Reference Guide

IPv4 Routing | 633
Defaults
Not configured.
Command Modes
CONFIGURATION
Command
History
Usage
Information
You cannot use Class D or Class E IP addresses or zero IP address (0.0.0.0) when creating a static
ARP. Zero MAC addresses (00:00:00:00:00:00) are also invalid.
Related
Commands
arp learn-enable
c e s
Enable ARP learning via Gratuitous ARP.
Syntax
arp learn-enable
Defaults
Disabled
Command Modes
CONFIGURATION
Command
History
Usage
Information
In FTOS versions prior to 8.3.1.0, if a gratuitous ARP is received some time after an ARP request is
sent, only RP2 installs the ARP information. For example:
1 At time t=0 FTOS sends an ARP request for IP A.B.C.D
2 At time t=1 FTOS receives an ARP request for IP A.B.C.D
mac-address
Enter a MAC address in nnnn.nnnn.nnnn format.
interface
Enter the following keywords and slot/port or number information:
• For a 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed
by the slot/port information.
• For the Management interface, enter the keyword
ManagementEthernet
followed by the slot/port information. The slot range is 0-1 and the port range is 0.
• For a Port Channel interface, enter the keyword
port-channel followed by a
number:
C-Series and S-Series Range: 1-128
E-Series Range: 1 to 32 for EtherScale, 1 to 255 for TeraScale and 1 to 512 for
ExaScale.
• For a SONET interface, enter the keyword
sonet followed by the slot/port
information.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet
followed by the slot/port information.
Version 8.1.1.0 Introduced on E-Series ExaScale
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.2.1.1 Introduced on E-Series
clear arp-cache Clear dynamic ARP entries from the ARP table.
show arp Display ARP table.
Version 8.3.1.0 Introduced