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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Command Reference
OL-13271-03
Chapter 2 Cisco Catalyst Blade Switch 3130 and 3032 for Dell Cisco IOS Commands
ip sticky-arp (global configuration)
ip sticky-arp (global configuration)
Use the
ip sticky-arp
global configuration command to enable sticky Address Resolution Protocol
(ARP) on a switch virtual interface (SVI) that belongs to a private VLAN. Use the
no
form of this
command to disable sticky ARP.
ip sticky-arp
no ip sticky-arp
Syntax Description
This command has no arguments or keywords.
Defaults
Sticky ARP is enabled.
Command Modes
Global configuration
Command History
Usage Guidelines
Sticky ARP entries are those learned on private-VLAN SVIs. These entries do not age out.
The
ip sticky-arp
global configuration command is supported only on SVIs belonging to private
VLANs.
•
When you configure a private VLAN, sticky ARP is enabled on the switch (the default).
If you enter the
ip sticky-arp
interface
configuration command, it does not take effect.
If you enter the
no ip sticky-arp
interface
configuration command, you do not disable sticky ARP
on an interface.
Note
We recommend that you use the
show arp
privileged EXEC command to display and verify
private-VLAN interface ARP entries.
•
If you disconnect the switch from a device and then connect it to another device with a different
MAC address but with the same IP address, the ARP entry is not created, and this message appears:
*Mar 2 00:26:06.967: %IP-3-STCKYARPOVR: Attempt to overwrite Sticky ARP entry:
20.6.2.1, hw: 0000.0602.0001 by hw: 0000.0503.0001
•
If a MAC address of a device changes, you must use the
no arp
ip-address
global configuration
command to manually remove the private-VLAN interface ARP entries.
•
Use the
arp
ip-address hardware-address
type
global configuration command to add a
private-VLAN ARP entry.
Release
Modification
12.2(40)EX1
This command was introduced.