Specifications

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Cisco Wide Area Application Services Command Reference
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Chapter 3 CLI Commands
(config) interface GigabitEthernet
Configuring Multiple Secondary IP Addresses on a Single Physical Interface
Use the interface secondary global configuration command to configure more than one IP address on
the same interface. By configuring multiple IP addresses on a single interface, the WAAS device can be
present in more than one subnet. This configuration allows you to optimize the response time because
the content goes directly from the WAAS device to the requesting client without being redirected through
a router. The WAAS device becomes visible to the client because they are configured on the same subnet.
You can assign up to four secondary addresses to an interface. These addresses become active only after
you configure the primary address. No two interfaces can have the same IP address in the same
subnetwork. To set these secondary IP addresses, use the ip address command.
If a WAAS device has one physical interface that has multiple secondary IP addresses assigned to it, the
egress traffic uses the source IP address that is chosen by IP routing. If the secondary IP addresses of a
WAAS device in the same subnet as the primary IP address, then the egress traffic uses the primary IP
address only. If the secondary IP addresses are in a different subnet than the primary IP address, then the
destination IP address determines which IP address on the WAAS device is used for the egress traffic.
Configuring Interfaces for DHCP
When you configure a WAAS device initially, you can configure a static IP address or use interface-level
DHCP to dynamically assign IP addresses to the interfaces on the WAAS device.
If you do not enable interface-level DHCP on the WAAS device, you must manually specify a static IP
address and network mask for the WAAS device. If the WAAS device moves to another location in
another part of the network, you must manually enter a new static IP address and network mask for this
WAAS device.
You can enable an interface for DHCP using the ip address dhcp [client_id | hostname] interface
configuration command. The client identifier is an ASCII value. The WAAS device sends its configured
client identifier and hostname to the DHCP server when requesting network information. You can
configure DHCP servers to identify the client identifier and the hostname that the WAAS device is
sending and then send the specific network settings that are assigned to the WAAS device.
Note You must disable autoregistration before you can manually configure an interface for DHCP.
Autoregistration is enabled by default on the first interface of the device.
Defining Interface Descriptions
You can specify a one-line description for a specific interface on a WAAS device. Use the description
text interface configuration command to enter the description for the specific interface. The maximum
length of the description text is 240 characters. This feature is supported for the Gigabit Ethernet,
port-channel, and Standby interfaces.
Note This feature is not currently supported for the SCSI or IDE interfaces.
After you define the description for an interface, use the show EXEC commands to display the defined
interface descriptions. Enter the show interface interface type slot/port EXEC command to display the
defined description for a specific interface on the WAE.
Configuring a Standby Group
You can associate an interface with a standby group by using the standby 1 interface configuration
command. To make an interface the active interface in a standby group, use the standby 1 primary
interface configuration command. If you have already associated an interface with a standby group but