Cisco 861 Multiple VLAN Interfaces

[GRANT3779]

Hi All,

I understand the 861 router has 1 WAN Interface and 4 "switch ports".

I will have my WAN Interface connected to the "WAN" - all good.

I need to then have at least 10 Vlan Interfaces on the device also. Can I connect one of the switch ports as a trunk to the rest of my LAN and go ahead creating the VLAN Ints? I do not need to route between them.

I know I can do something along the following which gives me one SVI, but can I for example trunk FE0 and then create all my necessary SVIs on the 861?

interface FastEthernet0
switchport access vlan 252
no ip address

!
interface FastEthernet4
description WAN-Interface
ip address 172.17.17.1 255.255.255.0
duplex auto
speed auto

interface Vlan252
ip address 192.168.252.1 255.255.255.0

Thanks

[Mark Malone]

Hi

Yes that's a full switch module in 800 series , have the svi vlan interfaces on the router side and then trunk them all back to a layer 2 switch if you need too for more access ports

[Karsten Iwen]

There still could be a problem with the amount of VLANs. At least my 866VA only supports five VLANs.

[GRANT3779]

Hi Karsten,

Interesting note. I wonder if that is software or hardware limitation. What IOS are you running on the 866?

[Karsten Iwen · Accepted solution]

It's IOS 15.5(2)T2 at the moment, time for an upgrade again ...

On the data-sheet, there is even mentioned that only two VLANs are supported.

[GRANT3779]

I have just had a look over the data sheet and it does seem this will be a problem for me. I have a few spare ISR G1s kicking about that I can use for this project so will dig one of those out instead.

Thanks everyone for input.