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Chapter 2
LAN Wizard
IRB for Ethernet
Layer 3 Ethernet Configuration
802.1Q Configuration
Trunking or Routing Configuration
OL-4015-08
If your router has a wireless interface, you can use Integrated Routing and
Bridging to have this interface form part of a bridge to the wireless LAN, and
enable traffic destined for the wireless network to be routed through this interface.
Click Yes if you want to configure this Layer 3 interface for Integrated Routing
and Bridging.
If you do not want this interface to be used in bridge to the wireless interface, click
No. You will still be able to configure it as a regular routing interface.
SDM supports Layer 3 Ethernet configuration on routers with installed 3750
switch modules. You can create VLAN configurations and designate router
Ethernet interfaces as DHCP servers.
You can configure a VLAN that does not use the 802.1Q encapsulation protocol
used for trunking connections. Provide a VLAN ID number, and check Native
VLAN if you do not want the VLAN to use 802.1Q tagging.
If you want to use the 802.1Q tagging, leave the Native VLAN box unchecked.
You can configure Layer 3 Ethernet interfaces for 802.1Q trunking or for basic
routing. If you configure the interface for 802.1Q trunking, you can configure
VLANs on the interface, and you can configure a native VLAN that does not use
the 802.1q encapsulation protocol. I f you configure the interface for routing, you
cannot configure subinterfraces or additional VLANs on the interface.
Cisco Router and Security Device Manager Version 2.2 User's Guide
IRB for Ethernet
2-9
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Table of Contents
Troubleshooting
