Brocade Communications Systems ICX 7250 series, Руководство по настройке

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– The Layer 3 device forwards BootP and DHCP requests to a third-party BootP/DHCP server that contains the IP
addresses and other host configuration information.
• Connection of host to boot source (Layer 3 device or BootP/DHCP server)
–
RARP requires the IP host to be directly attached to the Layer 3 device.
– An IP host and the BootP/DHCP server can be on different networks and on different routers as long as the routers are
configured to forward ("help") the host boot request to the boot server.
– You can centrally configure other host parameters on the BootP/DHCP server and supply those parameters to the host
along with its IP address.
To configure the Layer 3 device to forward BootP/DHCP requests when boot clients and boot servers are on different subnets on
different Layer 3 device interfaces, refer to the DHCP client section in the
Brocade FastIron Configuration Guide .
Disabling RARP
RARP is enabled by default. To disable RARP, enter the following command at the global CONFIG level.
device(config)# no ip rarp
Syntax: [no] ip rarp
To re-enable RARP, enter the following command.
device(config)# ip rarp
Creating static RARP entries
You must configure the RARP entries for the RARP table. The Layer 3 switch can send an IP address in reply to a client RARP request
only if create a RARP entry for that client.
To assign a static IP RARP entry for static routes on a Brocade router, enter a command such as the following.
device(config)# rarp 1 0000.0054.2348 10.53.4.2
This command creates a RARP entry for a client with MAC address 0000.0054.2348. When the Layer 3 switch receives a RARP
request from this client, the Layer 3 switch replies to the request by sending IP address 192.53.4.2 to the client.
Syntax: rap number mac-addr ip-addr
The number parameter identifies the RARP entry number. You can specify an unused number from 1 to the maximum number of RARP
entries supported on the device. To determine the maximum number of entries supported on the device, refer to the section "Displaying
and modifying system parameter default settings" in the
Brocade FastIron Platform and Layer 2 Switching Configuration Guide .
The mac-addr parameter specifies the MAC address of the RARP client.
The ip-addr parameter specifies the IP address the Layer 3 switch will give the client in response to the client RARP request.
Changing the maximum number of static RARP entries supported
The number of RARP entries the Layer 3 switch supports depends on how much memory the Layer 3 switch has. To determine how
many RARP entries your Layer 3 switch can have, display the system default information using the procedure in the section "Displaying
system parameter default values" in the
Brocade FastIron Platform and Layer 2 Switching Configuration Guide .
If your Layer 3 switch allows you to increase the maximum number of RARP entries, you can use a procedure in the same section to do
so.
Reverse Address Resolution Protocol configuration
Brocade FastIron Layer 3 Routing Configuration Guide
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