Specifications

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
Configuration Examples for EtherSwitch HWICs
113
• Inter-VLAN Routing: Example, page 113
• Single Subnet Configuration: Example, page 114
• Ethernet Ports on IP Phones with Multiple Ports: Example, page 114
Subnets for Voice and Data: Example
The following example shows separate subnets being configured for voice and data on the EtherSwitch
HWIC:
interface FastEthernet0/1/1
description DOT1Q port to IP Phone
switchport native vlan 50
switchport mode trunk
switchport voice vlan 150
interface Vlan 150
description voice vlan
ip address 209.165.200.227 255.255.255.0
ip helper-address 209.165.200.228 (See Note below)
interface Vlan 50
description data vlan
ip address 209.165.200.220 255.255.255.0
This configuration instructs the IP phone to generate a packet with an 802.1Q VLAN ID of 150 with an
802.1p value of 5 (default for voice bearer traffic).
Note In a centralized CallManager deployment model, the DHCP server might be located across the WAN
link. If so, an ip helper-address command pointing to the DHCP server should be included on the voice
VLAN interface for the IP phone. This is done to obtain its IP address as well as the address of the TFTP
server required for its configuration.
Be aware that IOS supports a DHCP server function. If this function is used, the EtherSwitch HWIC
serves as a local DHCP server and a helper address would not be required.
Inter-VLAN Routing: Example
Configuring inter-VLAN routing is identical to the configuration on an EtherSwitch HWIC with an
MSFC. Configuring an interface for WAN routing is consistent with other IOS platforms.
The following example provides a sample configuration:
interface Vlan 160
description voice vlan
ip address 10.6.1.1 255.255.255.0
interface Vlan 60
description data vlan
ip address 10.60.1.1 255.255.255.0
interface Serial0/3/0
ip address 172.3.1.2 255.255.255.0