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Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 35 Configuring IP Unicast Routing
Configuring IP Addressing
Set ARP Encapsulation
By default, Ethernet ARP encapsulation (represented by the
arpa
keyword) is enabled on an IP interface.
You can change the encapsulation methods to SNAP if required by your network.
Beginning in privileged EXEC mode, follow these steps to specify the ARP encapsulation type:
To disable an encapsulation type, use the
no arp arpa
or
no arp snap
interface configuration command.
Enable Proxy ARP
By default, the switch uses proxy ARP to help hosts learn MAC addresses of hosts on other networks or
subnets.
Beginning in privileged EXEC mode, follow these steps to enable proxy ARP if it has been disabled:
To disable proxy ARP on the interface, use the
no ip proxy-arp
interface configuration command.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
interface
interface-id
Enter interface configuration mode, and specify the Layer 3
interface to configure.
Step 3
no shutdown
Enable the interface if necessary. By default, UNIs and ENIs
are disabled and NNIs are enabled.
Step 4
arp
{
arpa
|
snap
}
Specify the ARP encapsulation method:
•
arpa
—Address Resolution Protocol
•
snap
—Subnetwork Address Protocol
Step 5
end
Return to privileged EXEC mode.
Step 6
show interfaces
[
interface-id
]
Verify ARP encapsulation configuration on all interfaces or
the specified interface.
Step 7
copy running-config startup-config
(Optional) Save your entries in the configuration file.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
interface
interface-id
Enter interface configuration mode, and specify the Layer 3
interface to configure.
Step 3
no shutdown
Enable the interface if necessary. By default, UNIs and ENIs are
disabled and NNIs are enabled.
Step 4
ip proxy-arp
Enable proxy ARP on the interface.
Step 5
end
Return to privileged EXEC mode.
Step 6
show ip interface
[
interface-id
]
Verify the configuration on the interface or all interfaces.
Step 7
copy running-config startup-config
(Optional) Save your entries in the configuration file.
Содержание ME 3400 Series
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