C
HAPTER
13
| Security Measures
ARP Inspection
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â—† If the log buffer is full, the oldest entry will be replaced with the newest
entry.
PARAMETERS
These parameters are displayed:
◆ ARP Inspection Status – Enables ARP Inspection globally.
(Default: Disabled)
◆ ARP Inspection Validation – Enables extended ARP Inspection
Validation if any of the following options are enabled.
(Default: Disabled)
â–
Dst-MAC – Validates the destination MAC address in the Ethernet
header against the target MAC address in the body of ARP
responses.
â–
IP – Checks the ARP body for invalid and unexpected IP addresses.
Sender IP addresses are checked in all ARP requests and responses,
while target IP addresses are checked only in ARP responses.
â–
Src-MAC – Validates the source MAC address in the Ethernet
header against the sender MAC address in the ARP body. This check
is performed on both ARP requests and responses.
◆ Log Message Number – The maximum number of entries saved in a
log message. (Range: 0-256; Default: 5)
◆ Log Interval – The interval at which log messages are sent.
(Range: 0-86400 seconds; Default: 1 second)
WEB INTERFACE
To configure global settings for ARP Inspection:
1. Click Security, ARP Inspection.
2. Select Configure General from the Step list.
3. Enable ARP inspection globally, enable any of the address validation
options, and adjust any of the logging parameters if required.
4. Click Apply.
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