Specifications

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Cisco Wide Area Application Services Command Reference
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Chapter 3 CLI Commands
(config) interface
does not apply; you can configure these Gigabit Ethernet interfaces to run at 10, 100, or 1000 Mbps. On
newer WAAS models, the 1000-Mbps setting implies autosense. For example, you cannot configure the
Gigabit Ethernet interface to run at 1000 Mbps and half duplex.
Using the cdp enable command in global configuration mode enables CDP globally on all the interfaces.
If you want to control CDP behavior per interface, then use the cdp enable command in interface
configuration mode. The interface level control overrides the global control.
To display the interface identifiers (for example, interface GigabitEthernet 1/0), use the
show
running-config or show startup-config commands. The autosense, bandwidth, full-duplex,
half-duplex, ip, and shutdown commands are listed separately in this command reference.
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 both are configured on the same subnet.
Up to four secondary addresses can be assigned to an interface. These addresses become active only after
the primary address is configured. 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. In contrast, 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
During the initial configuration of a WAAS device, you have the option of configuring a static IP address
for the WAAS device or using 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.
An interface can be enabled for DHCP by 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. DHCP servers
can be configured to identify the client identifier information and the hostname information that the
WAAS device is sending and then send back 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.