy

ACL used for filtering outgoing traffic.

IPv4 ACL 2001

IPv4 basic ACL 2001 has been successfully applied.

IPv6 ACL 2002 (Failed)

The device has failed to apply IPv6 basic ACL 2002.

IPv4 default action

Packet filter default action for packets that do not match any IPv4 ACLs:

·     Deny—The default action deny has been successfully applied for packet filtering.

·     Deny (Failed)—The device has failed to apply the default action deny for packet filtering. The action permit still functions.

·     Permit—The default action permit has been successfully applied for packet filtering.

IPv6 default action

Packet filter default action for packets that do not match any IPv6 ACLs:

·     Deny—The default action deny has been successfully applied for packet filtering.

·     Deny (Failed)—The device has failed to apply the default action deny for packet filtering. The action permit still functions.

·     Permit—The default action permit has been successfully applied for packet filtering.

MAC default action

Packet filter default action for packets that do not match any Layer 2 ACLs:

·     Deny—The default action deny has been successfully applied for packet filtering.

·     Deny (Failed)—The device has failed to apply the default action deny for packet filtering. The action permit still functions.

·     Permit—The default action permit has been successfully applied for packet filtering.

display packet-filter statistics

Use display packet-filter statistics to display packet filtering statistics.

Syntax

display packet-filter statistics interface interface-type interface-number { inbound | outbound } [ default | [ ipv6 | mac ] { acl-number | name acl-name } ] [ brief ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface interface-type interface-number: Specifies an interface by its type and number.

inbound: Specifies the inbound direction.

outbound: Specifies the outbound direction.

default: Displays the default action statistics for packet filtering.

ipv6: Specifies the IPv6 ACL type.

mac: Specifies the Layer 2 ACL type.

acl-number: Specifies an ACL by its number. The following are available value ranges:

·     2000 to 2999 for basic ACLs.

·     3000 to 3999 for advanced ACLs.

·     4000 to 4999 for Layer 2 ACLs.

name acl-name: Specifies an ACL by its name. The acl-name argument is a case-insensitive string of 1 to 63 characters.

brief: Displays brief statistics.

Usage guidelines

If you do not specify any parameters, this command displays packet filtering statistics for all ACLs.

Examples

# Display packet filtering statistics for all ACLs on incoming packets of GigabitEthernet 1/0/1.

<Sysname> display packet-filter statistics interface gigabitethernet 1/0/1 inbound

Interface: GigabitEthernet1/0/1

 Inbound policy:

  IPv4 ACL 2001

   From 2011-06-04 10:25:21 to 2011-06-04 10:35:57

   rule 0 permit source 2.2.2.2 0 counting (2 packets, 256 bytes)

   rule 5 permit source 1.1.1.1 0 counting (Failed)

   Totally 2 packets 256 bytes permitted, 0 packets 0 bytes denied

   Totally 100% permitted, 0% denied

 

  IPv6 ACL 2000

 

  MAC ACL 4000

   rule 0 permit

 

  IPv4 default action: Deny

   From 2011-06-04 10:25:21 to 2011-06-04 10:35:57

   Totally 7 packets

 

  IPv6 default action: Deny

   From 2011-06-04 10:25:41 to 2011-06-04 10:35:57

   Totally 0 packets

  MAC default action: Deny

   From 2011-06-04 10:25:34 to 2011-06-04 10:35:57

   Totally 0 packets

 

Field

Description

Interface

Interface to which the ACL applies.

Inbound policy

ACL used for filtering incoming traffic.

Outbound policy

ACL used for filtering outgoing traffic.

IPv4 ACL 2001

IPv4 basic ACL 2001 has been successfully applied.

IPv4 ACL 2002 (Failed)

The device has failed to apply IPv4 basic ACL 2002.

2 packets

Two packets matched the rule.

This field is not displayed when no packets matched the rule.

rule 5 permit source 1.1.1.1 0 (Failed)

The device has failed to apply rule 5.

Totally 2 packets permitted, 0 packets denied

Number of packets permitted and denied by the ACL.

Totally 100% permitted, 0% denied

Ratios of permitted and denied packets to all packets.

IPv4 default action

Packet filter default action for packets that do not match any IPv4 ACLs:

·     Deny—The default action deny has been successfully applied for packet filtering.

·     Deny (Failed)—The device has failed to apply the default action deny for packet filtering. The action permit still functions.

·     Permit—The default action permit has been successfully applied for packet filtering.

IPv6 default action

Packet filter default action for packets that do not match any IPv6 ACLs:

·     Deny—The default action deny has been successfully applied for packet filtering.

·     Deny (Failed)—The device has failed to apply the default action deny for packet filtering. The action permit still functions.

·     Permit—The default action permit has been successfully applied for packet filtering.

MAC default action

Packet filter default action for packets that do not match any Layer 2 ACLs:

·     Deny—The default action deny has been successfully applied for packet filtering.

·     Deny (Failed)—The device has failed to apply the default action deny for packet filtering. The action permit still functions.

·     Permit—The default action permit has been successfully applied for packet filtering.

Related commands

reset packet-filter statistics

display packet-filter statistics sum

Use display packet-filter statistics sum to display accumulated packet filtering statistics for an ACL.

Syntax

display packet-filter statistics sum { inbound | outbound } [ ipv6 | mac ] { acl-number | name acl-name } [ brief ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

inbound: Specifies the inbound direction.

outbound: Specifies the outbound direction.

ipv6: Specifies the IPv6 ACL type.

mac: Specifies the Layer 2 ACL type.

acl-number: Specifies an ACL by its number. The following are available value ranges:

·     2000 to 2999 for basic ACLs.

·     3000 to 3999 for advanced ACLs.

·     4000 to 4999 for Layer 2 ACLs.

name acl-name: Specifies an ACL by its name. The acl-name argument is a case-insensitive string of 1 to 63 characters.

brief: Displays brief statistics.

Examples

# Display accumulated packet filtering statistics for IPv4 basic ACL 2001 on incoming packets.

<Sysname> display packet-filter statistics sum inbound 2001

Sum:

 Inbound policy:

  IPv4 ACL 2001

   rule 0 permit source 2.2.2.2 0 counting (2 packets, 256 bytes)

   rule 5 permit source 1.1.1.1 0

   Totally 2 packets 256 bytes permitted, 0 packets 0 bytes denied

   Totally 100% permitted, 0% denied

# Display brief accumulated packet filtering statistics for IPv4 basic ACL 2000 on incoming packets.

<Sysname> display packet-filter statistics sum inbound 2000 brief

Sum:

 Inbound policy:

  IPv4 ACL 2000

   Totally 2 packets 256 bytes permitted, 0 packets 0 bytes denied

   Totally 100% permitted, 0% denied

Table 2 Command output

Field

Description

Sum

Accumulated packet filtering statistics.

Inbound policy

Accumulated packet filtering statistics in the inbound direction.

Outbound policy

Accumulated packet filtering statistics in the outbound direction.

IPv4 ACL 2001

Accumulated packet filtering statistics of IPv4 basic ACL 2001.

2 packets, 256 bytes

Number of packets matched the rule and the size of the matching packets. In this example, 2 packets (256 bytes) matched the rule.

This field is not displayed when no packets matched the rule.

Totally 2 packets 256 bytes permitted, 0 packets 0 bytes denied

Number of packets and number of bytes permitted and denied by the ACL.

Totally 100% permitted, 0% denied

Ratios of permitted and denied packets to all packets.

Related commands

reset packet-filter statistics

display packet-filter verbose

Use display packet-filter verbose to display ACL application details for packet filtering.

Syntax

display packet-filter verbose interface interface-type interface-number { inbound | outbound } [ [ ipv6 | mac ] { acl-number | name acl-name } ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface interface-type interface-number: Specifies an interface by its type and number.The slot slot-number option is not available for an Ethernet interface.

inbound: Specifies the inbound direction.

outbound: Specifies the outbound direction.

ipv6: Specifies the IPv6 ACL type.

mac: Specifies the Layer 2 ACL type.

acl-number: Specifies an ACL by its number. The following are available value ranges:

·     2000 to 2999 for basic ACLs.

·     3000 to 3999 for advanced ACLs.

·     4000 to 4999 for Layer 2 ACLs.

name acl-name: Specifies an ACL by its name. The acl-name argument is a case-insensitive string of 1 to 63 characters.

Usage guidelines

If acl-number, name acl-name, ipv6, or mac is not specified, this command displays application details of all ACLs for packet filtering.

Examples

# Display application details of all ACLs for inbound packet filtering on GigabitEthernet 1/0/1.

<Sysname> display packet-filter verbose interface gigabitethernet 1/0/1 inbound

Interface: GigabitEthernet1/0/1

 Inbound policy:

  IPv4 ACL 2001

   rule 0 permit

   rule 5 permit source 1.1.1.1 0 (Failed)

 

  IPv6 ACL 2000

 

   rule 0 permit

 

  MAC ACL 4000

 

  IPv4 default action: Deny

 

  IPv6 default action: Deny

 

  MAC default action: Deny

 

Field

Description

Interface

Interface to which the ACL applies.

Inbound policy

ACL used for filtering incoming traffic.

Outbound policy

ACL used for filtering outgoing traffic.

IPv4 ACL 2001

IPv4 basic ACL 2001 has been successfully applied.

IPv4 ACL 2002 (Failed)

The device has failed to apply IPv4 basic ACL 2002.

rule 5 permit source 1.1.1.1 0 (Failed)

The device has failed to apply rule 5.

IPv4 default action

Packet filter default action for packets that do not match any IPv4 ACLs:

·     Deny—The default action deny has been successfully applied for packet filtering.

·     Deny (Failed)—The device has failed to apply the default action deny for packet filtering. The action permit still functions.

·     Permit—The default action permit has been successfully applied for packet filtering.

IPv6 default action

Packet filter default action for packets that do not match any IPv6 ACLs:

·     Deny—The default action deny has been successfully applied for packet filtering.

·     Deny (Failed)—The device has failed to apply the default action deny for packet filtering. The action permit still functions.

·     Permit—The default action permit has been successfully applied for packet filtering.

MAC default action

Packet filter default action for packets that do not match any Layer 2 ACLs:

·     Deny—The default action deny has been successfully applied for packet filtering.

·     Deny (Failed)—The device has failed to apply the default action deny for packet filtering. The action permit still functions.

·     Permit—The default action permit has been successfully applied for packet filtering.

packet-filter

Use packet-filter to apply an ACL to an interface to filter packets.

Use undo packet-filter to remove an ACL from an interface.

Syntax

packet-filter [ ipv6 | mac ] { acl-number | name acl-name } { inbound | outbound }

undo packet-filter [ ipv6 | mac ] { acl-number | name acl-name } { inbound | outbound }

Default

No ACL is applied to an interface to filter packets.

Views

Interface view

Predefined user roles

network-admin

Parameters

ipv6: Specifies the IPv6 ACL type.

mac: Specifies the Layer 2 ACL type.

acl-number: Specifies an ACL by its number. The following are available value ranges:

·     2000 to 2999 for basic ACLs.

·     3000 to 3999 for advanced ACLs.

·     4000 to 4999 for Layer 2 ACLs.

name acl-name: Specifies an ACL by its name. The acl-name argument is a case-insensitive string of 1 to 63 characters.

inbound: Filters incoming packets.

outbound: Filters outgoing packets.

Usage guidelines

This command does not take effect on member ports of an aggregation group.

 

 

 

Examples

# Apply IPv4 basic ACL 2001 to filter incoming traffic on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] packet-filter 2001 inbound

Related commands

display packet-filter

display packet-filter statistics

display packet-filter verbose

packet-filter (service template view)

Use packet-filter to apply an ACL to a service template to fitler packets.

Use undo packet-filter to remove an ACL from a service template.

Syntax

packet-filter [ ipv6 ] { acl-number | name acl-name } { inbound | outbound }

undo packet-filter [ ipv6 ] { inbound | outbound }

Default

No ACL is applied to a service template to filter packets.

Views

Service template view

Predefined user roles

network-admin

Parameters

ipv6: Specifies the IPv6 ACL type.

acl-number: Specifies an ACL by its number. The following are available value ranges:

·     2000 to 2999 for basic ACLs.

·     3000 to 3999 for advanced ACLs.

name acl-name: Specifies an ACL by its name. The acl-name argument is a case-insensitive string of 1 to 63 characters.

inbound: Filters incoming packets.

outbound: Filters outgoing packets.

Usage guidelines

An ACL applied to a service template can only match the source IP address, destination IP address, source port number, destination port number, and protocol of packets.

You can apply only one ACL to the same direction of a service template.

This command can be executed only when the service template is disabled.

Examples

# Apply IPv4 basic ACL 2001 to filter incoming traffic of service template service1.

<Sysname> system-view

[Sysname] wlan service-template service1

[Sysname-wlan-st-service1] packet-filter 2001 inbound

packet-filter default deny

Use packet-filter default deny to set the packet filtering default action to deny. The packet filter denies packets that do not match any ACL rule.

Use undo packet-filter default deny to restore the default.

Syntax

packet-filter default deny

undo packet-filter default deny

Default

The packet filtering default action is permit. The packet filter permits packets that do not match any ACL rule.

Views

System view

Predefined user roles

network-admin

Usage guidelines

The packet filter applies the default action to all ACL applications for packet filtering. The default action appears in the display command output for packet filtering.

Examples

# Set the packet filter default action to deny.

<Sysname> system-view

[Sysname] packet-filter default deny

Related commands

display packet-filter

display packet-filter statistics

display packet-filter verbose

reset acl counter

Use reset acl counter to clear statistics for ACLs.

Syntax

reset acl [ ipv6 | mac ] counter { acl-number | all | name acl-name }

Views

User view

Predefined user roles

network-admin

Parameters

ipv6: Specifies the IPv6 ACL type.

mac: Specifies the Layer 2 ACL type.

acl-number: Specifies an ACL by its number. The following are available value ranges:

·     2000 to 2999 for basic ACLs.

·     3000 to 3999 for advanced ACLs.

·     4000 to 4999 for Layer 2 ACLs.

all: Clears statistics for all ACLs of the specified type.

name acl-name: Clears statistics of an ACL specified by its name. The acl-name argument is a case-insensitive string of 1 to 63 characters.

Examples

# Clear statistics for IPv4 basic ACL 2001.

<Sysname> reset acl counter 2001

Related commands

display acl

reset packet-filter statistics

Use reset packet-filter statistics to clear the packet filtering statistics.

Syntax

reset packet-filter statistics interface [ interface-type interface-number ] { inbound | outbound } [ default | [ ipv6 | mac ] { acl-number | name acl-name } ] [ ipv6 ] { acl-number | name acl-name } ] }

Views

User view

Predefined user roles

network-admin

Parameters

interface [ interface-type interface-number ]: Specifies an interface by its type and number. If you do not specify an interface, this command clears packet filtering statistics for all interfaces.

inbound: Specifies the inbound direction.

outbound: Specifies the outbound direction.

default: Clears the default action statistics for packet filtering.

ipv6: Specifies the IPv6 ACL type.

mac: Specifies the Layer 2 ACL type.

acl-number: Specifies an ACL by its number. The following are available value ranges:

·     2000 to 2999 for basic ACLs.

·     3000 to 3999 for advanced ACLs.

·     4000 to 4999 for Layer 2 ACLs.

name acl-name: Specifies an ACL by its name. The acl-name argument is a case-insensitive string of 1 to 63 characters.

Usage guidelines

If default, acl-number, name acl-name, ipv6, or macis not specified, this command clears the packet filtering statistics for all ACLs.

Examples

# Clear IPv4 basic ACL 2001 statistics for inbound packet filtering on GigabitEthernet 1/0/1.

<Sysname> reset packet-filter statistics interface gigabitethernet 1/0/1 inbound 2001

Related commands

display packet-filter statistics

display packet-filter statistics sum

rule (IPv4 advanced ACL view)

Use rule to create or edit an IPv4 advanced ACL rule.

Use undo rule to delete an entire IPv4 advanced ACL rule or some attributes in the rule.

Syntax

rule [ rule-id ] { deny | permit } protocol [ { { ack ack-value | fin fin-value | psh psh-value | rst rst-value | syn syn-value | urg urg-value } * | established } | counting | destination { dest-address dest-wildcard | any } | destination-port operator port1 [ port2 ] | { dscp dscp | { precedence precedence | tos tos } * } | fragment | icmp-type { icmp-type [ icmp-code ] | icmp-message } | logging | source { source-address source-wildcard | any } | source-port operator port1 [ port2 ] | time-range time-range-name ] *

undo rule rule-id [ { { ack | fin | psh | rst | syn | urg } * | established } | counting | destination | destination-port | { dscp | { precedence | tos } * } | fragment | icmp-type | logging | source | source-port | time-range ] *

undo rule [ rule-id ] { deny | permit } protocol [ { { ack ack-value | fin fin-value | psh psh-value | rst rst-value | syn syn-value | urg urg-value } * | established } | counting | destination { dest-address dest-wildcard | any } | destination-port  operator port1 [ port2 ] | { dscp dscp | { precedence precedence | tos tos } * } | fragment | icmp-type { icmp-type [ icmp-code ] | icmp-message } | logging | source { source-address source-wildcard | any } | source-port  | time-range time-range-name ] *

Default

No IPv4 advanced ACL rules exist.

Views

IPv4 advanced ACL view

Predefined user roles

network-admin

Parameters

rule-id: Specifies a rule ID in the range of 0 to 65534. If you do not specify a rule ID when creating an ACL rule, the system automatically assigns it a rule ID. This rule ID is the nearest higher multiple of the numbering step to the current highest rule ID, starting from the start rule ID. For example, if the rule numbering step is 5 and the current highest rule ID is 28, the rule is numbered 30.

deny: Denies matching packets.

permit: Allows matching packets to pass.

protocol: Specifies one of the following values:

·     A protocol number in the range of 0 to 255.

·     A protocol by its name: gre (47), icmp (1), igmp (2), ip, ipinip (4), ospf (89), tcp (6), or udp (17). The ip keyword specifies all protocols.

Table 3 describes the parameters that you can specify regardless of the value for the protocol argument.

Table 3 Match criteria and other rule information for IPv4 advanced ACL rules

Parameters

Function

Description

source { source-address source-wildcard | any }

Specifies a source address.

The source-address source-wildcard arguments specify a source IP address and a wildcard mask in dotted decimal notation. An all-zero wildcard represents a host address.

The any keyword specifies any source IP address.

destination { dest-address dest-wildcard | any }

Specifies a destination address.

The dest-address dest-wildcard arguments specify a destination IP address and a wildcard mask in dotted decimal notation. An all-zero wildcard mask represents a host address.

The any keyword represents any destination IP address.

precedence precedence

Specifies an IP precedence value.

The precedence argument can be a number in the range of 0 to 7, or in words: routine (0), priority (1), immediate (2), flash (3), flash-override (4), critical (5), internet (6), or network (7).

tos tos

Specifies a ToS preference.

The tos argument can be a number in the range of 0 to 15, or in words: max-reliability (2), max-throughput (4), min-delay (8), min-monetary-cost (1), or normal (0).

dscp dscp

Specifies a DSCP priority.

The dscp argument can be a number in the range of 0 to 63, or in words: af11 (10), af12 (12), af13 (14), af21 (18), af22 (20), af23 (22), af31 (26), af32 (28), af33 (30), af41 (34), af42 (36), af43 (38), cs1 (8), cs2 (16), cs3 (24), cs4 (32), cs5 (40), cs6 (48), cs7 (56), default (0), or ef (46).

fragment

Applies the rule only to non-first fragments.

If you do not specify this keyword, the rule applies to all fragments and non-fragments.

logging

Logs the number of matching packets.

This feature requires that the module (for example, packet filtering) that uses the ACL supports logging.

time-range time-range-name

Specifies a time range for the rule.

The time-range-name argument is a case-insensitive string of 1 to 32 characters. If the time range is not configured, the system creates the rule. However, the rule using the time range can take effect only after you configure the time range. For more information about time range, see Security Configuration Guide.

If the protocol argument is tcp (6) or udp (17), set the parameters shown in Table 4.

Table 4 TCP/UDP-specific parameters for IPv4 advanced ACL rules

Parameters

Function

Description

source-port operator port1 [ port2 ]

Specifies one or more UDP or TCP source ports.

The operator argument can be lt (lower than), gt (greater than), eq (equal to), neq (not equal to), or range (inclusive range).

The port1 and port2 arguments are TCP or UDP port numbers in the range of 0 to 65535. The port2 argument is needed only when the operator argument is range.

TCP port numbers can be represented as: chargen (19), bgp (179), cmd (514), daytime (13), discard (9), dns (53), domain (53), echo (7), exec (512), finger (79), ftp (21), ftp-data (20), gopher (70), hostname (101), irc (194), klogin (543), kshell (544), login (513), lpd (515), nntp (119), pop2 (109), pop3 (110), smtp (25), sunrpc (111), tacacs (49), talk (517), telnet (23), time (37), uucp (540), whois (43), and www (80).

UDP port numbers can be represented as: biff (512), bootpc (68), bootps (67), discard (9), dns (53), dnsix (90), echo (7), mobilip-ag (434), mobilip-mn (435), nameserver (42), netbios-dgm (138), netbios-ns (137), netbios-ssn (139), ntp (123), rip (520), snmp (161), snmptrap (162), sunrpc (111), syslog (514), tacacs-ds (65), talk (517), tftp (69), time (37), who (513), and xdmcp (177).

destination-port operator port1 [ port2 ]

Specifies one or more UDP or TCP destination ports.

{ ack ack-value | fin fin-value | psh psh-value | rst rst-value | syn syn-value | urg urg-value } *

Specifies one or more TCP flags including ACK, FIN, PSH, RST, SYN, and URG.

Parameters specific to TCP.

The value for each argument can be 0 (flag bit not set) or 1 (flag bit set).

The TCP flags in a rule are ORed. For example, a rule configured with ack 0 psh 1 matches both packets that have the ACK flag bit not set and packets that have the PSH flag bit set.

established

Specifies the flags for indicating the established status of a TCP connection.

Parameter specific to TCP.

The rule matches TCP connection packets with the ACK or RST flag bit set.

If the protocol argument is icmp (1), set the parameters shown in Table 5.

Table 5 ICMP-specific parameters for IPv4 advanced ACL rules

Parameters

Function

Description

icmp-type { icmp-type icmp-code | icmp-message }

Specifies the ICMP message type and code.

The icmp-type argument is in the range of 0 to 255.

The icmp-code argument is in the range of 0 to 255.

The icmp-message argument specifies a message name. Supported ICMP message names and their corresponding type and code values are listed in Table 6.

Table 6 ICMP message names supported in IPv4 advanced ACL rules

ICMP message name

ICMP message type

ICMP message code

echo

8

0

echo-reply

0

0

fragmentneed-DFset

3

4

host-redirect

5

1

host-tos-redirect

5

3

host-unreachable

3

1

information-reply

16

0

information-request

15

0

net-redirect

5

0

net-tos-redirect

5

2

net-unreachable

3

0

parameter-problem

12

0

port-unreachable

3

3

protocol-unreachable

3

2

reassembly-timeout

11

1

source-quench

4

0

source-route-failed

3

5

timestamp-reply

14

0

timestamp-request

13

0

ttl-exceeded

11

0

Usage guidelines

Within an ACL, the permit or deny statement of each rule must be unique. If the rule you are creating or editing has the same deny or permit statement as another manually added rule in the ACL, the rule will not be created or changed. If the rule you are creating or editing has the same deny or permit statement as a dynamically added rule in the ACL, the rule will overwrite the dynamically added rule.

You can edit ACL rules only when the match order is config.

To view the existing IPv4 basic and advanced ACL rules, use the display acl all command.

The undo rule rule-id command without any optional parameters deletes an entire rule. If you specify optional parameters, the undo rule rule-id command deletes the specified attributes for the rule.

The undo rule [ rule-id ] { deny | permit } command can only be used to delete an entire rule. You must specify all the attributes of the rule for the command.

Examples

# Create an IPv4 advanced ACL rule to permit TCP packets with the destination port 80 from 129.9.0.0/16 to 202.38.160.0/24.

<Sysname> system-view

[Sysname] acl advanced 3000

[Sysname-acl-ipv4-adv-3000] rule permit tcp source 129.9.0.0 0.0.255.255 destination 202.38.160.0 0.0.0.255 destination-port eq 80

# Create IPv4 advanced ACL rules to permit all IP packets but the ICMP packets destined for 192.168.1.0/24.

<Sysname> system-view

[Sysname] acl advanced 3001

[Sysname-acl-ipv4-adv-3001] rule deny icmp destination 192.168.1.0 0.0.0.255

[Sysname-acl-ipv4-adv-3001] rule permit ip

# Create IPv4 advanced ACL rules to permit inbound and outbound FTP packets.

<Sysname> system-view

[Sysname] acl advanced 3002

[Sysname-acl-ipv4-adv-3002] rule permit tcp source-port eq ftp

[Sysname-acl-ipv4-adv-3002] rule permit tcp source-port eq ftp-data

[Sysname-acl-ipv4-adv-3002] rule permit tcp destination-port eq ftp

[Sysname-acl-ipv4-adv-3002] rule permit tcp destination-port eq ftp-data

# Create IPv4 advanced ACL rules to permit inbound and outbound SNMP and SNMP trap packets.

<Sysname> system-view

[Sysname] acl advanced 3003

[Sysname-acl-ipv4-adv-3003] rule permit udp source-port eq snmp

[Sysname-acl-ipv4-adv-3003] rule permit udp source-port eq snmptrap

[Sysname-acl-ipv4-adv-3003] rule permit udp destination-port eq snmp

[Sysname-acl-ipv4-adv-3003] rule permit udp destination-port eq snmptrap

Related commands

acl

acl logging interval

display acl

step

time-range

rule (IPv4 basic ACL view)

Use rule to create or edit an IPv4 basic ACL rule.

Use undo rule to delete an entire IPv4 basic ACL rule or some attributes in the rule.

Syntax

rule [ rule-id ] { deny | permit } [ counting | fragment | logging | source { source-address source-wildcard | any } | time-range time-range-name ] *

undo rule rule-id [ counting | fragment | logging | source | time-range ] *

undo rule [ rule-id ] { deny | permit } [ counting | fragment | logging | source { source-address source-wildcard | any } | time-range time-range-name ] *

Default

No IPv4 basic ACL rules exist.

Views

IPv4 basic ACL view

Predefined user roles

network-admin

Parameters

rule-id: Specifies a rule ID in the range of 0 to 65534. If you do not specify a rule ID when creating an ACL rule, the system automatically assigns it a rule ID. This rule ID is the nearest higher multiple of the numbering step to the current highest rule ID, starting from the start rule ID. For example, if the rule numbering step is 5 and the current highest rule ID is 28, the rule is numbered 30.

deny: Denies matching packets.

permit: Allows matching packets to pass.

counting: Enables rule match counting in software. If you do not specify this keyword, matches for the rule are not counted in software.

fragment: Applies the rule only to non-first fragments. If you do not specify this keyword, the rule applies to both fragments and non-fragments.

logging: Logs the number of matching packets. This feature is available only when the application module (for example, packet filtering) that uses the ACL supports the logging feature.

source { source-address source-wildcard | any }: Matches a source address. The source-address and source-wildcard arguments specify a source IP address and a wildcard mask in dotted decimal notation. A wildcard mask of zeros represents a host address. The any keyword represents any source IP address.

time-range time-range-name: Specifies a time range for the rule. The time-range-name argument is a case-insensitive string of 1 to 32 characters. If the time range is not configured, the system creates the rule. However, the rule using the time range can take effect only after you configure the time range. For more information about time range, see Security Configuration Guide.

Usage guidelines

Within an ACL, the permit or deny statement of each rule must be unique. If the rule you are creating or editing has the same deny or permit statement as another rule in the ACL, the rule will not be created or changed.

You can edit ACL rules only when the match order is config.

To view the existing IPv4 basic and advanced ACL rules, use the display acl all command.

The undo rule rule-id command without any optional parameters deletes an entire rule. If you specify optional parameters, the undo rule rule-id command deletes the specified attributes for the rule.

The undo rule [ rule-id ] { deny | permit } command can only be used to delete an entire rule. You must specify all the attributes of the rule for the command.

Examples

# Create a rule in IPv4 basic ACL 2000 to deny the packets from any source IP subnet but 10.0.0.0/8, 172.17.0.0/16, or 192.168.1.0/24.

<Sysname> system-view

[Sysname] acl basic 2000

[Sysname-acl-ipv4-basic-2000] rule permit source 10.0.0.0 0.255.255.255

[Sysname-acl-ipv4-basic-2000] rule permit source 172.17.0.0 0.0.255.255

[Sysname-acl-ipv4-basic-2000] rule permit source 192.168.1.0 0.0.0.255

[Sysname-acl-ipv4-basic-2000] rule deny source any

Related commands

acl

acl logging interval

display acl

step

time-range

rule (IPv6 advanced ACL view)

Use rule to create or edit an IPv6 advanced ACL rule.

Use undo rule to delete an entire IPv6 advanced ACL rule or some attributes in the rule.

Syntax

rule [ rule-id ] { deny | permit } protocol [ { { ack ack-value | fin fin-value | psh psh-value | rst rst-value | syn syn-value | urg urg-value } * | established } | counting | destination { dest-address dest-prefix | dest-address/dest-prefix | any } | destination-port operator port1 [ port2 ] | dscp dscp | flow-label flow-label-value | fragment | icmp6-type { icmp6-type icmp6-code | icmp6-message } | logging | routing [ type routing-type ] | hop-by-hop [ type hop-type ] | source { source-address source-prefix | source-address/source-prefix | any } | source-port operator port1 [ port2 ] | time-range time-range-name ] *

undo rule rule-id [ { { ack | fin | psh | rst | syn | urg } * | established } | counting | destination | destination-port | dscp | flow-label | fragment | icmp6-type | logging | routing | hop-by-hop | source | source-port | time-range ] *

undo rule [ rule-id ] { deny | permit } protocol [ { { ack ack-value | fin fin-value | psh psh-value | rst rst-value | syn syn-value | urg urg-value } * | established } | counting | destination { dest-address dest-prefix | dest-address/dest-prefix | any } | destination-port operator port1 [ port2 ] } | dscp dscp | flow-label flow-label-value | fragment | icmp6-type { icmp6-type icmp6-code | icmp6-message } | logging | routing [ type routing-type ] | hop-by-hop [ type hop-type ] | source { source-address source-prefix | source-address/source-prefix | any } | source-port operator port1 [ port2 ] } | time-range time-range-name ] *

Default

No IPv6 advanced ACL rules exist.

Views

IPv6 advanced ACL view

Predefined user roles

network-admin

Parameters

rule-id: Specifies a rule ID in the range of 0 to 65534. If you do not specify a rule ID when creating an ACL rule, the system automatically assigns it a rule ID. This rule ID is the nearest higher multiple of the numbering step to the current highest rule ID, starting from the start rule ID. For example, if the rule numbering step is 5 and the current highest rule ID is 28, the rule is numbered 30.

deny: Denies matching packets.

permit: Allows matching packets to pass.

protocol: Specifies one of the following values:

·     A protocol number in the range of 0 to 255.

·     A protocol name: gre (47), icmpv6 (58), ipv6, ipv6-ah (51), ipv6-esp (50), ospf (89), tcp (6), or udp (17). The ipv6 keyword specifies all protocols.

Table 7 describes the parameters that you can specify regardless of the value for the protocol argument.

Table 7 Match criteria and other rule information for IPv6 advanced ACL rules

Parameters

Function

Description

source { source-address/source-prefix | any }

Specifies a source IPv6 address.

The source-address argument specifies an IPv6 source address.

The source-prefix argument specifies a prefix length in the range of 1 to 128.

The any keyword represents any IPv6 source address.

destination { dest-address/dest-prefix | any }

Specifies a destination IPv6 address.

The dest-address argument specifies a destination IPv6 address.

The dest-prefix argument specifies a prefix length in the range of 1 to 128.

The any keyword represents any IPv6 destination address.

counting

Enables rule match counting in software.

 

dscp dscp

Specifies a DSCP preference.

The dscp argument can be a number in the range of 0 to 63, or in words, af11 (10), af12 (12), af13 (14), af21 (18), af22 (20), af23 (22), af31 (26), af32 (28), af33 (30), af41 (34), af42 (36), af43 (38), cs1 (8), cs2 (16), cs3 (24), cs4 (32), cs5 (40), cs6 (48), cs7 (56), default (0), or ef (46).

flow-label flow-label-value

Specifies a flow label value in an IPv6 packet header.

The flow-label-value argument is in the range of 0 to 1048575.

fragment

Applies the rule only to non-first fragments.

If you do not specify this keyword, the rule applies to all fragments and non-fragments.

logging

Logs the number of matching packets.

This feature requires that the module (for example, packet filtering) that uses the ACL supports logging.

routing [ type routing-type ]

Specifies an IPv6 routing header type.

routing-type: Value of the IPv6 routing header type, in the range of 0 to 255.

If you specify the type routing-type option, the rule applies to the specified type of IPv6 routing header. If you do not specify the type routing-type option, the rule applies to all types of IPv6 routing headers.

hop-by-hop [ type hop-type ]

Specifies an IPv6 Hop-by-Hop Options header type.

hop-type: Value of the IPv6 Hop-by-Hop Options header type, in the range of 0 to 255.

If you specify the type hop-type option, the rule applies to the specified type of IPv6 Hop-by-Hop Options header. If you do not specify the type hop-type option, the rule applies to all types of IPv6 Hop-by-Hop Options header.

time-range time-range-name

Specifies a time range for the rule.

The time-range-name argument is a case-insensitive string of 1 to 32 characters. If the time range is not configured, the system creates the rule. However, the rule using the time range can take effect only after you configure the time range. For more information about time range, see Security Configuration Guide.

If the protocol argument is tcp (6) or udp (17), set the parameters shown in Table 8.

Table 8 TCP/UDP-specific parameters for IPv6 advanced ACL rules

Parameters

Function

Description

source-port operator port1 [ port2 ]

Specifies one or more UDP or TCP source ports.

The operator argument can be lt (lower than), gt (greater than), eq (equal to), neq (not equal to), or range (inclusive range).

The port1 and port2 arguments are TCP or UDP port numbers in the range of 0 to 65535. The port2 argument is needed only when the operator argument is range.

TCP port numbers can be represented as: chargen (19), bgp (179), cmd (514), daytime (13), discard (9), dns (53), domain (53), echo (7), exec (512), finger (79), ftp (21), ftp-data (20), gopher (70), hostname (101), irc (194), klogin (543), kshell (544), login (513), lpd (515), nntp (119), pop2 (109), pop3 (110), smtp (25), sunrpc (111), tacacs (49), talk (517), telnet (23), time (37), uucp (540), whois (43), and www (80).

UDP port numbers can be represented as: biff (512), bootpc (68), bootps (67), discard (9), dns (53), dnsix (90), echo (7), mobilip-ag (434), mobilip-mn (435), nameserver (42), netbios-dgm (138), netbios-ns (137), netbios-ssn (139), ntp (123), rip (520), snmp (161), snmptrap (162), sunrpc (111), syslog (514), tacacs-ds (65), talk (517), tftp (69), time (37), who (513), and xdmcp (177).

destination-port operator port1 [ port2 ]

Specifies one or more UDP or TCP destination ports.

{ ack ack-value | fin fin-value | psh psh-value | rst rst-value | syn syn-value | urg urg-value } *

Specifies one or more TCP flags, including ACK, FIN, PSH, RST, SYN, and URG.

Parameters specific to TCP.

The value for each argument can be 0 (flag bit not set) or 1 (flag bit set).

The TCP flags in a rule are ORed. For example, a rule configured with ack 0 psh 1 matches both packets that have the ACK flag bit not set and packets that have the PSH flag bit set.

established

Specifies the flags for indicating the established status of a TCP connection.

Parameter specific to TCP.

The rule matches TCP connection packets with the ACK or RST flag bit set.

If the protocol argument is icmpv6 (58), set the parameters shown in Table 9.

Table 9 ICMPv6-specific parameters for IPv6 advanced ACL rules

Parameters

Function

Description

icmp6-type { icmp6-type icmp6-code | icmp6-message }

Specifies the ICMPv6 message type and code.

The icmp6-type argument is in the range of 0 to 255.

The icmp6-code argument is in the range of 0 to 255.

The icmp6-message argument specifies a message name. Supported ICMP message names and their corresponding type and code values are listed in Table 10.

Table 10 ICMPv6 message names supported in IPv6 advanced ACL rules

ICMPv6 message name

ICMPv6 message type

ICMPv6 message code

echo-reply

129

0

echo-request

128

0

err-Header-field

4

0

frag-time-exceeded

3

1

hop-limit-exceeded

3

0

host-admin-prohib

1

1

host-unreachable

1

3

neighbor-advertisement

136

0

neighbor-solicitation

135

0

network-unreachable

1

0

packet-too-big

2

0

port-unreachable

1

4

redirect

137

0

router-advertisement

134

0

router-solicitation

133

0

unknown-ipv6-opt

4

2

unknown-next-hdr

4

1

Usage guidelines

Within an ACL, the permit or deny statement of each rule must be unique. If the rule you are creating or editing has the same deny or permit statement as another manually added rule in the ACL, the rule will not be created or changed. If the rule you are creating or editing has the same deny or permit statement as a dynamically added rule in the ACL, the rule will overwrite the dynamically added rule.

You can edit ACL rules only when the match order is config.

To view the existing IPv6 basic and advanced ACL rules, use the display acl ipv6 all command.

The undo rule rule-id command without any optional parameters deletes an entire rule. If you specify optional parameters, the undo rule rule-id command deletes the specified attributes for a rule.

The undo rule [ rule-id ]  { deny | permit } command can only be used to delete an entire rule. You must specify all the attributes of the rule for the command.

Examples

# Create an IPv6 advanced ACL rule to permit TCP packets with the destination port 80 from 2030:5060::/64 to FE80:5060::/96.

<Sysname> system-view

[Sysname] acl ipv6 advanced 3000

[Sysname-acl-ipv6-adv-3000] rule permit tcp source 2030:5060::/64 destination fe80:5060::/96 destination-port eq 80

# Create IPv6 advanced ACL rules to permit all IPv6 packets but the ICMPv6 packets destined for FE80:5060:1001::/48.

<Sysname> system-view

[Sysname] acl ipv6 advanced 3001

[Sysname-acl-ipv6-adv-3001] rule deny icmpv6 destination fe80:5060:1001:: 48

[Sysname-acl-ipv6-adv-3001] rule permit ipv6

# Create IPv6 advanced ACL rules to permit inbound and outbound FTP packets.

<Sysname> system-view

[Sysname] acl ipv6 advanced 3002

[Sysname-acl-ipv6-adv-3002] rule permit tcp source-port eq ftp

[Sysname-acl-ipv6-adv-3002] rule permit tcp source-port eq ftp-data

[Sysname-acl-ipv6-adv-3002] rule permit tcp destination-port eq ftp

[Sysname-acl-ipv6-adv-3002] rule permit tcp destination-port eq ftp-data

# Create IPv6 advanced ACL rules to permit inbound and outbound SNMP and SNMP trap packets.

<Sysname> system-view

[Sysname] acl ipv6 advanced 3003

[Sysname-acl-ipv6-adv-3003] rule permit udp source-port eq snmp

[Sysname-acl-ipv6-adv-3003] rule permit udp source-port eq snmptrap

[Sysname-acl-ipv6-adv-3003] rule permit udp destination-port eq snmp

[Sysname-acl-ipv6-adv-3003] rule permit udp destination-port eq snmptrap

# Create IPv6 advanced ACL 3004, and configure two rules: one permits packets with the Hop-by-Hop Options header type as 5, and the other one denies packets with other Hop-by-Hop Options header types.

<Sysname> system-view

[Sysname] acl ipv6 advanced 3004

[Sysname-acl-ipv6-adv-3004] rule permit ipv6 hop-by-hop type 5

[Sysname-acl-ipv6-adv-3004] rule deny ipv6 hop-by-hop

Related commands

acl

acl logging interval

display acl

step

time-range

rule (IPv6 basic ACL view)

Use rule to create or edit an IPv6 basic ACL rule.

Use undo rule to delete an entire IPv6 basic ACL rule or some attributes in the rule.

Syntax

rule [ rule-id ] { deny | permit } [ counting | fragment | logging | routing [ type routing-type ] | source { source-address source-prefix | source-address/source-prefix | any } | time-range time-range-name ] *

undo rule rule-id [ counting | fragment | logging | routing | source | time-range ] *

undo rule [ rule-id ] { deny | permit } [ counting | fragment | logging | routing [ type routing-type ] | source { source-address source-prefix | source-address/source-prefix | any } | time-range time-range-name ] *

Default

No IPv6 basic ACL rules exist.

Views

IPv6 basic ACL view

Predefined user roles

network-admin

Parameters

rule-id: Specifies a rule ID in the range of 0 to 65534. If you do not specify a rule ID when creating an ACL rule, the system automatically assigns it a rule ID. This rule ID is the nearest higher multiple of the numbering step to the current highest rule ID, starting from the start rule ID. For example, if the rule numbering step is 5 and the current highest rule ID is 28, the rule is numbered 30.

deny: Denies matching packets.

permit: Allows matching packets to pass.

counting: Enables rule match counting in software. If you do not specify this keyword, matches for the rule are not counted in software.

fragment: Applies the rule only to non-first fragments. If you do not specify this keyword, the rule applies to both fragments and non-fragments.

logging: Logs the number of matching packets. This feature is available only when the application module (for example, packet filtering) that uses the ACL supports the logging feature.

routing [ type routing-type ]: Applies the rule to the specified type of IPv6 routing header or all types of IPv6 routing headers. The routing-type argument specifies the value of the IPv6 routing header type, in the range of 0 to 255. If you do not specify the type routing-type option, the rule applies to all types of IPv6 routing headers.

source { source-address source-prefix | source-address/source-prefix | any }: Matches a source IPv6 address. The source-address argument specifies a source IPv6 address. The source-prefix argument specifies an address prefix length in the range of 1 to 128. The any keyword represents any IPv6 source address.

time-range time-range-name: Specifies a time range for the rule. The time-range-name argument is a case-insensitive string of 1 to 32 characters. If the time range is not configured, the system creates the rule. However, the rule using the time range can take effect only after you configure the time range. For more information about time range, see Security Configuration Guide.

Usage guidelines

Within an ACL, the permit or deny statement of each rule must be unique. If the rule you are creating or editing has the same deny or permit statement as another rule in the ACL, the rule will not be created or changed.

You can edit ACL rules only when the match order is config.

To view the existing IPv6 basic and advanced ACL rules, use the display acl ipv6 all command.

The undo rule rule-id command without any optional parameters deletes an entire rule. If you specify optional parameters, the undo rule rule-id command deletes the specified attributes for a rule.

The undo rule [ rule-id ] { deny | permit } command can only be used to delete an entire rule. You must specify all the attributes of the rule for the command.

Examples

# Create an IPv6 basic ACL rule to deny the packets from any source IP subnet but 1001::/16, 3124:1123::/32, or FE80:5060:1001::/48.

<Sysname> system-view

[Sysname] acl ipv6 basic 2000

[Sysname-acl-ipv6-basic-2000] rule permit source 1001:: 16

[Sysname-acl-ipv6-basic-2000] rule permit source 3124:1123:: 32

[Sysname-acl-ipv6-basic-2000] rule permit source fe80:5060:1001:: 48

[Sysname-acl-ipv6-basic-2000] rule deny source any

Related commands

acl

acl logging interval

display acl

step

time-range

rule (Layer 2 ACL view)

Use rule to create or edit a Layer 2 ACL rule.

Use undo rule to delete an entire Layer 2 ACL rule or some attributes in the rule.

Syntax

rule [ rule-id ] { deny | permit } [ cos dot1p | counting | dest-mac dest-address dest-mask | { lsap lsap-type lsap-type-mask | type protocol-type protocol-type-mask } | source-mac source-address source-mask | time-range time-range-name ] *

undo rule rule-id [ counting | time-range ] *

undo rule [ rule-id ] { deny | permit } [ cos dot1p | counting | dest-mac dest-address dest-mask | { lsap lsap-type lsap-type-mask | type protocol-type protocol-type-mask } | source-mac source-address source-mask | time-range time-range-name ] *

Default

No Layer 2 ACL rules exist.

Views

Layer 2 ACL view

Predefined user roles

network-admin

Parameters

rule-id: Specifies a rule ID in the range of 0 to 65534. If you do not specify a rule ID when creating an ACL rule, the system automatically assigns it a rule ID. This rule ID is the nearest higher multiple of the numbering step to the current highest rule ID, starting from the start rule ID. For example, if the rule numbering step is 5 and the current highest rule ID is 28, the rule is numbered 30.

deny: Denies matching packets.

permit: Allows matching packets to pass.

cos dot1p: Matches an 802.1p priority. The 802.1p priority can be specified by one of the following values:

·     A priority number in the range of 0 to 7.

·     A priority name: best-effort (0), background (1), spare (2), excellent-effort (3), controlled-load (4), video (5), voice (6), or network-management (7).

counting: Enables rule match counting in software. If you do not specify this keyword, matches for the rule are not counted in software.

dest-mac dest-address dest-mask: Matches a destination MAC address range. The dest-address and dest-mask arguments represent a destination MAC address and mask in the H-H-H format.

lsap lsap-type lsap-type-mask: Matches the DSAP and SSAP fields in LLC encapsulation. The lsap-type argument is a hexadecimal number that represents the encapsulation format. The value range for the lsap-type argument is 0 to ffff. The lsap-type-mask argument is a hexadecimal number that represents the LSAP mask. The value range for the lsap-type-mask argument is 0 to ffff.

type protocol-type protocol-type-mask: Matches one or more protocols in the Layer 2. The protocol-type argument is a hexadecimal number that represents a protocol type in Ethernet_II and Ethernet_SNAP frames. The value range for the protocol-type argument is 0 to ffff. The protocol-type-mask argument is a hexadecimal number that represents a protocol type mask. The value range for the protocol-type-mask argument is 0 to ffff.

source-mac source-address source-mask: Matches a source MAC address range. The source-address argument represents a source MAC address, and the sour-mask argument represents a mask in the H-H-H format.

time-range time-range-name: Specifies a time range for the rule. The time-range-name argument is a case-insensitive string of 1 to 32 characters. If the time range is not configured, the system creates the rule. However, the rule using the time range can take effect only after you configure the time range. For more information about time range, see Security Configuration Guide.

Usage guidelines

Within an ACL, the permit or deny statement of each rule must be unique. If the rule you are creating or editing has the same deny or permit statement as another rule in the ACL, the rule will not be created or changed.

You can edit ACL rules only when the match order is config.

To view the existing Layer 2 ACL rules, use the display acl mac all command.

The undo rule rule-id command without any optional parameters deletes an entire rule. If you specify optional parameters, the undo rule rule-id command deletes the specified attributes for the rule.

The undo rule [ rule-id ] { deny | permit } command can only be used to delete an entire rule. You must specify all the attributes of the rule for the command.

Examples

# Create a rule in Layer 2 ACL 4000 to permit ARP packets and deny RARP packets.

<Sysname> system-view

[Sysname] acl mac 4000

[Sysname-acl-mac-4000] rule permit type 0806 ffff

[Sysname-acl-mac-4000] rule deny type 8035 ffff

Related commands

acl

display acl

step

time-range

rule (WLAN client ACL view)

Use rule to create or edit a WLAN client ACL rule.

Use undo rule to delete a WLAN client ACL rule.

Syntax

rule [ rule-id ] { deny | permit } [ ssid ssid-name ]

undo rule rule-id

Default

No WLAN client ACL rules exist.

Views

WLAN client ACL view

Predefined user roles

network-admin

Parameters

rule-id: Specifies a rule ID in the range of 0 to 65534. If you do not specify a rule ID when creating an ACL rule, the system automatically assigns it a rule ID. This rule ID is the nearest higher multiple of the numbering step to the current highest rule ID, starting from the start rule ID. For example, if the rule numbering step is 5 and the current highest rule ID is 28, the rule is numbered 30.

deny: Denies matching packets.

permit: Allows matching packets to pass.

ssid ssid-name: Specifies an SSID by its name, a case-sensitive string of 1 to 32 characters. Supported characters include letters and digits, and spaces are allowed. If you do not specify this option, the rule applies to packets with any SSID.

Usage guidelines

Within an ACL, the permit or deny statement of each rule must be unique. If the rule you are creating or editing has the same deny or permit statement as another rule in the ACL, the rule will not be created or changed.

To view the existing WLAN client ACL rules, use the display acl wlan all command.

Examples

# Configure rules for WLAN client ACL 111 to permit packets with the SSID ME and deny packets with the SSID HIM.

<Sysname> system-view

[Sysname] acl wlan client 111

[Sysname-acl-client-111] rule permit ssid ME

[Sysname-acl-client-111] rule deny ssid HIM

Related commands

acl wlan client

display acl

step

rule comment

Use rule comment to configure a comment for an ACL rule.

Use undo rule comment to delete an ACL rule comment.

Syntax

rule rule-id comment text

undo rule rule-id comment

Default

A rule does not have a comment.

Views

IPv4 basic/advanced ACL view

IPv6 basic/advanced ACL view

Layer 2 ACL view

WLAN client ACL view

Predefined user roles

network-admin

Parameters

rule-id: Specifies an ACL rule ID in the range of 0 to 65534. The ACL rule must already exist.

text: Specifies a comment about the ACL rule, a case-sensitive string of 1 to 127 characters.

Usage guidelines

This command adds a comment to a rule if the rule does not have a comment. It modifies the comment for a rule if the rule already has a comment.

Examples

# Create a rule for IPv4 basic ACL 2000, and add a comment about the rule.

<Sysname> system-view

[Sysname] acl basic 2000

[Sysname-acl-ipv4-basic-2000] rule 0 deny source 1.1.1.1 0

[Sysname-acl-ipv4-basic-2000] rule 0 comment This rule is used on gigabitethernet 1/0/1.

Related commands

display acl

step

Use step to set a rule numbering step for an ACL.

Use undo step to restore the default.

Syntax

step step-value

undo step

Default

The rule numbering step is 5, and the start rule ID is 0.

Views

IPv4 basic/advanced ACL view

IPv6 basic/advanced ACL view

Layer 2 ACL view

WLAN client ACL view

Predefined user roles

network-admin

Parameters

step-value: Specifies the ACL rule numbering step in the range of 1 to 20.

Usage guidelines

The rule numbering step sets the increment by which the system numbers rules automatically. If you do not specify a rule ID when creating an ACL rule, the system automatically assigns it a rule ID. This rule ID is the nearest higher multiple of the numbering step to the current highest rule ID, starting from the start rule ID. For example, if the rule numbering step is 5 and the current highest rule ID is 12, the rule is numbered 15.

The wider the numbering step, the more rules you can insert between two rules. Whenever the step changes, the rules are renumbered, starting from the start rule ID. For example, if there are five rules numbered 0, 5, 9, 10, and 15, changing the step from 5 to 2 causes the rules to be renumbered 0, 2, 4, 6, and 8.

Examples

# Set the rule numbering step to 2 for IPv4 basic ACL 2000.

<Sysname> system-view

[Sysname] acl basic 2000

[Sysname-acl-ipv4-basic-2000] step 2

Related commands

display acl