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Adding a static arp entry – Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide User Manual

Page 157

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Use the following command to configure static route resolve by default route.

device(config)# ip route next-hop-enable-default

Syntax: [no] ip route next-hop-enable-default

NOTE
This command can be independently applied on a per-VRF basis.

This command works independently with the ip route next-hop-recursion and ip route next-hop
commands. If the default route is a protocol route, that protocol needs to be enabled to resolve static
routes using the ip route next-hop command in order for static routes to resolve by this default route. If
the default route itself is a static route, you must configure the ip route next-hop-recursion command
to resolve other static routes by this default route.

Adding a static ARP entry

NOTE
Adding a static ARP entry is supported on FastIron X Series, Brocade FCX Series, ICX 6610 and ICX
6450 devices.

Static entries are useful in cases where you want to pre-configure an entry for a device that is not
connected to the Brocade device, 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. The software places a static ARP entry into the ARP
cache as soon as you create the entry.

To add a static ARP entry, enter a command such as the following at the global CONFIG level of the
CLI.

device(config)#arp 10.157.22.3 0000.00bb.cccc ethernet 3

This command adds a static ARP entry that maps IP address 10.157.22.3 to MAC address
0000.00bb.cccc. The entry is for a MAC address connected to device port 3.

Syntax: [no] arp ip-addrmac-addr ethernet port

The ip-addr variable specifies the IP address of the device that has the MAC address of the entry.

The mac-addr variable specifies the MAC address of the entry.

The ethernet port parameter specifies the port number attached to the device that has the MAC
address of the entry. Specify the port variable in one of the following formats:

The clear arp command clears learned ARP entries but does not remove any static ARP entries.

Modifying and displaying Layer 3 system parameter limits

This section shows how to view and configure some of the Layer 3 system parameter limits.

Adding a static ARP entry

FastIron Ethernet Switch Layer 3 Routing Configuration Guide

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