3Com Command Reference Guide — V1.00
Parameter
packet-filter: The fire wall of packet-filtering.
act-number: The sequence number of ACL rule.
inbound: Use ACL rule to filter the packets received on the interface.
outbound: Use ACL rule to filter the packets forwarded from the interface.
Description
Using the firewall packet-filter command, you can apply related ACL on a specified
interface. Using the undo firewall packet-filter command, you can disable to apply
related ACL on a specified interface.
By default, no ACL rule is applied on the interface.
If you want to filter the packets received from an interface, you need to use the
keyword inbound; If you want to filter the packets forwarded from an interface, you
need to use the keyword outbound. If no direction is defined, the system will take
outbound as the keyword.
At most 20 rules of different types can be applied on the one direction of an interface.
The greater the rule sequence number is, the higher the priority is. When configuring
the rules, it is recommended to put the rules of the same network configuration into
the ACL of the same sequence number. You can use display acl command to view
the arrangement and sequence of the ACL.
For related commands, see acl.
Example
# Apply the rule 201 on the inbound direction of Serial0 interface.
[3Com-Serial0]firewall packet-filter 201 inbound
3.1.10 reset acl counters
Syntax
reset acl counters [ acl-number ]
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