rule (IPv4 advanced ACL view)

source { source-address source-wildcard | any }

Specifies a source address.

The source-address source-wildcard arguments represent a source IP address and wildcard mask in dotted decimal notation. An all-zero wildcard specifies 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 represent a destination IP address and wildcard mask in dotted decimal notation. An all-zero wildcard specifies a host address.

The any keyword represents any destination IP address.

counting

Counts the number of times the IPv4 advanced ACL rule has been matched.

The counting keyword enables match counting specific to rules, and the hardware-count keyword in the packet-filter command enables match counting for all rules in an ACL. If the counting keyword is not specified, matches for the rule are not counted.

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).

If the ACL is used on an EB, or FD card in basic ACL hardware mode, this option (even if specified,) does not take effect for outbound application.

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 to only fragments.

Without this keyword, the rule applies to all fragments and non-fragments.

logging

Logs matching packets.

This function 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. It must start with an English letter. 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 timer range.

For more information about time range, see ACL and QoS Configuration Guide.

vpn-instance vpn-instance-name

Applies the rule to a VPN instance.

The vpn-instance-name argument is a case-sensitive string of 1 to 31 characters.

If no VPN instance is specified, the rule applies to all packets.

On a PE or MCE, rules with this option do not apply to packets received from a VPN site. For more information about PE and MCE, see MPLS Configuration Guide.

If the ACL is used on an EB, or FD card in basic ACL hardware mode, this option (even if specified,) does not take effect.

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. port2 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), 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. A rule configured with ack 0 psh 1 matches 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.

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 11.

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