Good morning,
I'm currently in the process of replacing our old 3845 router with a 4451. The issue is the 3845 router has an internal switch module and is only using 1 Fast Ethernet interface for tunneling distance learning traffic back to our central location. The vlan under this Fast Ethernet interface ( listed below) on the 3845's internal switch module doesn't show up on the router or the local switches in this remote area. The Vlan is actually configured back at our central location since its being tunneled through our network. Do we need to purchase an internal switch module for our new 4451 router in order to get this traffic tunneled properly? Or is it possible to create a sub interface on a Gig port on the new 4451 router to tag this traffic. I don't want to create this vlan on any local switches to this area and cause a spanning-tree loop since this area is in a different VTP domain.
***Note the Vlan on this interface is tunneled throughout our remote areas to tunnel DL traffic***
(3845 internal switch module)
interface FastEthernet1/1
description ***> Distance learning
switchport access vlan 123
duplex full
speed 100
Internal switch module
NAME: "16 Port 10BaseT/100BaseTX EtherSwitch on Slot 1", DESCR: "16 Port 10BaseT/100BaseTX EtherSwitch"
Thank you,
Doug