Additional References - Cisco HWIC-4ESW - EtherSwitch HWIC Switch User Manual

Additional References

ip address 172.3.1.2 255.255.255.0
Standard IGP routing protocols such as RIP, IGRP, EIGRP, and OSPF are supported on the EtherSwitch
Note
HWIC. Multicast routing is also supported for PIM dense mode, sparse mode and sparse-dense mode.
Single Subnet Configuration: Example
The EtherSwitch HWIC supports the use of an 802.1p-only option when configuring the voice VLAN.
Using this option allows the IP phone to tag VoIP packets with a Cost of Service of 5 on the native
VLAN, while all PC data traffic is sent untagged.
The following example shows a single subnet configuration for the EtherSwitch HWIC:
Router# FastEthernet 0/1/2
description Port to IP Phone in single subnet
switchport access vlan 40
The EtherSwitch HWIC instructs the IP phone to generate an 802.1Q frame with a null VLAN ID value
but with an 802.1p value (default is COS of 5 for bearer traffic). The voice and data VLANs are both 40
in this example.
Ethernet Ports on IP Phones with Multiple Ports: Example
The following example illustrates the configuration for the IP phone:
interface FastEthernet0/x/x
switchport voice vlan x
switchport mode trunk
The following example illustrates the configuration for the PC:
interface FastEthernet0/x/y
switchport mode access
switchport access vlan y
Note Using a separate subnet, and possibly a separate IP address space, may not be an option for some small
branch offices due to the IP routing configuration. If the IP routing can handle an additional subnet at
the remote branch, you can use Cisco Network Registrar and secondary addressing.
Additional References
The following sections provide references related to EtherSwitch HWICs.
100
Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards