Configuring an
ARP ACL
Use the Security > ACL (Configure ACL - Add Rule - ARP) page to configure ACLs
based on ARP message addresses. ARP Inspection can then use these ACLs to filter
suspicious traffic (see “Configuring Global Settings for ARP Inspection” on
page 325).
Parameters
These parameters are displayed:
◆
Type – Selects the type of ACLs to show in the Name list.
◆
Name – Shows the names of ACLs matching the selected type.
◆
Action
– An ACL can contain any combination of permit or deny rules.
◆
Packet Type – Indicates an ARP request, ARP response, or either type.
(Range: IP, Request, Response; Default: IP)
◆
Source
/
Destination IP Address Type
– Specifies the source or destination
IPv4 address. Use “Any” to include all possible addresses, “Host” to specify a
specific host address in the Address field, or “IP” to specify a range of addresses
with the Address and Mask fields. (Options: Any, Host, IP; Default: Any)
◆
Source
/
Destination IP Address
– Source or destination IP address.
◆
Source
/
Destination IP Subnet Mask
– Subnet mask for source or destination
address. (See the description for Subnet Mask on page 282.)
◆
Source
/
Destination MAC Address Type
– Use “Any” to include all possible
addresses, “Host” to indicate a specific MAC address, or “MAC” to specify an
address range with the Address and Mask fields. (Options: Any, Host, MAC;
Default: Any)
◆
Source
/
Destination MAC Address
– Source or destination MAC address.
◆
Source
/
Destination MAC Bit Mask
– Hexadecimal mask for source or
destination MAC address.
◆
Log – Logs a packet when it matches the access control entry.
Web Interface
To add rules to an ARP ACL:
1.
Click Security, ACL.
2.
Select Configure ACL from the Step list.
3.
Select Add Rule from the Action list.
4.
Select ARP from the Type list.
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