Static Arp Configuration; Ip Forwarding Configuration - HP 438031-B21 - 1:10Gb Ethernet BL-c Switch Cli Reference Manual

Static ARP configuration

Static ARP entries are permanent in the ARP cache and do not age out like the ARP entries that are learnt
dynamically. Static ARP entries enable the switch to reach the hosts without sending an ARP broadcast
request to the network. Static ARPs are also useful to communicate with devices that do not respond to
ARP requests. Static ARPs can also be configured on some gateways as a protection against malicious
ARP Cache corruption and possible DOS attacks.
The following table describes the Static ARP Configuration commands.
Table 123 Static ARP Configuration commands
Command
ip arp <IP address> <MAC
address> <VLAN number> <port
number>
no ip arp {<IP address>}
clear ip arp-cache
show ip arp static

IP Forwarding configuration

The following table describes the IP Forwarding Configuration commands.
Table 124 IP Forwarding Configuration commands
Command
[no] ip routing direct-broadcasts
ip routing
no ip routing
show ip routing
Description
Adds a permanent ARP entry.
Command mode: Global configuration
Deletes a permanent ARP entry.
Command mode: Global configuration
Clears static ARP entries.
Command mode: Global configuration
Displays current static ARP configuration.
Command mode: All except User EXEC
Description
Enables or disables forwarding directed broadcasts. This
command is disabled by default.
Command mode: Global configuration
Enables IP forwarding (routing) on the switch.
Command mode: Global configuration
Disables IP forwarding (routing) on the switch. Forwarding is
turned off by default.
Command mode: Global configuration
Displays the current IP forwarding settings.
Command mode: All except User EXEC
Configuration Commands
139