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Cisco Router and Security Device Manager Version 2.2 Users Guide
OL-4015-08
Chapter2 LAN Wizard
IRB for Ethernet
IRB for Ethernet
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 thr ough this interface.
Click Yes if you wa nt 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.
Layer 3 Ethernet Configuration
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.

802.1Q Configuration

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.

Trunking or Routing Configuration

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.