Specifications

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Cisco 1700 Series Router Software Configuration Guide
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Chapter 4 Configuring Routing Among VLANs with IEEE 802.1Q Encapsulation
IEEE 802.1Q Encapsulation Configuration Task List
Once you have IP routing enabled on the router, you can customize the
characteristics to suit your environment. If necessary, refer to the IP configuration
chapters in the Cisco IOS IP and IP Routing Configuration Guide for guidelines
on configuring IP.
Defining the VLAN Encapsulation Format
To define the encapsulation format as IEEE 802.1Q, use the following commands
in interface configuration mode.
Assigning an IP Address to a Network Interface
An interface can have one primary IP address. To assign a primary IP address and
a network mask to a network interface, use the following command in interface
configuration mode.
A mask identifies the bits that denote the network number in an IP address. When
you use a mask to subnet a network, that mask is referred to as a subnet mask.
Command Task
Step1
interface fastethernet
slot/port.subinterface-number
1
1. If the router supports only port numbers, and not slot numbers, the format for this command is
interface fastethernet port.subinterface-number
Specify the subinterface on which
IEEE 802.1Q will be used.
Step2
encapsulation dot1q vlanid
Define the encapsulation format as
IEEE 802.1Q (dot1q) and specifies the
VLAN identifier.
Command Task
ip address ip-address mask
Set a primary IP address for an interface.