Users Guide

Access Control Lists 711
[ sequence-number ]
{deny | permit} {{
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}
interface ] [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,
sctp, tcp, udp, pim , arp , sctp
– number : a protocol number in decimal, e.g. 8 for EGP
– 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 source or
destination port match condition for the TCP or UDP
ACL rule. A port number, which ranges from 0-65535,
can be entered, or a
portkey , which can be one of the
following keywords: domain , echo , ftp , f tp-data , http ,
smtp , snmp , telnet , tftp , www , bgp , pop2 , pop3 , ntp , rip ,
time , and who . Each of these keywords translates into its
equivalent port number. A port match is only valid for the
TCP and UDP protocols.
Command Purpose