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Inter VLAN Routing

PostPosted: Tue Nov 16, 2010 11:14 am
by stephen
Its Your Ip .com
How to create VLAN Interfaces for InterVLAN Routing in Cisco IOS
http://www.itsyourip.com/cisco/how-to-create-vlan-interfaces-for-intervlan-routing-in-cisco-ios/

Cisco How To Configure InterVLAN Routing on Layer 3 Switches
http://www.cisco.com/en/US/tech/tk389/t ... e74e.shtml

Cisco SR520 VLAN question
http://www.experts-exchange.com/Hardware/Networking_Hardware/Routers/Q_25711605.html
You don't need to use subinterfaces as the ports are also switchports so can be used to form a trunk to your switch.

Config along the lines of


interface fastethernet 0
switchport trunk

int vlan 10
ip add 10.10.10.10 255.255.255.0

int vlan 20
ip add 20.20.20.20 255.255.255.0


connect this to a trunk port on the switch and set the default gateways of devices in each vlan to the vlan interface on the 520 and you should be able to route between devices.

you can define an untagged ( or native vlan) with

int fastethernet 0
switchport trunk native vlan 10