Chapter 12
| Security Measures
ARP Inspection
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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.
Figure 203: Configuring Global Settings for ARP Inspection
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