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 user-defined ACL can only be config.

all: Specifies all ACLs of the specified type.

Usage guidelines

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

· The acl [ ipv6 ] number acl-number command.

· The acl { [ ipv6 ] { advanced | basic } | mac | user-defined } acl-number command.

If you create a named ACL by using the acl [ ipv6 ] number acl-number name acl-name command, you can enter the view of the ACL by using either of the following commands:

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

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

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

If you create a named ACL by using the acl { [ ipv6 ] { advanced | basic } | mac | user-defined } name acl-name command, you can enter the view of the ACL by using only the command that is used to create the ACL.

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

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 user-defined ACL 5000 and enter its view.

<Sysname> system-view

[Sysname] acl user-defined 5000

[Sysname-acl-user-5000]

# Create user-defined ACL flow and enter its view.

<Sysname> system-view

[Sysname] acl user-defined name flow

[Sysname-acl-user-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 | user-defined ] 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.

user-defined: Specifies the user-defined ACL type.

source-acl-number: Specifies an existing source 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.

· 5000 to 5999 for user-defined 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:

· 2000 to 2999 for basic ACLs.

· 3000 to 3999 for advanced ACLs.

· 4000 to 4999 for Layer 2 ACLs.

· 5000 to 5999 for user-defined 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 acceleration feature is not inherited when an ACL is copied.

To specify the IPv4 ACL type, do not specify the ipv6 keyword.

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

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

User-defined 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

Use display acl to display ACL configuration and match statistics.

Syntax

display acl [ ipv6 | mac | user-defined ] { 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.

user-defined: Specifies the user-defined 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.

· 5000 to 5999 for user-defined 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.

To specify the IPv4 ACL type, do not specify the ipv6 keyword.

Examples

# Display configuration and match statistics for IPv4 basic ACL 2001.

<Sysname> display acl 2001

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

This is an IPv4 basic ACL.

ACL's step is 5, start ID is 0

rule 5 permit source 1.1.1.1 0

rule 5 comment This rule is used on HundredGigE1/0/1.

rule 10 deny source 10.0.0.101 0 counting time-range a3 (Active)

# Display configuration and match statistics for IPv4 advanced ACL 3001.

<Sysname> display acl 3001

Advanced IPv4 ACL 3001, 2 rules

ACL's step is 5, start ID is 0

rule 0 permit tcp

rule 5 permit ip source 10.0.0.100 0 (2854 times matched)

Table 1 Command output

Field	Description
Basic IPv4 ACL 2001 named test	Type, number, and name of the ACL. The following field information is about IPv4 basic ACL 2001.
2 rules	Number of rules contained in the ACL. In this example, 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.
start ID is 0	The start rule ID is 0.
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.
rule 5 comment This rule is used on HundredGigE1/0/1.	Comment of rule 5.
Active	The rule that uses the time range is active.
Inactive	The rule that uses the time range is inactive.
2854 times matched	Number of times that the rule is matched.

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qos-acl resource hardware-mode

Use qos-acl resource hardware-mode to configure the QoS and ACL resource hardware mode.

Use undo qos-acl resource hardware-mode to restore the default.

Syntax

qos-acl resource hardware-mode hardware-mode-value

undo qos-acl resource hardware-mode

Default

No QoS and ACL resource hardware mode is configured.

Views

System view

Predefined user roles

network-admin

Parameters

hardware-mode-value: Specifies a hardware mode. Only the inherit mode is supported in the current software version. This mode allows an ACL applied to a Layer 3 Ethernet interface to match the packets on both the interface and all its subinterfaces.

Usage guidelines

After you configure the inherit mode, a Layer 3 Ethernet subinterface cannot be applied with an ACL, and all ACLs applied to Layer 3 Ethernet subinterfaces are removed after the device is rebooted.

After configuring a hardware mode, save the running configuration and reboot the device for it to take effect.

Examples

# Configure the QoS and ACL resource hardware mode as inherit.

<Sysname> system-view

[Sysname] qos-acl resource hardware-mode inherit

Please save the running configuration and reboot the device to activate the settings.

reset acl counter

Use reset acl counter to clear statistics for ACLs.

Syntax

reset acl [ ipv6 | mac | user-defined ] 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.

user-defined: Specifies the user-defined 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.

· 5000 to 5999 for user-defined 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.

Usage guidelines

To specify the IPv4 ACL type, do not specify the ipv6 keyword.

Examples

# Clear statistics for IPv4 basic ACL 2001.

<Sysname> reset acl counter 2001

Related commands

display acl

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 ] | { { precedence precedence | tos tos } * | { precedence precedence | ecn ecn } * | { dscp dscp | ecn ecn } * } | fragment | icmp-type { icmp-type [ icmp-code ] | icmp-message } | qos-local-id local-id-value | source { source-address source-wildcard | any } | source-port operator port1 [ port2 ] | time-range time-range-name | vpn-instance vpn-instance-name ] *

rule [ rule-id ] { deny | permit } { gre-encapsulation | ipinip-encapsulation | vxlan } [ destination { dest-address dest-wildcard | any } | source { source-address source-wildcard | any } | source-port operator port1 [ port2 ] | vxlan-id vxlan-id ] * inner-protocol inner-protocol [ counting | inner-destination { dest-address dest-wildcard | any } | inner-destination-port operator port1 [ port2 ] | inner-established | inner-source { source-address source-wildcard | any } | inner-source-port operator port1 [ port2 ] | [ logging ] | time-range time-range-name ] *

undo rule rule-id [ { { ack | fin | psh | rst | syn | urg } * | established } | counting | destination | destination-port | { { precedence | tos } * | { precedence | ecn } * | { dscp | ecn } * } | fragment | icmp-type | packet-length | qos-local-id | source | source-port | time-range | ttl | vpn-instance ] *

undo rule { 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 ] | { { precedence | tos } * | { precedence | ecn } * | { dscp dscp | ecn } * } | fragment | icmp-type { icmp-type [ icmp-code ] | icmp-message } | qos-local-id | source { source-address source-wildcard | any } | source-port operator port1 [ port2 ] | time-range time-range-name | vpn-instance vpn-instance-name ] *

undo rule { deny | permit } { gre-encapsulation | ipinip-encapsulation | vxlan } [ destination { dest-address dest-wildcard | any } | source { source-address source-wildcard | any } | source-port operator port1 [ port2 ] | vxlan-id vxlan-id ] * inner-protocol inner-protocol [ counting | inner-destination { dest-address dest-wildcard | any } | inner-destination-port operator port1 [ port2 ] | inner-established | inner-source { source-address source-wildcard | any } | inner-source-port operator port1 [ port2 ] | [ logging ] | packet-length operator length-value1 [ length-value2 ] | 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 2 describes the parameters that you can specify regardless of the value for the protocol argument.

Table 2 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.
counting	Enables rule match counting in software.	The counting keyword enables match counting specific to rules, and the hardware-count keyword in the packet-filter command enables match counting in hardware for all rules in an ACL. If the counting keyword is not specified, matches for the rule are not counted in software.
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).
ecn ecn	Specifies an ECN value.	The ecn argument is a number in the range of 0 to 3. The last two bits in the differentiated services (DS) field of the IP header are defined for use by ECN. For more information about the DS field and ECN, see congestion avoidance configuration in ACL and QoS Configuration Guide.
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 any fragment-related parameters, the rule applies to all fragments and non-fragments.
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 ACL and QoS Configuration Guide.
qos-local-id local-id-value	Specifies a local QoS ID.	The value range for the local-id-value argument is 1 to 4095. By default, no local QoS ID is specified. For more information about the local QoS ID, see the routing policy in Layer 3—IP Routing Configuration Guide.
vpn-instance vpn-instance-name	Applies the rule to an MPLS L3VPN instance.	The vpn-instance-name argument is a case-sensitive string of 1 to 31 characters. If you do not specify a VPN instance, whether the rule applies to VPN packets varies by feature. See the description for the feature that uses ACLs.

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If the protocol argument is tcp (6) or udp (17), set the parameters shown in Table 3.

Table 3 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 ANDed. For example, a rule configured with ack 0 psh 1 matches the packets that have the ACK flag bit not set and 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 4.

Table 4 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 5.

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Table 5 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

‌

vxlan: Specifies VXLAN encapsulation. You can specify a VXLAN ID only after you specify this keyword.

gre-encapsulation: Specifies GRE encapsulation. The source-port operator port1 [ port2 ] and vxlan-id vxlan-id options cannot be configured if you specify the gre-encapsulation keyword.

ipinip-encapsulation: Specifies IP-in-IP encapsulation. The source-port operator port1 [ port2 ] and vxlan-id vxlan-id options cannot be configured if you specify the ipinip-encapsulation keyword.

vxlan-id vxlan-id: Specifies a VXLAN ID in the range of 0 to 16777215.

inner-protocol inner-protocol: Specifies an inner protocol type by its number in the range of 0 to 255 or by its name: gre (47), icmp (1), igmp (2), ip, ipinip (4), ospf (89), tcp (6), or udp (17). The ip keyword specifies all inner protocols. Table 6 describes the parameters that you can specify regardless of the value for the inner-protocol argument.

Table 6 Match criteria and other rule information for IPv4 advanced ACL rules

Parameters	Function	Description
inner-established	Specifies the inner flags for indicating the established status of a TCP connection.	Parameter specific to the inner TCP protocol. The rule matches TCP connection packets with the ACK or RST flag bit set.
inner-source { source-address source-wildcard \| any }	Specifies inner source IPv4 addresses.	The source-address source-wildcard arguments represent an inner source IPv4 address and an inner wildcard mask in dotted decimal notation. An all-zero wildcard mask specifies a host address. The any keyword specifies any inner source IPv4 addresses.
inner-destination { dest-address dest-wildcard \| any }	Specifies inner destination IPv4 addresses.	The dest-address dest-wildcard arguments represent an inner destination IPv4 address and an inner wildcard mask in dotted decimal notation. An all-zero wildcard mask specifies a host address. The any keyword represents any inner destination IPv4 addresses.

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If the inner-protocol argument is tcp (6) or udp (17), set the parameters shown in Table 7.

Table 7 TCP/UDP-specific parameters for IPv4 advanced ACL rules

Parameters	Function	Description
inner-source-port operator port1 [ port2 ]	Specifies inner 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). The TCP port domain is saved as dns in the configuration file.
inner-destination-port operator port1 [ port2 ]	Specifies inner UDP or TCP destination ports.

Parameters

Function

Description

inner-source-port operator port1 [ port2 ]

Specifies inner 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).

The TCP port domain is saved as dns in the configuration file.

inner-destination-port operator port1 [ port2 ]

Specifies inner UDP or TCP destination ports.

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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 { 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

# Create an IPv4 advanced ACL rule to permit VXLAN packets whose inner source IP address is in subnet 192.168.1.0/24.

<Sysname> system-view

[Sysname] acl advanced 3004

[Sysname-acl-ipv4-adv-3004] rule permit vxlan inner-protocol ip inner-source 192.168.1.0 0.0.0.255

Related commands

acl

display acl

packet-filter (Security Command Reference)

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 | vpn-instance vpn-instance-name ] *

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

Default

No IPv4 basic ACL rules exist.

Views

IPv4 basic ACL view

Predefined user roles

network-admin

Parameters

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 ACL and QoS Configuration Guide.

vpn-instance vpn-instance-name: Applies the rule to an MPLS L3VPN instance. The vpn-instance-name argument is a case-sensitive string of 1 to 31 characters. If you do not specify a VPN instance, whether the rule applies to VPN packets varies by feature. See the description for the feature that uses ACLs.

Usage guidelines

The object group you specify when creating or editing a rule must already exist. Otherwise, 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 { deny | permit } command can only be used to delete an entire rule. You must specify all the attributes of the rule for the command.

The counting keyword in this command enables match counting specific to rules, and the hardware-count keyword in the packet-filter command enables match counting in hardware for all rules in an ACL. For more information about the packet-filter command , see packet filter commands in Security Command Reference.

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

display acl

packet-filter (Security Command Reference)

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 { object-group port-group-name | operator port1 [ port2 ] } | dscp dscp | ecn ecn | flow-label flow-label-value | fragment | icmp6-type { icmp6-type icmp6-code | icmp6-message } | qos-local-id local-id-value | 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 | vpn-instance vpn-instance-name ] *

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

undo rule { 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 | ecn ecn | flow-label flow-label-value | fragment | icmp6-type { icmp6-type icmp6-code | icmp6-message } | qos-local-id | 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 | vpn-instance vpn-instance-name ] *

Default

No IPv6 advanced ACL rules exist.

Views

IPv6 advanced ACL view

Predefined user roles

network-admin

Parameters

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

Table 8 Match criteria and other rule information for IPv6 advanced ACL rules

Parameters	Function	Description
source { source-address source-prefix \| 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 \| 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.	The counting keyword enables match counting specific to rules, and the hardware-count keyword in the packet-filter command enables match counting in hardware for all rules in an ACL. If the counting keyword is not specified, matches for the rule are not counted in software. For more information about the packet-filter command , see packet filter commands in Security Command Reference.
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).
ecn ecn	Specifies an ECN value.	The ecn argument is an integer in the range of 0 to 3. This value represents the last two bits (ECN field) in the differentiated services (DS) field of the IP header. For more information about the DS field and ECN, see QoS configuration in ACL and QoS Configuration Guide.
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 any fragment-related parameters, the rule applies to all fragments and non-fragments.
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 ACL and QoS Configuration Guide.
qos-local-id local-id-value	Specifies a local QoS ID.	The value range for the local-id-value argument is 1 to 4095. By default, no local QoS ID is specified. For more information about the local QoS ID, see the routing policy in Layer 3—IP Routing Configuration Guide.
vpn-instance vpn-instance-name	Applies the rule to an MPLS L3VPN instance.	The vpn-instance-name argument is a case-sensitive string of 1 to 31 characters. If you do not specify a VPN instance, whether the rule applies to VPN packets varies by feature. See the description for the feature that uses ACLs.

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If the protocol argument is tcp (6) or udp (17), set the parameters shown in Table 9.

Table 9 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 ANDed. For example, a rule configured with ack 0 psh 1 matches the packets that have the ACK flag bit not set and 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.

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If the protocol argument is icmpv6 (58), set the parameters shown in Table 10.

Table 10 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 11.

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Table 11 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

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Usage guidelines

If an IPv6 advanced ACL is for QoS traffic classification or packet filtering:

· Do not specify the fragment keyword.

· Do not specify neq for the operator argument.

· Do not specify the vpn-instance, routing, hop-by-hop, or flow-label keyword if the ACL is for outbound application.

· Do not specify ipv6-ah for the protocol argument, or set its value to 0, 43, 44, 51, or 60 if the ACL is for outbound application.

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 { 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

display acl

packet-filter (Security Command Reference)

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 | routing [ type routing-type ] | source { source-address source-prefix | source-address/source-prefix | any } | time-range time-range-name | vpn-instance vpn-instance-name ] *

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

Default

No IPv6 basic ACL rules exist.

Views

IPv6 basic ACL view

Predefined user roles

network-admin

Parameters

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.

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.

Usage guidelines

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 { 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

display acl

packet-filter (Security Command Reference)

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 ] *

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

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

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

Default

No Layer 2 ACL rules exist.

Views

Layer 2 ACL view

Predefined user roles

network-admin

Parameters

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.

‌

NOTE:

If you specify a non-IPv4 protocol for the protocol-type argument, you must specify ffff for the protocol-type-mask argument to match the desired packets. For example, if you specify 86DD (representing IPv6) for the protocol-type argument, you must specify ffff for the protocol-type-mask argument to match IPv6 packets.

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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.

vxlan: Specifies VXLAN encapsulation.

vxlan-id vxlan-id: Specifies a VXLAN ID in the range of 0 to 16777215.

inner-type inner-protocol-type inner-protocol-type-mask: Matches inner link layer protocols. The inner-protocol-type argument is a 16-bit hexadecimal number that represents a protocol type in inner Ethernet_II and Ethernet_SNAP frames. The protocol-type-mask argument is a 16-bit hexadecimal number that represents a protocol type mask.

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

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

Usage guidelines

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 { 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

# Create a rule in Layer 2 ACL 4001 to permit VXLAN packets whose VXLAN ID is 300.

<Sysname> system-view

[Sysname] acl mac 4001

[Sysname-acl-mac-4001] rule permit vxlan vxlan-id 300

Related commands

acl

display acl

packet-filter (Security Command Reference)

step

time-range

rule (user-defined ACL view)

Use rule to create or edit a user-defined ACL rule.

Use undo rule to delete a user-defined ACL rule.

Syntax

Command set 1:

rule [ rule-id ] { deny | permit } [ { { ipv4 | l2 | l4 }rule-string rule-mask offset }&<1-8> ] [ counting | time-range time-range-name ] *

undo rule rule-id

undo rule { deny | permit } [ { { ipv4 | l2 | l4 } rule-string rule-mask offset }&<1-8> ] [ counting | time-range time-range-name ] *

Command set 2:

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 } | destination { dest-address dest-wildcard | any } | destination-port { operator port1 [ port2 ] } | { { precedence precedence | tos tos } * | { precedence precedence | ecn ecn } * | dscp dscp | ecn ecn } * } { source-address source-wildcard | any } | source-port { operator port1 [ port2 ] } | vpn-instance vpn-instance-name ] * [ { { ipv4 | l2 | l4 | l5 } rule-string rule-mask offset }&<1-8> ] [ counting | time-range time-range-name ] *

undo rule rule-id [ { { ack | fin | psh | rst | syn | urg } * | established } | destination | destination-port | { { precedence | tos } * | { precedence | ecn } * | { dscp | ecn } * } urce | source-port | vpn-instance vpn-instance-name | ipv4 | l2 | l4 | l5 | counting | time-range ] *

undo rule { deny | permit } protocol [ { { ack | fin | psh | rst | syn | urg } * | established } | destination { dest-address dest-wildcard | any } | destination-port { operator port1 [ port2 ] } | { { precedence precedence | tos tos } * | { precedence precedence | ecn ecn } * | { dscp dscp | ecn ecn } * } { source-address source-wildcard | any } | source-port { operator port1 [ port2 ] } | vpn-instance vpn-instance-name ] * [ { { ipv4 | l2 | l4 | l5 } rule-string rule-mask offset }&<1-8> ] [ counting | time-range time-range-name ] *

Command set 3:

rule [ rule-id ] { deny | permit } dual-stack { tcp | udp } [ { { ack ack-value | fin fin-value | psh psh-value | rst rst-value | syn syn-value | urg urg-value } * | established } | destination { any | microsegment microsegment-id [ mask-length mask-length ] } | destination-port { operator port1 [ port2 ] } | source { any | microsegment microsegment-id [ mask-length mask-length ] } | source-port { operator port1 [ port2 ] } | vpn-instance vpn-instance-name ] * [ counting | time-range time-range-name ] *

undo rule [ rule-id ] { deny | permit } dual-stack { tcp | udp } [ { { ack ack-value | fin fin-value | psh psh-value | rst rst-value | syn syn-value | urg urg-value } * | established } | destination { any | microsegment microsegment-id [ mask-length mask-length ] } | destination-port { operator port1 [ port2 ] } | source { any | microsegment microsegment-id [ mask-length mask-length ] } | source-port { operator port1 [ port2 ] } | vpn-instance vpn-instance-name ] * [ counting | time-range time-range-name ] *

Default

No user-defined ACL rules exist.

Views

User-defined 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. The numbering step for user-defined ACLs is fixed at 5. 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.

ipv4: Specifies that the offset is relative to the beginning of the IPv4 header.

l2: Specifies that the offset is relative to the beginning of the Layer 2 frame header.

l4: Specifies that the offset is relative to the beginning of the Layer 4 header.

l5: Specifies that the offset is relative to the beginning of the Layer 5 header.

rule-string: Defines a match pattern in hexadecimal format. Its length must be a multiple of two.

rule-mask: Defines a match pattern mask in hexadecimal format. Its length must be the same as that of the match pattern. A match pattern mask is used for ANDing the selected string of a packet.

offset: Specifies an offset in bytes after which the match operation begins.

&<1-8>: Specifies that up to eight match patterns can be defined in the ACL rule.

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

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.

If the protocol argument is tcp (6), set the parameters shown in Table 12.

Table 12 TCP-specific parameters for user-defined ACL rules

Parameters	Function	Description
ack ack-value	Specifies one or more TCP flags including ACK, FIN, PSH, RST, SYN, and URG.	The value for each argument can be 0 (flag bit not set) or 1 (flag bit set). The TCP flags in a rule are ANDed. For example, a rule configured with ack 0 psh 1 matches packets that have the ACK flag bit not set and the PSH flag bit set.
fin fin-value
psh psh-value
rst rst-value
syn syn-value
urg urg-value
established	Specifies the flags for indicating the established status of a TCP connection.	The rule matches TCP connection packets with the ACK or RST flag bit set.

‌

precedence precedence: Specifies an IP precedence value in the range of 0 to 7 or specifies one of the following keywords: routine (0), priority (1), immediate (2), flash (3), flash-override (4), critical (5), internet (6), and network (7).

tos tos: Specifies a ToS value in the range of 0 to 15 or specifies one of the following keywords: max-reliability (2), max-throughput (4), min-delay (8), min-monetary-cost (1), and normal (0).

dscp dscp: Specifies a DSCP value, which can be a number from 0 to 63 or a keyword in Table 13.

Table 13 DSCP keywords and values

Keyword	DSCP value (binary)	DSCP value (decimal)
af11	001010	10
af12	001100	12
af13	001110	14
af21	010010	18
af22	010100	20
af23	010110	22
af31	011010	26
af32	011100	28
af33	011110	30
af41	100010	34
af42	100100	36
af43	100110	38
cs1	001000	8
cs2	010000	16
cs3	011000	24
cs4	100000	32
cs5	101000	40
cs6	110000	48
cs7	111000	56
default	000000	0
ef	101110	46

‌

ecn ecn: Specifies an ECN value in the range of 0 to 3. The last two bits in the differentiated services (DS) field of the IP header are defined for use by ECN. For more information about the DS field and ECN, see QoS configuration in ACL and QoS Configuration Guide.

source { source-address source-wildcard | any }: Specifies a source IP 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 IP address.

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

· The any keyword specifies any destination IP address.

source-port { operator port1 [ port2 ] }: Specifies one or more source TCP or UDP 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.

destination-port { operator port1 [ port2 ] }: Specifies one or more destination TCP or UDP 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.

vpn-instance vpn-instance-name: Applies the rule to an MPLS L3VPN instance. The vpn-instance-name argument is a case-sensitive string of 1 to 31 characters. For an ACL used to filter packets, if you do not specify a VPN instance, the rule applies only to non-VPN packets. For an ACL used by other features, if you do not specify a VPN instance, the implementation varies by feature. For more information, see the configuration guide of the feature.

Usage guidelines

If the rule ID has been used when you create a rule:

· For command set 1, the new rule overwrites the existing rule.

· For command set 2, the contents in the new rule are incrementally added to the existing rule.

To view the existing user-defined ACL rules, use the display acl user-defined all command.

Both the undo rule rule-id command and the undo rule { deny | permit } command delete an entire rule. When you use the undo rule { deny | permit } command, you must specify all the attributes of the rule. The undo rule { deny | permit } command can be used to delete rules created by using scripts, which have no rule IDs.

For command set 2:

· In addition to use-defined strings, a rule can use the source IP address, destination IP address, port number, and protocol type to match packets.

· To match TCP packets, specify tcp for the protocol argument, and specify l5 for offset purposes.

· To match UDP packets, specify udp for the protocol argument, and specify l5 for offset purposes.

· To match IP packets, specify ip for the protocol argument, and specify l4 for offset purposes.

· You can use the undo rule rule-id command to delete some attributes of the rule by specifying keywords in the command or delete the entire rule without specifying any keywords.

Examples

# Create a rule for user-defined ACL 5005 to permit ARP packets where the 12th and 13th bytes starting from the Layer 2 header are 0x0806.

<Sysname> system-view

[Sysname] acl user-defined 5005

[Sysname-acl-user-5005] rule permit l2 0806 ffff 12

# Create a rule for user-defined ACL 5009 to allow the TCP packets with the ACK bit set to pass through.

<Sysname> system-view

[Sysname] acl user-defined 5009

[Sysname-acl-user-5009] rule permit tcp ack 1

Related commands

acl

display acl

packet-filter (Security Command Reference)

time-range

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

User-defined 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 hundredgige 1/0/1.

Related commands

display acl

rule remark

Use rule remark to insert a remark for an ACL rule.

Use undo rule remark to delete ACL rule remarks.

Syntax

rule [ rule-id ] remark text

undo rule [ rule-id ] remark [ text ]

Default

An ACL rule does not have a remark.

Views

IPv4 basic/advanced ACL view

IPv6 basic/advanced ACL view

Layer 2 ACL view

User-defined ACL view

WLAN client/AP 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 can be an existing or nonexistent one. The rule ID determines the position where a remark is placed:

· For the config match order, if the rule ID is the same as an existing rule ID, the device inserts the remark before the existing rule. If the rule ID is a new rule ID, the device inserts the remark according to ascending order of rule IDs.

· For the auto match order, if the rule ID is the same as an existing rule ID, the device inserts the remark before the existing rule. If the rule ID is a new rule ID, the device inserts the remark at the end of the ACL rules.

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

Usage guidelines

If you do not specify the rule-id argument in the rule remark command, the system automatically assigns a rule ID to the remark. This rule ID is the nearest higher multiple of the numbering step to the current highest rule ID, starting from 5.

If you do not specify the rule-id or text argument in the undo rule remark command, the system deletes all rule remarks. If you do not specify the rule-id argument but specify the text argument, the system deletes only the specified remark.

Examples

# Add remarks Rules for VIP_start and Rules for VIP_end for rule 10 and rule 25, respectively, to indicate that rule 10, rule 15, rule 20, and rule 25 are designed for VIP users.

<Sysname> system-view

[Sysname] acl basic 2000

[Sysname-acl-basic-2000] rule 10 remark Rules for VIP_start

[Sysname-acl-basic-2000] rule 26 remark Rules for VIP_end

[Sysname-acl-basic-2000] display this

acl number 2000

rule 0 permit source 14.1.1.0 0.0.0.255

rule 5 permit source 10.1.1.1 0 time-range work-time

rule 10 remark Rules for VIP_start

rule 10 permit source 192.168.0.0 0.0.0.255

rule 15 permit source 1.1.1.1 0

rule 20 permit source 10.1.1.1 0

rule 25 permit counting

rule 26 remark Rules for VIP_end

return

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 [ start start-value ]

undo step

Default

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

Views

IPv4 basic/advanced ACL view

IPv6 basic/advanced ACL view

Layer 2 ACL view

Predefined user roles

network-admin

Parameters

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

start start-value: Specifies the start rule ID in the range of 0 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. If the start rule ID changes, the rules are renumbered, starting from the new start rule ID. If the step changes, the rules are renumbered, starting from the new step. 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 2, 4, 6, 8, and 10.

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

13-ACL and QoS Command Reference

ACL commands

acl

acl copy

description

display acl

qos-acl resource hardware-mode

reset acl counter

rule (IPv4 advanced ACL view)

rule (IPv4 basic ACL view)

rule (IPv6 advanced ACL view)

rule (IPv6 basic ACL view)

rule (Layer 2 ACL view)

rule (user-defined ACL view)

rule comment

rule remark

step

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