Specifications

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
How to Configure EtherSwitch HWICs
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Configuring a Single Subnet for Voice and Data
For network designs with incremental IP telephony deployment, network managers can configure the
HWICs so that the voice and data traffic coexist on the same subnet. This might be necessary when it is
impractical either to allocate an additional IP subnet for IP phones or to divide the existing IP address
space into an additional subnet at the remote branch, it might be necessary to use a single IP address
space for branch offices. (This is one of the simpler ways to deploy IP telephony.)
This configuration approach must address two key considerations:
• Network managers should ensure that existing subnets have enough available IP addresses for the
new Cisco IP phones, each of which requires a unique IP address.
• Administering a network with a mix of IP phones and workstations on the same subnet might pose
a challenge.
Beginning in privileged EXEC mode, follow these steps to automatically configure Cisco IP phones to
send voice and data traffic on the same VLAN.
SUMMARY STEPS
1. enable
2. configure terminal
3. interface interface-id
4. switchport access vlan vlan-id
5. end
DETAILED STEPS
Command Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
interface interface-id
Example:
Router(config)#
interface 0/2/1
Enters the interface configuration mode and the port to be
configured (e.g., interface fa0/1/1).