Configuring Arp - Cisco SD208T-NA Administration Manual

Configuring IP Information

Configuring ARP

Configuring ARP
NOTE
STEP 1
STEP 2
Cisco Small Business 200 Series Smart Switch Administration Guide
Local
- —A directly-connected network whose prefix is derived from a
manually-configured switch's IPv6 address.
Dynamic
- —The destination is an indirectly-attached (remote) IPv6 subnet
address. The entry was obtained dynamically via the ND or ICMP
protocol.
Static
- —The entry was manually configured by a user.
The switch maintains an ARP (Address Resolution Protocol) table for all known
devices that reside in its directly-connected IP subnets. A directly-connected IP
subnet is the subnet to which an IPv4 interface of the switch is connected. When
the switch needs to send/route a packet to a local device, it searches the ARP
table to obtain the MAC address of the device. The ARP table contains both static
and dynamic addresses. Static addresses are manually configured and do not age
out. The switch creates dynamic addresses from the ARP packets it receives.
Dynamic addresses age out after a configured time.
The IP/MAC address mapping information in the ARP Table is used by the switch to
forward traffic originated by the switch.
To define the ARP tables:
Click IP Configuration > ARP. The ARP Table page opens.
Enter the parameters.
• ARP Entry Age Out—Enter the number of seconds that dynamic addresses
can remain in the ARP table. A dynamic address ages out after the time it is
in the table exceeds the ARP Entry Age Out time. When a dynamic address
ages out, it is deleted from the table, and only returns when it is relearned.
• Clear ARP Table Entries—Select the type of ARP entries to be cleared from
the system.
All
- —Deletes all of the static and dynamic addresses immediately.
Dynamic
- —Deletes all of the dynamic addresses immediately.
Static
- —Deletes all of the static addresses immediately.
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