Administering The Arp Cache; Displaying The Arp Cache; Removing An Arp Cache Entry - 3Com SUPERSTACK 2200 User Manual

Administering
the ARP Cache
Top-Level Menu
system
ethernet
interface
fddi
route
display
bridge
arp
remove
ip
rip
flush
snmp
ping
analyzer
statistics
script
logout
Top-Level Menu
system
ethernet
interface
fddi
route
display
bridge
arp
remove
ip
rip
flush
snmp
ping
analyzer
statistics
script
logout
The Switch 2200 uses the Address Resolution Protocol (ARP) to find the
MAC addresses corresponding to the IP addresses of hosts and routers on
the same subnets. An ARP cache is a table of known IP addresses and their
corresponding MAC addresses.

Displaying the ARP Cache

To display the contents of the ARP cache, enter the following command
from the top level of the Administration Console:
ip arp display
The contents of the ARP cache are displayed as shown in this example:
RIP is active.
IP Address
158.101.1.112
158.101.1.117

Removing an ARP Cache Entry

You might want to remove an entry from the ARP cache if the MAC address
has changed.
To remove an entry from the ARP cache:
1 From the top level of the Administration Console, enter:
ip arp remove
2 Enter the IP address you want to remove.
The address is immediately removed from the table. If necessary, the system
will subsequently use ARP to find the new MAC address corresponding to
that IP address.
Setting Up an IP Interface for Management
MAC Address
08-00-1e-31-a6-2
08-00-1e-65-21-07
3-11
Interface
1
1