3Com 2928 - Baseline Plus Switch PWR, Руководство пользователя

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1-8
Table 1-7 describes the configuration items for creating a rule for an advanced IPv4 ACL.
Table 1-7
Configuration items for an advanced IPv4 ACL rule
Item Description
Select Access Control List (ACL)
Select the advanced IPv4 ACL for which you want to
configure rules.
Available ACLs are advanced IPv4 ACLs that have
been configured.
Rule ID
Select the
Rule ID
option and type a number for the
rule.
If you do not specify the rule number, the system will
assign one automatically.
Operation
Select the operation to be performed for packets
matching the rule.
z
Permit
: Allows matched packets to pass.
z
Deny
: Drops matched packets.
Check Fragment
Select this option to apply the rule to only non-first
fragments.
If you do no select this option, the rule applies to all
fragments and non-fragments.
Check Logging
Select this option to keep a log of matched packets.
A log entry contains the ACL rule number, operation
for the matched packets, protocol that IP carries,
source/destination address, source/destination port
number, and number of matched packets.
Source IP Address
Source Wildcard
Select the
Source IP Address
option and type a
source IPv4 address and a source wildcard mask, in
dotted decimal notation.
Destination IP Address
IP Address
Filter
Destination Wildcard
Select the
Source IP Address
option and type a
source IP address and a source wildcard mask, in
dotted decimal notation.
Protocol
Select the protocol to be carried by IP.
If you select
1 ICMP
, you can configure the ICMP
message type and code; if you select
6 TCP
or
17
UDP
, you can configure the TCP or UDP port.
Named ICMP Type
ICMP Type
ICMP Type
ICMP Code
Specify the ICMP message type and code.
These items are available only when you select
1
ICMP
from the
Protocol
drop-down box.
If you select
Other
from the
Named ICMP Type
drop-down box, you need to type values in the
ICMP
Type
and
ICMP Code
fields. Otherwise, the two
fields will take the default values, which cannot be
changed.