ARP automatic scanning and fixed ARP commands
arp fixup
Use arp fixup to change the existing dynamic ARP entries into static ARP entries. You can use this
command again to change the dynamic ARP entries learned later into static.
Syntax
arp fixup
Views
System view
Predefined user roles
network-admin
Usage guidelines
The static ARP entries changed from dynamic ARP entries have the same attributes as the manually
configured static ARP entries.
The number of static ARP entries changed from dynamic ARP entries is restricted by the number of static
ARP entries that the device supports. As a result, the device may fail to change some dynamic ARP entries
into static ARP entries.
Suppose that the number of dynamic ARP entries is D and that of the existing static ARP entries is S.
When the dynamic ARP entries are being changed into static, new dynamic ARP entries may be created
(suppose the number is M) and some of the dynamic ARP entries may be aged out (suppose the number
is N). After the change process is completed, the number of static ARP entries is D + S + M – N.
To delete a specific static ARP entry changed from a dynamic one, use the undo arp ip-address
[ vpn-instance-name ] command. To delete all such static ARP entries, use the reset arp all or reset arp
static command.
Examples
# Enable fixed ARP.
<Sysname> system-view
[Sysname] arp fixup
arp scan
Use arp scan to enable ARP automatic scanning in the specified address range.
Syntax
arp scan [ start-ip-address to end-ip-address ]
Views
VLAN interface view
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