User Manual

Routing
252
M6100 Web Management User Guide
information in its ARP cache. Newer information always replaces existing content in the ARP
cache.
The number of supported ARP entries is platform-dependent.
Devices can be moved in a network, which means the IP address that was at one time
associated with a certain MAC address is now found using a dif
ferent MAC, or may have
disappeared from the network altogether (i.e., it has been reconfigured, disconnected, or
powered off). This leads to stale information in the ARP cache unless entries are updated in
reaction to new information seen on the network, periodically refreshed to determine if an
address still exists, or removed from the cache if the entry has not been identified as a sender
of an ARP packet during the course of an ageout interval, usually specified via configuration.
From the Routing >
ARP link, you can access the following pages:
• Basic on page 252
• Advanced on page 252
Basic
From the Routing > ARP > Basic link, you can access the following pages:
• ARP Cache on page 252
ARP Cache
Use this screen to show ARP entries in the ARP Cache.
To display the ARP Cache page, click Routing
 ARP Basic  ARP Cache.
1. IP Address displays the IP address. It must be the IP address of a device on a subnet
attached to one of the switch's existing routing interfaces.
2. The Port field displays the associated Unit/Slot/Port of the connection.
3. MAC Address displays the unicast MAC address of the device.
The address is six two-digit
hexadecimal numbers separated by colons, for example 00:06:29:32:81:40.
4. Click Update to update the page with the latest information on the switch.
Advanced
.From the Routing > ARP > Advanced link, you can access the following pages:
• ARP Create on page 253
• ARP Table Configuration on page 254