Administrator Guide

Access Control Lists 665
[ sequence-number ]
{deny | permit} {every |
{{
ipv4-protocol | 0-255
| every} { srcip srcmask |
any | host
srcip } [{range
{ portkey | startport }
{ portkey | endport } |
{eq | neq | lt | gt}
{
portkey | 0-65535 }]
{ dstip dstmask | any |
host
dstip } [{range
{ portkey | startport }
{ portkey | endport } |
{eq | neq | lt | gt}
{
portkey | 0-65535 }]
[flag [+fin | -fin] [+syn
| -syn] [+rst | -rst]
[+psh | -psh] [+ack | -
ack] [+urg | -urg]
[established]] [icmp-
type
icmp-type [icmp-
code icmp-code ] | icmp-
message
icmp-message ]
[igmp-type igmp-type ]
[fragments] [precedence
precedence | tos tos
[ tosmask ] | dscp
dscp ]}} [time-range
time-range-name ] [log]
[assign-queue queue-id ]
[{mirror | redirect}
unit/slot/port ] [rate-
limit rate burst-size ]
Enter the permit and deny conditions for the extended
ACL.
• sequence-number — Identifies the order of application of
the permit/deny statement. If no sequence number is
assigned, permit/deny statements are assigned a sequence
number beginning at 1000 and incrementing by 10.
Statements are applied in hardware beginning with the
lowest sequence number. Sequence numbers apply only
within an access group; i.e., the ordering applies within
the access-group scope. The range for sequence numbers
is 1–2147483647.
•{
deny | permit } — Specifies whether the IP ACL rule
permits or denies the matching traffic.
•
{ ipv4-protocol | number | every } — Specifies the
protocol to match for the IP ACL rule.
– IPv4 protocols:
eigrp, gre, icmp, igmp, ip, ipinip, ospf,
tcp, udp, pim
– every : Match any protocol (don’t care)
•
srcip srcmask | any | host srcip — Specifies a source IP
address and netmask to match for the IP ACL rule.
– Specifying “any” implies specifying
srcip as “0.0.0.0”
and srcmask as “255.255.255.255” for IPv4.
– Specifying “host A.B.C.D” implies
srcip as “A.B.C.D”
and srcmask as “0.0.0.0”.
•
[{{eq | neq | lt | gt} { portkey | number } | range
startport endport }] — Specifies the layer-4 destination
port match condition for the IP ACL rule. A destination
port number, which ranges from 0-65535, can be entered,
or a
portkey , which can be one of the following keywords:
domain , echo , ftp , ftp-data , http , smtp , snmp , telnet ,
tftp , and www . Each of these keywords translates into its
equivalent destination port number.
Command Purpose