3Com 8807 Configuration Manual page 174

174 C 21: ACL C
HAPTER ONFIGURATION
If the time-range keyword is not selected, the ACL will be effective at any time
■
after being activated.
You can define multiple sub rules for the ACL by using the rule command
■
several times.
When the QoS/ACL action is configured under the port, if the QoS/ACL is
■
applied without sub rules, the QoS/ACL is matched as per the matching order
defined in the ACL rule; if applied with specific sub rules, the QoS/ACL is
matched as per the sequence applied under the port.
By default, ACL rules are matched in config order.
■
If you want to replace an existing rule, you are recommended to use the undo
■
command to delete the original rule first and then reconfigure the rule.
Defining basic ACL
Basic ACLs only make rules and process packets according to the source IP
addresses.
Perform the following configurations in the specified views.
Table 151 Define basic ACL
Operation
Enter basic ACL view (system view)
Define an ACL rule (basic ACL view)
Delete an ACL rule (basic ACL view)
Delete an ACL or all ACLs (system view)
Defining advanced ACL
Advanced ACLs define classification rules and process packets according to the
attributes of the packets such as source and destination IP addresses, TCP/UDP
ports used, and packet priority. ACLs support three types of priority schemes: ToS
(type of service) priority, IP priority and DSCP priority.
Perform the following configurations in the specified view.
Table 152 Define advanced ACL
Operation
Enter advanced ACL view
(system view)
Define an ACL rule
(advanced ACL view)
Command
acl { number acl-number | name acl-name
basic } [ match-order { config | auto } ]
rule [ rule-id ] { permit | deny } [ source {
source-addr wildcard | any } | fragment |
time-range name | vpn-instance
instance-name ]*
undo rule rule-id [ source | fragment |
time-range | vpn-instance instance-name ]*
undo acl { number acl-number | name
acl-name | all }
Command
acl { number acl-number | name acl-name advanced } [
match-order { config | auto } ]
rule [ rule-id ] { permit | deny } protocol [ source { source-addr
wildcard | any } ] [ destination { dest-addr wildcard | any } ] [
source-port operator port1 [ port2 ] ] [ destination-port
operator port1 [ port2 ] ] [ icmp-type type code ] [ established
] [ [ precedence precedence | tos tos ]* | dscp dscp ] [
fragment ] [ bt-flag ] [ time-range name ] [ vpn-instance
instance-name ]