Cisco Cisco Firepower 4120 Security Appliance
Table 19: IP Routing: Advanced Parameters
Parameter
Description
Enable Sending Trap on
ICMP Error
Specifies whether DefensePro sends a trap there is an ICMP error
message.
Default: Enabled
Default: Enabled
Note:
The Internet Control Message Protocol (ICMP) is one of the core protocols
of the Internet Protocol Suite and is used by networked computers’ operating
systems to send error messages—indicating, for example, that a requested
service is not available, or that a host or router could not be reached.
Configuring the ARP Table
When Proxy ARP is enabled, a network host answers ARP queries for the network address that is not configured
on the receiving interface. Proxying ARP requests on behalf of another host effectively directs all LAN traffic
destined for that host to the proxying host. The captured traffic is then routed to the destination host via another
interface.
You can configure and manage the static ARP entries on the local router.
You can configure and manage the static ARP entries on the local router.
To configure the ARP table
1.
In the Configuration perspective, select Setup > Networking > IP Management > ARP Table.
2.
Do one of the following:
—
To add a new entry, click the (Add) button.
—
To edit an entry, double-click the row.
3.
Configure the ARP parameters and click Submit.
4.
Modify advanced parameters, if required; and then, click Submit.
Table 20: ARP: Entry Parameters
Parameter
Description
Port
The interface number where the station resides.
IP Address
The station’s IP address.
MAC Address
The station’s MAC address.
Type
The entry type.
Values:
Values:
•
Other—Not Dynamic or Static.
•
Invalid—Invalidates the ARP entry and effectively deletes it.
•
Dynamic—The entry is learned from ARP protocol. If the entry is not active for
a predetermined time, the node is deleted from the table.
•
Static—The entry was configured by the network management station and is
permanent.
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