Enabling proxy ARP globally
To enable IP proxy ARP on a global basis, enter the ip proxy-arp command.
device(config)# ip proxy-arp
To again disable IP proxy ARP on a global basis, enter the no ip proxy-arp command.
device(config)# no ip proxy-arp
Syntax: [no] ip proxy-arp
Enabling IP ARP on an interface
NOTE
Conguring proxy ARP at the Interface level overrides the global
conguration.
To enable IP proxy ARP on an interface, enter the following commands.
device(config)# interface ethernet 5
device(config-if-e1000-5)# ip proxy-arp enable
To again disable IP proxy ARP on an interface, enter the following command.
device(config)# interface ethernet 5
device(config-if-e1000-5)# ip proxy-arp disable
Syntax: [no] ip proxy-arp { enable | disable }
NOTE
By default, gratuitous ARP is disabled for local proxy ARP.
Creating static ARP entries
Brocade Layer 3 switches have a static ARP table, in addition to the regular ARP cache. The static ARP table contains entries that you
congure.
Static entries are useful in cases where you want to pre-congure an entry for a device that is not connected to the Layer 3 switch, or you
want to prevent a particular entry from aging out. The software removes a dynamic entry from the ARP cache if the ARP aging interval
expires before the entry is refreshed. Static entries do not age out, regardless of whether the Brocade device receives an ARP request
from the device that has the entry address.
NOTE
You cannot create static ARP entries on a Layer 2 switch.
The maximum number of static ARP entries you can congure depends on the software version running on the device.
To create a static ARP entry, enter a command such as the following.
device(config)# arp 1 10.53.4.2 0000.0054.2348 ethernet 1/1/2
Syntax: arp num ip-addr mac-addr ethernet port
The num variable species the entry number. You can specify a number from 1 up to the maximum number of static entries allowed on
the device.
The ip-addr variable species the IP address of the device that has the MAC address of the entry.
The mac-addr variable species the MAC address of the entry.
Conguring IP parameters - Layer 3 switches
FastIron Ethernet Switch Layer 3 Routing
56 53-1003627-04
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